Tearing Down A NEGLECTED Willys Hurricane Engine... 

The fact that Auggy is still snow white in a machine shop shows just how clean and organized your shop truly is!

The cleaning guy found the camera again and we are happy that he did😉

Worked for a Jeep dealer in Tulare, CA in the mid 1970s. They bought an entire truckload of used surplus 4 cylinder Jeep engines. We rebuilt a few dozen of these engines using surplus WW2 parts. It took longer to clean the cosmoline preservative off some of those parts than it was worth. We would test run the rebuilt engines on the bench while they were sitting on the oil pan. Those engines were used in all sorts of agricultural equipment as well as all early Jeeps.

I see that The Cleaning Guy has embraced power tools. When you first started this channel, he was a speed handle guy.

Wow ! What memories! I was a mechanic for 50+ years on forklifts, I rebuilt so many Continental, Hercules and Waukesha engines I dream about that a times LOL , seeing you strip down this old f head reminds me of my youth , most of the engines had Castle nuts with pins on then or safety wire ! The best time was standing them up on the bell housing when done and painting them , great satisfaction from that job !

I much preferred the commentary vs the music!

I bought a '52 Willy's 1 ton 4wd from my maternal Grandpa for $357 when I was 14. I pulled the 134 F Head out and my Dad and I rebuilt it. Had to bore it .030" over. Had to sell it in college but bought it back. GOOD MEMORIES!!!!

Brings back memories. Many years ago I had a 1943 MB Jeep with a 4 cylinder flat head engine. It sure was so easy to work on.

The bypass filter...some of the oil was pumped into the canister filter...all the oil went through the pump unfiltered. One bypass filter which used a roll of toilet paper as the filter medium was the Franz filter...sometimes used as a supplementary filter to the OEM full flow engine filter. Most OEM used the "normal" cartridge filters we know and love today....before the spin on filter.....

This gentleman is a surgeon on these motors. Haven’t seen anyone better !

I'm no mechanic , but that was a fascinating 55 minutes.Like watching Columbo forensically diagnose the engine's history.

Newbe camera operator did a fine job! His lack of knowledge coaxed some extra explanation out of the old man. I've watched enough motor builds and enough of your videos to know enough to be dangerous, but having a little more explanation for the why and what for is lovely. Sometimes, some of the basics you guys take for granted aren't clear to me and just a little more context is all I need to put it all together! Keep up the good work!

Congratulations to Nicholas! And to you, Jim, for knowing about that bolt hidden in the intake! Love the channel!

Absolutely love this tear down video. Excellent job in doing so and the back up camera man did awesome.

I live in Australia, born in 1953. When I was in high school one of my friend's father had a GM Holden (Australian designed and built car) It had about 120,000 on the clock. The new detergent oils came out and the dad agreed to have it put in his engine. It worked really well and removed all the gunge and muck from the rings. Needless to say, the engine was clean but removing all the carbon meant it now used more oil than petrol. As Jim said 100,000 miles was the life of these engines.

You are an Old School Perfectionist. Very few of you left around, Love the video's. Don, CA. 4-1-2024.

I've been watching your channel for awhile now. I find it both interesting and informative. I never leave comments, but I have to this time. The reason being I am rebuilding a 55 Willy's Hurricane 6 flat head. I learned a lot. Can't wait for the machining videos of this engine. Thanks

Tuning in here, all the way over the pond from little old England just to watch the cleaning guy tear into this engine.. Love your work guys.. a subscriber for life here..😃👍

Jim, as a truck owner operator in so cal in the early 80's I ran distilled water and Nalcool, no anti freeze in my small cam Cummins. Pops taught me that way as we only ran over to Phoenix or Tucson or north to the bay area or Sacramento for GI Trucking at that time. Early in my career I remember one trip between Phoenix and Tucson it snowed a bit. The trucks grill had collected some slush and I remember worrying about a tube freezing in the radiator core and splitting. By the time I got down to Tucson it was sun up and all was good. Nalcool was oxblood red and would leave a telltale red stain if there was a coolant leak anywhere. It's main purpose was to lessen the pitting of the wet side of the cylinder liners from cavitation and inhibit corrosion. Nalcool was basically equal to what Cummins sold as DCA at that time. Distilled water and Nalcool did great in my experience with my second truck a 1986 IH 9670 Eagle with an NTCC 400 big cam Cummins. We ordered that truck with optional large radiator, a Modine beta weld. I could remove the radiator cap and see clean bare copper and clean silver solder inside the filler neck just like when it was brand new, even 10 years and 1 million, 30 thousand miles later! That truck came with a small spin on coolant filter for which I remember buying Nalcool branded filters that had a dose of cooling system treatment inside them. In 1992 I moved to Reno Nevada and quickly had to find low silicate anti freeze to add in the coolant mix now that i would be running over Donner Pass everyday. Had to buy and install a plug in block heater and an ether inject starting aid for that Cummins. Things we never thought about when living in the banana belt.

Thank you guys!!! Awesome show as usual.

The cleaning guy is such a humble legend. Could watch him for hours

I've never worked on a Jeep engine but Dad and I worked on so many cars and tractors from the 20's through the 50's. Boy that brings back good memories. You never knew what you'd find when you took an engine apart. Our last project that we were going to work on, a 1925 chevy truck, is still sitting waiting where Dad parked it 30 years ago when I finished college and moved away for work. He's been gone 15 years now.

I grinned from ear to ear when you mentioned your Dad making the bolt puller for you long time ago. Funny how we don’t forget how much our Dads helped us along, so we can pass that along to our Boys ❤️👍

Such rugged designs that these earlier machines were.. Not made for 1/4 mile acceleration competition, but if you needed dependable power for industrial duty applications; these heavy little 4-bangers were the ones that could be relied upon to get the job done... They made it through several wars, and then they were overhauled and re-purposed when those bodies & frames , went to heaven... That's Quality !!!

When I started working as a mechanic in 1975, my job was to tear down these engines and send them to the machine shop. Then reassemble them whenever they were ready. We had a fleet of 30 Jeeps with this and the flathead versions. We had lots of spares.

You’re videos and cutting edge engineering videos are absolutely my favorite hands down 👍🇺🇸🇺🇸

As one who is a little senior to the clean-up guy, I really enjoyed this one.

I know someone who has a head for this beauty… I asked what the rarest heads in his machine shop were and Willy’s hurricane was his answer

Absolutely enjoyed this segment. Neat old engine

I like how twisted off bolts are just matter of fact, run of the mill, everyday work!

I'm glad to hear that someone besides me remembers the old days when 100,000 miles on an engine was almost a miracle. My sons always look at me like I'm crazy when I tell him about the old days. When I went to work for the Subaru dealership in 79 I was very impressed with the number of miles people getting on those engines. We had a couple of surveyors that had the Subaru Brat and they had over 300,000 miles apiece on them and that almost blew my mind.

Really enjoy watching these old engines being torn down and reconditioned by someone who knows.

Pretty darn clean inside, even with the gunk in the pan. I bet this had a re-ring job done on it in the past.

Love this channel because of the amount of knowledge and the oddball stuff that gets worked on.

Congrats on the baby! Nice fill in camera work Josh. Enjoyed a look at this Willys Hurricane.

The man KNOWS his craft. A pleasure to watch.

This popped into my feed, and a few minutes in, I'm subscribed. Jim definitely seems an easygoing guy, the kind where you want to pull up a chair and hear what stories he may have, and learn from his treasure trove of knowledge.

LMFAO your son in laws comment about his engine had me cracking up. What a good sport of him to come help out when you guys need an extra hand, that's truly what family is all about

I wonder if this engine was the one from my friend A.L. Podva's truck? It was green, muddy, probably a little rusty, and always had a bed full of hay and barb wire fence stuff. He owned a ranch in the hills of Danville, CA and drove that truck around in the hills and on the streets of the town for decades. I was a runner and would chase his cattle off the streets back up into the hills and he would come by and fix the fence. Sometimes I would help him with the fence too. He was a super nice old guy and brought me a Christmas gift for years. He always had a smile and dried Copenhagen on his lips. I follow this channel - what a coincidence if it is his truck! 😊

I have been an engine re-builder and sports car high performance modified engine supplier in my past life(retired). I use generally diesel engine oil after break-in of a rebuilt engine where for Gasoline engines I used SI-5W30 for the first 1,000 miles running and then service with SI-CI 30W50 as the ambient temperature is above freezing and to 40degC. When all the new fangled oils with additives became prevalent, 1970s/80s, and servicing Ford XD/XE era on-wards, it became common for the additives to accumulate in the bottom of the sump so deep that oil would not drain without using a screwdriver to dig a hole to release the oil. We were removing sumps in so many vehicles that servicing was always over budgeted values. The sludge additives, as sent for analysis, showed that they were not being maintained in suspension in the nominal base oil. This was the main reason I used the compression ignition oils for most of my gasoline engine servicing. The sump was mostly just a carbon grime in the sump as the compression ignition oil detergents washed the internals of the engine. Later specifications were for both spark ignition & compression ignition in the 1980s onwards. Porche and another sports car manufacturer took Shell on over the rapid deterioration of the engines due to oils not maintaining the lubrication as claimed. Just a bit of background on oils as I was taught in the Air Force and also by a mate who was a Chemical engineer for the Shell company back in the 1970s/80s. Ozzie Follower

Way back in about 1980 I rebuilt one of these, the bores were trashed, I bored it to 60 over with a Sunnen hone, I put 2 to 3 thousands taper in the bores, That was an experience I won't forget. We did it in-frame to save the customer the R&R labor.

I'm with you, oil galley

My man, you need to get some followup videos. Have the clients take a 30sec shot of the engine installed and running. It's gonna blow up the views. You sir, are a bona-fide badass. Methodic, thorough, and not afraid to back off when it's outside your box. Love it.. wish more had your fortitude.

This man is the absolute baddest!!! Honest and professional... Hes the engine doctor and his son is the shit too. These men are honest good men. So refreshing

I drove a Willys Jeep for my company commander in 1954 and 1955. The military version used a 24V system and a permanent oil filter. The filter contained a stack of closely fitted thin steel plates with wipers between the plates. Cleaning was accomplished by several turns of a top mounted handle that wiped the accumulated sludge from between the plates.

Early engines used oils that had no detergent additives to keep contaminants in suspension. It was entirely intentional in the design that the contaminants would settle in the sump as sludge and stay there. The float for the oil pick up was so the oil was drawn off near the surface not down at the bottom where all the sludge collects. Detergent additives began to be added to oils once engines began to be fitted with oil filters. Today, small engine lubrication still works in this way and it is the main reason manufacturers specify special small engine oils for them that don't have detergent additives

I believe you truly enjoyed tearing down that old iron. And we got some automotive history.

Absolutely loved this video. The detail and explanation shows the incredible amount of knowledge the "cleaning guy" has. Love the detail and explanations!!!

God Bless you all for what good work you provide for your local farmers and working man. Happy Easter ❤

First Engine I ever helped Overhaul was an Earlier 134 Flat Head. I was about 16 or 17 and the guy I helped Dad owned a repair shop and he tutored us. Ran good when we got done and we spent many Hours running around in a pretty clean CJ-2.

Wow! Took a moment away from this channel and y'all are at 640K subs now!!! Holy crap. Rock on :)

Thanks for the trip down memory lane. Before he passed in 2010, my Dad owned a restored 1952 Willys Aerowing automobile. It had a six cylinder F-head motor much like the 4 cylinder version in this video. It was coupled to a 3 speed on the tree with electric overdrive. Surprising thing was that the automobile was unibody! Unibody was kind of rare back in those days. It got about 26mpg using the overdrive.

Thanks for showing us the insides of a unique post-WW2 motor! Not too many F-head engine rebuild videos exist and you are setting a high standard. Likely to have very good parts support for that motor.

WE just had to replace the rear main seal in my project car 's engine after it was rebuilt in another shop. The neoprene seal was not correct for the engine, was gobbed up with silicone and leaked like a sieve. We also cleaned out the oil pick- up , which was choked with crud. We stripped and cleaned all the oil gallys ( there you go Jim ) and cleaned the lower block. put the main bearing caps on the right way around cleaned the crankcase . we inspected all the bearings and used assembly grease and reassembled, and re installed the unit into the car , she started and runs very nicely . But I learned an important lesson, check every thing !

Galley is a ship’s kitchen. Parallel grooves in cylinder look like what happens when a piston breaks. It has those buttonhole skirts, so one may have broken in the past.

No, no no no no, please, please dont add music, please. Its absence has been something that has made your videos so enjoyable. This is not a good thing to do.

Excellent job josh! Thanks for filling in. Good camera work with plenty of detail and competent framing. Enjoyed this teardown vid tremendously.

It is so refreshing to watch a video on RU-vid made by someone who has experience and actually knows what he is doing. Plus he doesn't play any annoying "rap music" in the background.

I am just amazed you have so much understanding for this old engine. I was five years old when this engine was made.

I agree. As a 74 year old, please don't add music. Per the Webster Dictionary, a Gallery is a Covered Walkway, usually with Pillars supporting at least one side of the Covering as support. A Galley is referred to as a Narrow Eating Area or Kitchen on a Ship or Submarine. In the Automotive Industry the Cam Bearing Narrow Sequecial Jurnals are known as the Galley. Thank you, known as the "Janitor ". Have fun and take care. A Loyal fan.

I love watching you work Sir! A close friend invited me to wrench on his '51 f-head last spring but we only went as far as cleaning up valve seats before she ran again. I always wondered what the rest of the internals looked like and now I know. A great project, thanks!

I love this channel and it brinks back memories of my auto-shop days in high school learning from Mr V about the good old days of racing and automotive. You have an awesome memory and your customers are lucky to have you working on these rare old engines. I'm so happy to see your son following in your footsteps and keep the tradition of quality machinist alive and well. I was wondering about that one tooth off on the crank/cam gears and wonder if that was the cause of the overheating and bearing damage? I can't believe just one cam bearing and the rest metal to metal.......WOW. Thanks so much for all your videos and the trips down memory lane.

Absolutely mesmerizing video..... From a Fl. Drag racing guy that pays machinist an awful lot of money!

Scott @ C&C Equipment carries a great deal of parts for Willis jeeps.

You're FEEDING OIL to the engine. That would be the engines GALLEY!

When I was learning engines in the 80’s, I was taught the term oil galley and galley plug. Also known as oil passage. Lol

This is going to be an interesting project to watch. And it's going be fun to see how well it goes For you when you are done with it? I am just glad that it's you that is doing this one and not me. There just seems to be a lot more to these engines than engines of today's technology.

Jim, I use a large drill chuck to pull pins with. Just put it on, tighten it down, and a light twist and pull is all you need, no more fighting it with pliers. You could even put a handle in it.

My dad had a’56 Willys which I drove when I was a teenager. It only went about 40mph but was great in the woods.

I've been looking forward to watching this one all day!

I really enjoy this channel. Very educational and the people in it are all great, just the type you would like to have as neighbors. About old car engines, I inherited my grandparents all original 48 Ford Super Deluxe. It had about a half inch of old oily sludge in the oil pan we removed. Fortunately, my grandfather had a canister type oil filter on the engine so that probably helped save the engine. The engine didnt need rebuilding, just some maintenance at 57,000 original miles. Engine is very quiet and runs as well as you would ever expect from a vintage Ford flathead. Great channel.

I wear gloves daily in my job. Changing to a clean set of gloves happens a lot and the sweat on your hands makes it difficult to slip the replacement gloves on. Wearing two sets of gloves allows for easy replacement of the outer pair. 👍🏽

Love watching you guys!

@1:26 The timing gears were one tooth off!! @34:15 that is just what you said!! Great minds think alike, brother!!

There is a small hole in the side of the filter housing center tube that must be cleaned out or oil will not flow through the filter to the timing set. Also this is a partial oil filtering system. not all oil is filtered. You can increase the oil pressure to the #1 main bearing by welding the hole shut on hex oil tube that sprays onto the timing gear set and re-drill it to .040" .

My first engine rebuild was an F head out of my uncle's jeep panel truck. It was the delivery vehicle for his dry cleaning business, so got a lot of stop and go driving. It was 1959, and I had just graduated from High School. Used a Motors manual from the public library to help me get through the job. The truck was still going strong when I returned after a four year hitch in the USAF. Thanks for the memories.

Thanks Josh!

I am a retired mechanic and I collect old factory workshop manuals as well as the industry manuals that suppliers to the industry used to put out for workshops and up until the 1960's it was a common practice to do a head de-coke that involved cleaning all the carbon out of the exhaust and inlet ports, combustion chamber and all the build up on the valves. More times than not the valves were just hand lapped if they were not to bad as valves cost quite a bit back then. In-chassis rebuilds were also common as heads and sumps could usually come off with the engine in place. Rebuild was an optimistic term as only the rings and big end bearings were generally replaced as well as the head looked at or in the case of side valve engines they would be pulled out and cleaned. With dirty fuel, rubbish oil, and no filtration engines filled up with gunk very quickly. Interesting to note that the first Land Rover 4x4's made after WW2 also had a four cylinder F head engine made by the Rover company. When you see these engines you can appreciate just how far we have come and the manufacturing lessons learned from WW2 along with metal alloy technology that spawned the great engines of the 60's and later.

Oil galley is what we called them at the Chevrolet foundry and at the Chevrolet engine machining and assembly plants in the 60's. I have called them oil galleys since I started working on engines with my dad back in the late 40's and that is what he called them. He was a Packard Motor Car machinist. . So I think you are in good company. I'm an old plant engineering supervisor at Chevy during the 50's, 60's and 70's.

I really appreciate how neat, clean and methodically you guys work.

This is an awesome look into a classic, you guys do a great job really going over everything you need to know and all the little tips and tricks.

I'm from Alabama, and I've always heard them called oil galleys. I'm with you cleaning guy!

A pure joy to watch!

Thanks, truly entertaining. I used to work on some of my older stuff. I bought a 90 Chev and when I opened the hood all I saw was a big flat expanse of engine cover. Closed the hood and said goodbye to my days of vehicles I could work on. Auggy , a white dog in a shop. Seldom would work in an older garage.

People in Texas to this day run fairly new vehicles with plain water in the cooling system. They are actually surprised when freeze plugs pop out when the temps drop to 22 degrees.

Worked one summer for a bean farmer. Got an old CJ2 from him. That flat head 4 had to be rebuilt. I remember how quiet the thing was at idle. At top speed of a whopping 40 mph, it sounded like it was coming apart. Drove that thing for a long time. Miss those days.

You’ve got my head spinning with the floating oil pickup. A necessity with older non-detergent oils, but not any more. I went through the motions of cleaning out the sludge in the oil pan of a continental 226, and now I wish I would’ve welded or pinned that oil pickup to eliminate the floatation. Might be going back!

Big jeep fan. Thanks for doing this video.

Really neat seeing the more rare engines being reworked. Great job!

I don’t recall ever enjoying a teardown as much as this one. I learned of exhaust in the block, intake in the head, pins to prevent main bearing rotation, offset slot for distributor drive, (early Ford flathead had an offset drive slot (my Dad taught me that) tapered bolt’s from back to align flywheel. All kinds of interesting stuff. When this 73 yr old thinks he’s seen a lot, I see a bit more ……. I like it. Thanks for a great way to spend an hour of time 😃

Keep on kicking ass Dad! Love it! Keep the new camera guy, he's good All my best to that other cleaning guy. Aloha

These are always enjoyable videos. Thanks!

Legend has it… people used to bypass oil filters/not use them for various reasons. My grandpa said people thought it’d rob a ton of power or that the element would fall apart and ruin the engine. Lol

Galley is correct… Don’t let these youngsters corrupt you. And thanks for videoing this tear down… I know we gave you a hard time the last time you tore one down without a video

Beautifully done!

Omg. A Willys Era engine from back like 1939. That's what my engine was that I rebuilt for a 1964 Jeep FC150 truck. It was a 4 speed 4 wheeldrive. I love that truck but it got stolen in North Carolina. My friend's daughter sold it not realizing that it was half mine. I loved that truck. I really missed it as I have gotten older. It was so fun to drive. And I had memories with my mentor. That is what made it so Special. As I'm 53 now.

My first overhaul that my dad involved me in was one of these. Well, driveway ring and bearing job is more like it. The Iron Duke of its day.

My grandpa had a hurricane 6 in his yeep (jeep). It was silent when running 😊❤ miss you grandpa. 😢❤

A sunnier and hour longer shout going out to the engine wrecking crew.. ⚙️🔩

Absolutely fascinating as ever! This prior generation of engines were so much more... accessible to humans. Modern machines no doubt make sense to other machines but these were built by hand, or at least hand tools and some amount of handicraft. Beautiful work in its own way.