I had a C in my 93 Volvo and it was a gutless disappointment for several years. The ECM shorted out around 400,000 miles, and instead of replacing it , Terry at Pantropic Cat in Fort Meyers turned it back to a mechanical B with some pump and timing fabrication. Plus a fuel pedal. What an absolute monster. He set it at 2150 rpm's saying i didnt need it any faster. With 24.5 rubber and 373 rears 105 mph was no sweat. The beast accelerated up Mt Eagle with about 20,000 lbs in my Atlas Van line wagon rolling coal like a Fletcher Class destroyer laying smoke. 4 mpg being foolish, almost seven when being frugal. Dropped a valve at about 1.3 million miles and had the big Cat dealer in Winchester VA on I-81 overhaul it and put another ten years on it including heavy hauling prefab concrete panels up to 125,000 lbs a whack. Broke my heart when i sold it. My two 350 cummins were as bullet proof and economical as anything going but for sheer power and reliability and longevity nothing could touch that Cat. Fuck carb,epa,def,scr,dpf and every other alphabet soup sob that doesnt understand what it takes to move freight and run a business.
When I went to trade school for diesel mechanic, back when mechanic's were called mechanics. My engine I worked on was a Cat 3406B. Really nothing to them, solid engine and when she fired, was so sweet and satisfying. If I remember correctly, my old instructor called the 3408's throw away blocks. My opinion, this old 3406B is still worth fixing. Great video as always
Thank you warren, i really like your video's, especially when you tell stories, you do it so well. I appreciate the time it takes to make these video's after working a very full late day, and then getting the tube cheating you. You do so many different kinds of job's, and it's always interesting to see what comes in next. G-d bless you, the family, and the furry critters.
My uncle is a retired diesel mechanic and you and him are so much alike I wish I had half your guys knowledge lol always a great video thanks for sharing you made my week with the multiple videos
I like you warren, honesty and skill makes you a valuable person. I hope you get paid enough to make it worth it. For one person to do as much as you do is unbelievable
I am an old fart now, but also way back when I was doing my training I worked with one of the old school guys. Back then, the mechanic training you was either Sir or Mr. If you fooled around (and we did, because that's what young guys do), the mechanic would warm your ear for you ! Those old 3406 motors were fantastic, took a real beating, fairly simple to repair and gave good service.
I’ve said it more than a few times over the years about you but it’s always true: you work hard, you work smart, you lead your chosen field by example. Thanks Warren.
Looks like you have a 7FB, JWAC, with a Brakesaver. 3406 (now called A model) was a PCT, PCTA, DIT, DITA. (1973-1984) 92U prefix. 3406B at first was a 7FB, JWAC DITA, later ATAAC was added. As they ran out of serial numbers, the first 4MG's 1-03599 was still basically the same and still could be a JWAC. Starting at 4MG03600 the VTU was the major change. And they went into the 90,000 serial numbers. Then they came out with a 5KJ and it was a 3406B, 1-07799. Most people get this serial number mixed up is the 3406 B 3ZJ, serial numbers 1-16181 is a 3406B. During the late 80's the dreaded PEEC was released. Electronic governor and VTU. You had PEEC II, PEEC II.V They started out as a 3406B 8TC. released next of the PEEC was a 2EK, still a 3406B. Last PEEC was the 4CK and it was a 3406B 1-0845. Another 3406B PEEC was a 5YG strictly a 460 HP @1900 RPM'S. After the 3406B ended the 3406C was released. Mechanical was 5KJ07800 and up, I have never seen one of these. 3JZ16182 and up. The last fully mechanical 3406C was the 8PN. It is a totally different engine and parts do NOT inner change well with the older engine. Finally you had the last PEEC, 4CK0846 and up. It was a PEEC III and had a lot of VTU problems. Just ran across some 5KJ's 3406C's that was JWAC and high HP. Looking into these.
It kinda sounds like you might have spent a little time in a cat shop... guy like you are getting few and far between. It's getting harder and harder to call anyone that knows anything about the older engines. Most of my old buddies that know stuff like you obviously do are gone.
@@danielelliott3659 In my 43rd year, been around the block with Cat engines. Worked on everything but a 1670, 1676, 3306/3406, Gas truck engine and a 1693 with a forged body fuel system. I have never seen these in a truck only pictures. When I hired in 3406 92U's was current production.
Hey Warren, thanks for the video. I enjoy all of your hard work on these videos you put out and wish that I was able to support your channel other then just watching them. You sir deserve it more than anyone that I know of on RU-vid and I really appreciate it. So once again thank you.
Thanks for the video man always enjoy seeing people keeping the old engines running. I really like the old b model cats and big cam Cummins . I did a inframe on a b model cat in a frieghtliner cab over couple years ago and those sure are some really good engines. Keep up the good work man Thanks again God bless
Great video Warren as always you take the time to bring us these videos and like you said you already work from sun up to sun down to make a living. Appreciate everything you do to bring us these videos. God bless Warren to you and your family stay safe.
Great video Warren. As always, very informative and your stories are the icing on the cake (or do you guys say frosting). Regardless, I always look forward to your new video. Thanks for sharing.
Great video Warren ,it's always so interesting watching and listening to you while your tearing down an engine . Enjoy the stories,and rants Thanks for sharing Safe travels
Thanks for the video Warren. So pleased to have you back fixing stuff. RU-vid is not the same without you sir. I'm waiting for the day that train breaks down and they call on you to do the locomotive engine. Did I see that the new Cat truck engine looks like it's PACCAR MX. You'll be delighted as a PACCAR lover.
hey warren , want to thank you for all the videos during the years , you have learnt me alot , even push me to try out heavy mech since its seems good fun , sadly i workt at that shop for 2 months with no pay , leasson that too , greatings from sweden
Thank you Warren, did I see the hay loader still in the shop? You were doing a engine conversation on it, How is that coming, You are a master at figuring this stuff out, what a joy to watch and learn.
Thanks for another video I always enjoy them and always watching for them as I get no notifications from RU-vid even tho I am a subscriber. Keep up the good work.
Thank you Warren very much for all your videos. They have been a life saver for my husband as he has been under the weather lately and watching your videos has been really good for him. He loves every one of them and I usually get a blow by blow explanation as to what you are doing, why and a “that’s how I’ve done it too” comment. Keep the videos coming. He loves every one of them.
Love that engine. I in framed 2 of them from the same farmer. Had 2 kenworths that were twins. Had a blown head gasket and they let it sit for a year. Top end was rusted so had to replace everything. Great running engines for sure. Love the sound too
Great job Warren, I've got a 4MG and a 3ZJ mechanical 3406 and haven't seen a more informational teardown. Both mine have under 400K and only get driven at harvest but the age of them makes me wonder when a liner O ring or head gasket might go bad. I really liked the diagnostics of the 8R 3 point hitch although I hate seeing such nice equipment completely abused like that.
There I was, scratching my ass, throwing stupid toys at the cat and I thought....Warren! Lo and behold. Joy, another Warren video. So, large coffee, a couple of biscuits, feet up, cat punted out the window. Settled down to watch the master at work.
great vib Warren, lve just stripped a 4 cylinde dura torque engine down with a rob knock only to find all the top bearings on the rods where worn badly and this was on a reman engine to that had only done only 10,000 miles.
I liked your comment on the turn in the fuel screw. We farm and pretty much all of our tractors have been turned up I don’t have anything stock. Years ago I used to tractor pull with an 86 series international Harvester those American Bosch 100 pumps had a fuel screw also to turn the fuel up we would turn them up to go tractor pulling and turn them back down to go back in the field at what we normally ran them at there was an old mechanic years ago that was a pump master I’m getting horsepower out of them. His best line used to be I can make it run I won’t guarantee how long lol
I have a 3406C and this video was of the most interesting to me. The engine in my Kenworth has over 40,000 hours on it and still running. Really felt for you when you were getting the oil pan out. I seriously doubt the owner will rebuild this engine due to cost and time down. Way cheaper in $$ and time just to replace.
I am not a fan of cabovers because I drove cabover Freightliners for years. If that was my truck I would find a used engine or a used crankshaft and get it running again. The older trucks are way better than the new ones. But I am a fanatic about 3406`s as I am one of the few that ever ran a D7 with a 3406. It was the fastest Cat steel tracked crawler every made. It is the only D7e ever converted that I know of the other D7`s were D7f`s. We pulled out a 180 hp 4 cylinder engine that ran 1330 rpm`s wot. And we installed the 3406 that would run 2100 rpm`s wot. But we did change the ring a pinion gears on the cross shaft. The tractor would go 8 mph in 5th gear so we never used 5th. But I know how much torque a 3406 has back in the 80`s I was driving a 1979 International 4300 with a KTA Cummins set at 525 hp. Some viewers may know a KTA Cummins is 1150 cubic inches. When pulling Cabbage Hill east of Pendleton guys with 3406`s would out pull me going up the hill. But I would always pass them when it started to level off as the acceleration of KTA would let me upshift. And they could not upshift until it leveled out. But the drivers we have now have no clue what real truck driving is like. I learned in a Kenworth a 318 Detroit then I was driving a Freightliner with a 220 Cummins. This a truck that took me an hour to drive 13 miles. This is also a truck that I hand to downshift going down hill because of the headwind. Thank you for another nice video.
👍👍have got a B model outback in a retired freightshaker...hasn't ran in probably 10 years.. should do something with that engine some day....have also go an E model, that I quite like.... like most folks ..as well as it's successors ...just got done out of Framing the fuckin thing... hopefully it runs a long time again...knock on wood...but anyway,thanks for all u do..as always 👊
Didn't do all that work to find out it spun a bearing!! You were told it hydrolocked and you removed the head and verified the original complaint. Further investigation, after finding that with the head removed it was hard to turn, found the spun bearing!!! Great diagnostic teardown!!
Yeah when i was in Diesel school in 1987 , the school wouldn't let us rebuild the cat engines , too expensive , so we were stuck on the DDA's , i remember seeing the first prototype Cummins diesel in a pick up truck , after that diesels became a big thing in Pick up trucks. No more racks for fuel delivery , everything was switching over to Electronic. Worked for Cullen , they had the lightest truck engine on the market but the heads would crack , ended up in the shipyards and worked as an engine fitter. Lots of memories , my uncle and grandfather were diesel mechanics.
When the 3406b was introduced into trucks in the UK in the 80's we found that they had a lot of problems with the intermediate head gaskets, also the engine stop solenoid on the fuel pump was very unreliable,forever being called out to the roadside
4/22/23; ..spun rod bearing on # 5 from liner 'o' ring leaking water, = thin 'milky' oil=ruin crank. Incredible details captured by your very hard work & video editing! Very good job Warren! Stay safe & carry on!👏👏👍👍✅️🙂
What I did on a Leyland engine , head removed, sump removed, filled the block with neat anti freeze. left it for an hour, then blue drips of anti freeze came past the liner seals on two defective liners
Let's not forget those pesky adapters that bridge the injection lines to the nozzle, that can cause a miss. Learned that the hard way once upon a time.
Unbelievable amount of work for a diagnosis. Your brain and know how is a vast amount of knowledge that could hardly be learned from a manual. If you get tired of doing it yourself, you should teach, like the fellow you mentioned that made an impression on you, since you would have so much to offer. Kind of like the last few in a tribe of Indians passing on a skill before they croak and it's lost.
