I strangely enjoyed the valve grinding closeups. Watching the oil flow, listening to the sound of the wheel was honestly relaxing. Your shop is very nice, I hope these videos raise attention, the kind that lines Your pockets. That degree of tooling and the maintance of them ain´t growing on trees and good work deserves good pay. I fix bicycles as a hobby and earned 30$ basically for changing two tires and one tube- sounds simple, right? Well, no. I had to clean, inspect and grease the bearings, inspect the surfaces where the tire sits and then put it all together and make the tires sit and run true. It was 45mins of work but the customer appreciated the effort and I have another one under the belt that will come back. I was a junkie not so long ago and had to train my brain to naturally spill out dopamine and a satisfied customer does just that. Worth it. Have a nice time, Greetings from the other side of the pond!
See, you can teach an old dog new tricks. I remember when CNC machines started showing up and how us old dogs thought about those machines were going to take all our jobs! That so turned out to be completely wrong. IMO I think AI will follow a similar path
This is what you can’t find in the world today, “will it matter, probably not but I don’t like it “ spoken like the technician and gentleman that he is. My hats off to you sir. 24:06
Strongly agree - was going to also write this comment. I watch every video, and have found myself starting to scrub forward since the music started getting added.
Love this channel for many reasons; craftsmanship, attention to detail, and watching a father and son working side by side. If I could add one insignificant comment, I prefer sounds of the machine shop over music and motor sounds.
There’s nothing I appreciate more than someone who takes pride in their work . Anyone can do a job , but doing it right , and doing it better is what makes a true craftsman.
I'm really glad your father knows how much detail we want to see - and how to present what he's doing so well. He's got a professional presentation style. Editing is top shelf! Thank you all of the channel!
Good job Jim. Very thorough job. Definitely going to be a nice engine. I worked on Minneapolis Molines maybe 45 - 47 years ago. Alot of times the heads were cracked. We had them furnace welded back in the day. Then we would install new guides and seats. But the cracks were leaking water. Nice repair on the valve guide boss. I like your new lathe. Thanks for sharing. Have a great day.
The valve grinding brought up a memory from my senior year shop class, they brought a new class with engine repair. We got small engines that were donated and we took them apart, cleaned and refinished what we could and tried to get them running. My partner and I had an exhaust valve that was quite burnt on the seat, all we could do is lap them with grinding compound. I and my partner grinded that valve by hand for two days, in that class, so about 1:30 minutes. Am proud to say our engine did bust off first though. That was a fun class.
I had an Austin A Series 1000 with similar issues. I spun the valve in a power drill and filed it clean. The seat had some pitting but cleaned up with lapping paste. A new valve and seat were the correct fix but I was extremely broke. It ran for 10,000 miles with no problems until rust finally scrapped the car.
Not trying to be a negative Nelly, but for me, I'm not crazy about the musicac during the fast-forward areas. Other than that small whiney, I do enjoy the cleaning guy.
A lot of machine shops back in the 80's did as they wanted, I shopped around along time to find one to do to it correctly. I am a pensioner so I do remember how farm equipment was assembled I grew up on a farm.
@@iaial0 Next time I rebuild an engine I'll try using ketchup instead of assembly lube. I've got an early 60's Ford Econoline pickup that needs work. (Those engines are so tough I bet you could use ketchup and it would still work ;)
hate to say it , but that is "Normal" powercell/ Lanova injection system cracks . in fact when i was AG road wrench , Chuck Habrick , Habrick machine Amersterdam NY advised me ; we pressure test , stake around the seats a few places and go about our usual work as ALL this type and all the different brands have similar cracks . " many crack from face into injector hole also . if not into the injector seat or "water" , we ran them , just gove owner proper warning and choice ; repair , replace , or run it . did work for James MacFadden sharon spring NY , near every such head , all colors , same cracks
In hindsight, it looks like a really bad design. When diesel cars went from pre-chamber to direct injection, cracked cylinder heads became a thing of the past, where before it was something you'd have to expect, certainly on turbo diesels.
Excellent work Jim. Nobody could say you are not a perfectionist ! Being proud of your work is something everyone should aspire to. You Jim are there already!
You guys are killing it. Being as transparent as you guys are, makes it even better. Excellent content, love it. I watch every video. I hope you are getting compensated well. You deserve it.
It was really interesting that you commented on the old way of doing the valves and seats. I worked as an automotive machinist back in the early1980's and the machines we thought were really good seem really poor compared to what your using. We worked hard and I'd I as good as we possibly could, but it not the precise product that your getting. And I'm surprised at just how much I have forgotten. I spent the rest of my career working on turbine engines.
I did the interference valve fit. But I gladly accept your practice of valve and seat matching angles; as it's been 40 years since I last did a valve job.
Dad always said if it’s worth doing it’s worth doing right, he taught my brothers and me this, we taught our children this, and our children are teaching their children this. We had a used Corvette sales only, body shop, parts, and service store, there were plenty of times when people would bring us cars that they took somewhere else because the other shop did a subpar job. We only did it right or we didn’t do it, if the customer couldn’t afford our prices and it was a simple job we would tell the customer how to do it themselves so they could save the money. Those people became lifelong customers.
On most inline six cylinder engines the rear head takes a lot more heat... Would it be advisable to install that head to the front of the engine? Your two are great to watch... I am a perfectionist as well and like to have things done the best, and as correct as possible... Thanks! Ron from Sandy, UT.
I wonder why they recessed the exhaust valves so far especially when modern diesel engines have them all at similar depth? Surely this must be restrictive for gas outlet? Do you know why? And, so that young camera/machining guy multitasks pretty well then. Love those circlips on the valve stems, good for a low revving engine. Pity we coud not have something similar that works on a modern high revving engine.
Jay Leno says "the difference between an amateur and a professional is that the professional know how to fix his mistakes" I guess there is something to that. It has been a joy to learn and binge watch your content. What a great channel and it is fun to watch a master of his craft do his job, but that imperial measuring looks so cumbersome so it's strange that the US holds on to it instead of converting to metric. I get that with old stuff it's all like that, but man, the metric system is just so much better imho. Only 3 countries still use inches and pounds, but you US Americans sure like to go against the flow and common sense the rest of the world uses. God bless and lots of love from Norway...,
The in depth content on this channel is amazing.I ran across a similar channel thats almost as good but I forgot its name.I think it had a Josh guy on it but I may be mistaken
Was it automotive machining or just a machine shop? You might be thinking of Josh Topper over at Topper Machine. youtube.com/@TopperMachineLLC?si=uCzoy5hYp6jJmiDG
TO WHOOM IT MAY CONCERN : THE CLEANING GUY / JANITOR SHOULD GET A RAISE.. IT'S UNFAIR AND UNETHICAL TO MAKE THE CLEANING GUY DO ALL THE WORK...!!! WHERE IS HR WHEN YOU NEED THEM...?? SHOW YOUR SUPPORT FOR A RAISE FOR THE CLEANING GUY BY PRESSING THE THUMBS UP BUTTON .😊 👇
"This being stock, catsup is fine"! The Cleaning Guy knows machine work, is a great presenter, AND has a sense of humor. Who knew? 😉 Somebody might be outta a job!
The experience level shown on your videos is amazing. Thanks for sharing! I hope the shop I end up using has as much knowledge and professionalism as your shop shows.
Watching the new valves get cleaned up actually showed why it's a good idea to grind them even though they're brand new. If they'd been perfect from the factory they would have ground the marker off evenly. But a few of them didn't get cleanly off evenly until a few passes
Too many comments, I know. Is interesting the valve grinder is "in the corner" and the interference angles are not needed. When I was doing that, it was always 45, 44; 30,29...or whatever. But, always 1 degree of wedge angle. No doubt I am way out of touch with what's going on now. We had Neway carbide cutters for seats...not Serdi. I'm sure the Serdi is more accurate but the Neway was definitely quick for production. The basic thing is still the same though, Those valves are super long.
I worked in an automotive machine when I was young (back in the early 70’s). Eventually, life introduced the culinary world to me, and I’ve been here ever since. Anyway, here’s a joke…What’s the difference between a cook and a machinist? Answer: The machinist washes his hands BEFORE using the restroom😊
Jim. I realise you're "just the cleaning guy" but since you now have that fancy cnc lathe wouldn't it have been easier to remove all of the new valve guide and turn a new one, full length, complete with the "broken" shoulder and replace that one guide completely. You're going to finish hone them anyway so doing it in one bite would be the way to go. IMHO. Greetings from Canada's banana belt. 🤞🇨🇦🍌🥋🕊🇺🇦🕊🇺🇸💩🏁👍
29:30 No worries Sir. We are along for the knowledge... not the entertainment. Thank you for all that you do to keep this industry alive. Anyone else try to find a good machine shop lately?... It's tough out there. Thanks and congrats on the new little one. All the best to you and yours. Thanks again.
Question - about when did the 3 angle valves and seats become a standard to do in older v8’s? I’m assuming back in the 60’s 70’s just straight 45 degrees valves and seats came from the big three. If that is in fact the case, did Ford have 45 degree valve and seats in their racing hayday? LeMans, track circuit etc. And if that’s the case what’s the big deal on the three angle setup. Especially for street cars and trucks. A home diy’er can almost do a complete valve refresh job at home with simple tools to get a 45 degree angle.
Had an old international 7.3 idi motor back in the day. Had the same style freeze plugs. Machine shop didnt expand them enough and it kept popping the plugs out when the cooling system would build pressure. Was fun when the ones behind the flywheel popped and i had to pull the transmission again. 😑
Hey mini Jim, can your camera broadcast video via Bluetooth or wifi to an iPad so the cleaning guy can monitor the video condition? I purchased one of those kid protector covers with back legs for my iPad and it protects it very well and has a built-in handle. I use mine with my wifi endoscope, and it works great. I use ketchup on my motorcycle chain and haven't worn it out yet!🤣 I love your videos guys, it's cool to see machining from engine machinists such as yourselves, I like seeing your specialized tools.
Yeah, curious would 14 the exhaust ports.Just a hair help with cleaning that up.I mean, it's not like the exhaust manifold's and/or headers ever are exact.Usually the exhaust is a little bit bigger or a little bit smaller than the actual port
We were told by the Briggs & Stratton school instructor to use 45 and 30 on the valves and cut the seats 46 and 31. Their reasoning was temperature. Obviously ,air cooled engines run MUCH hotter (upwards of 300 degrees in summer). Since the valves were much hotter than the seats, thermal expansion would take up the difference allowing better sealing at operating temp. Your thoughts?
I have never heard of that before. It was my understanding that the interference angle increased the contact pressure at the line of interference to help the valve mate into the seat.
It's nice to watch a seasoned experienced Machinist with many years of experience,those MM engines were built very good and designed to run a bit lower rpm's compared to other manufactures engines of the time and resulting in using less fuel,and producing the same power and they were designed in such way to last longer between overhauls and to last many years just because they tached out lower with less revolutions delivering the same power and low butt end torque ,nice engines
There are several ways to prevent those heat cracks. As a machinest only one 1: slightly round the sharp edge off the exauhust valve recessed area after sufaceing the head. The other ways are completely the opperator responsibility: Do not overheat the engine; never use ether to start the engine; use good mix of antifreeze for the area climate.
A very short squirt of ether to test wether you can achieve ignition at all especially in a long dead gasoline motor is one thing, but in a lot of the bring it back from the dead videos on you tube you see the can of ether being sprayed continuously for minutes at a time. Not good! I work on Yanmar and Kubota diesels in lawn and estate sized tractors and Yanmar in particular puts a big sticker on the air cleaner that says NEVER USE ETHER TO START.
I'd like to know all the different songs that was used while doing the valve job. I know it's something special about them. So who is the artists name and the songs. Great job....
Rarely do I have any clue as to what you're doing. But I find your videos to be extremely interesting and I do seem to be able to follow some of it!. LOL
The snap ring valve retention system is a bit wonky by MM unless they had a poor keeper design? That is about the only thing it will protect, most valve failures ive witnessed break below the guide so it wouldn't help there Your shop is top notch with your knowledge and skills and business ethics like it used to be and your doing pretty darn good in the social media world 😊
I think as the owner and you messed it up because you were playing around with a camera would really tick me off. What you show is good stuff and few people would have the machinery to really need to see the parts you can't show. Thanks for sharing.
Pressure testing the heads with fluid in the water jackets may have been a good insurance policy with the cracks in the head and evidence (pitting) of water at some stage entering the combustion chamber. Just my two cents.
I would guess that setting valve seat cut depth by spring height is probably more accurate. Once a head has been cut down to clean up the head gasket mating surface it would throw off the measurements.
Do you you take on apprentices during the summer? If so I’d love to learn! 6:56 That repair is better and stronger than factory! It’s not a cast piece it’s forged! Awesomesauce!
I seem to find them cracked on the ends all the time. Between the frost plug and deck surface. Guys pull the head thinking the gasket or plug is leaking. The local guy that re forges heads uses moline and 504 case heads as heat sink blocks. All of which crack famously in the same spots
