High pressure fuel pump assembly. 1939 Caterpillar D4 4G9986 "Lil Lefty" Episode #94

[@OliverofAllTrades]

Cool Machine!

[@lifeafterourloss]

Thank you! We can't wait to get it done.

[@cherylf.6959]

Sure like starting my weekend with you two. Thanks for another good one!!

[@lifeafterourloss]

Thanks we appreciate the support of the channel!

[@jefflee1467]

Another great episode. I really enjoyed you showing all the details related to this fuel pump rebuild. Keep it up! Thanks.

[@raincoast9010]

Good morning!

[@lifeafterourloss]

Mornin! ☕

[@raincoast9010]

"Override spring", That got a laugh out of me!

[@gordonagent7037]

Hi Guys, love your attention to detail and the clean environment you always seem to maintain in the workshop and on your assemblies. One thing I have always been tremendously envious of about the states is your almost endless supply of donor machines and ready access to new/old stock and authentic cat parts, and the less said about all the specialty tooling well the better, I guess Cat is distinctly USA but it almost seems like when we imported machines to Australia and NZ we missed out on a lot of the Knick knacks hence we have had to become very creative in our own tooling, I know I have bastardised many good tools to get a job done so you’ll have to excuse my frustration when I see you use a tool with a cat number for the job. Guys, I’m really enjoying your channel, content is excellent, most of all it’s just so damn nice to see a Dad and his son share a common passion for old metal.

[@lifeafterourloss]

We really appreciate the kind words. As you get into the older videos we share your frustration in many cases, including the sprocket puller that we made. We got into the caterpillar hobby a little late to get a hold of many New Old Stock parts. But with persistence and knowing the right people to ask, sometimes they pop up. I spend quite a bit of time on eBay too. We're really glad that you're here. All the time I spent working in New Zealand my goal was to visit your beautiful country. Never found the time to do it. 😊

[@kriswright1022]

That was quite the technical project! Looks like you nailed it! 👍 Papa Grizz from nor Cal.

[@lifeafterourloss]

Thanks Papa Grizz and good morning to you sir! 😊

[@TomTeater]

Just love your videos, this so satisfies that interact detail that’s in me, when I was on the ship, I was the only guy trained to run the water distillation device. (Old school 1930’s tech) had four chambers vacuum, temperature, adj one chamber it affected the one before and after it.

[@lifeafterourloss]

Water distillation and desalinization is fascinating to me. When I was deployed to McMurdo Station that was where all the freshwater came from. As I'm sure you know it was several technicians full-time job to keep it running. I can only imagine how those four chambers affected each other it was a constant job of tweaking them all. 😊

[@lifeafterourloss]

Oh and thanks again Tom I'm glad you're enjoying the videos. We're hoping to meet you this fall when we get Lefty done. Fingers crossed the project continues at a good pace! 👍

[@cherylf.6959]

Thanks! Help out everyone...subscribing costs nothing

[@SuperMAZ007]

Fantastic job Aaron-n-cleaner. You nailed it right where it has to be, usually you need a stand to do this. But CAT allowed also other methods to set the pump timing and angle. Seen lot of high pressure fuel pumps where someone in there infinite wisdom. Removed the lift pump or left the plungers full open. Dose not take much rust to make the pump unusable in a very short time frame. Word of advice if you do leave a pump sitting in a shelf make sure the plungers are full of oil and sealed from the outside element. Same goes for the lift pump. I have noticed that CAT had different governor designs for the D4? I wonder why?

[@lifeafterourloss]

There's quite a few subtle differences between the D2 and D4. The fuel pump sat on the bench and we were a little worried to tackle them for a long time. Once we got the books and the knowledge they came together quite nicely. Hopefully they passed the real test which is a test run!