- Thread starter
- #621
No start date on that one. Machining hasn't been done and no parts have been procured.
What Did You Do To Your Diesel Today (WDYDTYDT)
- Thread starter OGBeno
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
No start date on that one. Machining hasn't been done and no parts have been procured.
I’ll get on his case
Building an FT for a friend, noticed a broken piece of the upper aluminum cover of the timing belt. Part unavailable. I used high temperature aluminum epoxy and potted the missing part. Hope it holds. It’s just a dust cover.
Very cool repair!
- Thread starter
- #625
I don't think you need to do that. It's going to be summer before I can even build it. I have too many paying projects.
I initially posted this in another thread but no response. Wondering if anyone has insight. "My truck seems to be running fine but I am getting a big negative pressure issue and sucking sound when I loosen the metal fuel cap after any drive of reasonable length. I also checked the vent check valve and mine is also reversed with "to engine" facing toward the back of the truck toward the end of the vent tubing. I have read this vent line is for positive pressure but don't know for sure. I am wondering if anyone also has this issue and maybe it is supposed to be used in this (reverse) direction as this vent is more for positive pressure (think tank is hot and needs to vent pressure out). Maybe this valve is also used in another application where it is actually placed in the correct direction for which it is labeled. Can anyone confirm that has the knowledge?? Also, I am getting ready to clean out the filter for the fuel pickup as the author of this thread did but I really don't understand how this would fix a negative pressure issue as the fuel pump sucks fuel out of the tank. Doesn't the tank need to vent to atmosphere somewhere to replace fuel being taken out with air from atmosphere?? Although my truck is running well, I do worry about the extra strain of the fuel pump working against the developing increase in negative pressure and this is why I want to solve this issue. This is on a 90' HDJ81 with a gturbo and probably a tuned fuel pump. Initial thread was here.
Hahaha. We all do Onur. I miss you man. Come visit here. It’s warmer.
@OGBeno I could watch an engine being assembled all day long. It’s such a fine orchestration of parts all in harmony…my first engine rebuild was a single cylinder Briggs and Stratton 2 hp side shaft I built for a bicycle frame mini-bike in 1964, I was 11. When I put the rope on it and it started, I was awestruck. It turned into a life-long pleasure.
I hope you’ll video your initial startup….
I hope you’ll video your initial startup….
where did that head come from?
- Thread starter
- #631
Factory with new parts and machining.
- Thread starter
- #633
In service and still good
- Thread starter
- #634
These old engines are interminably difficult to build because so many parts are discontinued and you end up making do with sub-par parts and substitutions that work kinda “well.” You think you have all the parts and something doesn’t fit because of a supersession, or any number of contingencies.
It’s actually quite an awful undertaking, now having done these 40+ year old engines more times than I care to remember.
I tried to talk the customer out of it; I really did; it’s going to live in CO and it’s going to suck big time.
But, regardless, I’m here to do what I get paid to do.
A 1HD-T would have been much better and probably cost the same.
That said, it’s going to be a new heart with a rebuilt transmission and transfer case from Georg and it’s going to probably love life driving 55mph for the rest of its life.
55mph downhill?
Onur, they are lucky to have you do this.
I’m having similar problems with one of the 1HDFT. They only ran production for 3 years and some parts are just unavailable. If for example a timing cover brakes you have to start replacing a bunch of parts to replace with parts from 1HDFTE or 1HDT.
TIG weld the stainless downpipe. Always V bands. They are so much more reliable and easy to service.
Nove work!
I have those very pieces to put together for my 79. Not sure I am up for the full tig welding job. I may just tack it and hand the artwork over to more capable hands, lol
I stared at my spare 12h-t. Making plans
@OGBeno I truly hope that customer doesn't add a turbo to that 3B... all that hard work and it'd go "poof" (more like "boom"!).