Ed's 77 Terex 72-41

[mountainguyed67]

Is there a tag on the side of the valve cover? Detroit was good about giving you all the special option information there if some one had not removed it!

There is something. I noticed it while pressure washing, but didn’t look at it once I had the valve cover off. The throttle bracket conceals it when in place.

 

[mountainguyed67]

Here's a link to one I saw on Flesbay:
https://www.ebay.com/i/261148912702?chn=ps&mkevt=1&mkcid=28

While at that link I saw this pic. It shows the gauge in use.

https://www.ebay.com/itm/3350-Injec...IOnTopCombiner&_trksid=p2047675.c100752.m1982

 

[kshansen]

While at that link I saw this pic. It shows the gauge in use.

https://www.ebay.com/itm/3350-Injector-Height-Gauge-Kit-Fit-for-Detroit-Diesel-Engine-J-39697-J42665/164140174456?_trkparms=aid=555021&algo=PL.SIMRVI&ao=1&asc=20190711100440&meid=79fb95a3f6d74cf7a47dffe1d4299a66&pid=100752&rk=2&rkt=12&mehot=co&sd=261148912702&itm=164140174456&pmt=1&noa=0&pg=2047675&algv=SimplRVIAMLv5WebWithPLRVIOnTopCombiner&_trksid=p2047675.c100752.m1982

I just can't see paying $40+ for that little piece of steel! Especially for a one time job or just to do a quick check of the adjustment. But if you can find out which one you do need there is a good chance you can, with a little searching, find one online for 1/3 or 1/4 of that price. I'd have to check if I still have any in my tool box. If I have the size you need I could be very reasonable!

 

[mountainguyed67]

The book calls for J-8932-01 tool for the fuel line nuts, it doesn’t come up in a search. But J-8932-B does come up. Close enough? Or is this the wrong section.

 

[mountainguyed67]

I just can't see paying $40+ for that little piece of steel! Especially for a one time job or just to do a quick check of the adjustment.

I have 6” dial calipers with depth base, might fit in there with the base. It keeps it square.

 

[mountainguyed67]

From the manual. One was too big to load.

 

[mountainguyed67]

More.

 

[mountainguyed67]

I’m trying o get familiar before I go back up.

 

[mountainguyed67]

These are from the valve and injector section.

 

[kshansen]

The book calls for J-8932-01 tool for the fuel line nuts, it doesn’t come up in a search. But J-8932-B does come up. Close enough? Or is this the wrong section.

That socket is not really needed for removing the line but is handy when tightening then to the correct torque. Then again if one has a good feel for tightening things you can get away with just using a 1/2 inch open end wrench. If by chance you have a 1/2 inch crows foot socket or 1/2 inch flare nut socket you might be able to get that in there.

I did find the one timing tool I have for setting the injector height not sure which you need but I'm thinking this is not the one for your engine. The one I have is the J-1242 which is 1.484 inches. But you need to check which injectors you have and see what your manual calls for. If there is a tag on the valve cover it may have information there that could help.

Just for fun before you pull any injectors I would try measuring where yours are set right now. Beware you need to check them with the valves open!

 

[mountainguyed67]

I’m not sure the manual has specs specific to the 4 cylinder, I haven't got that far.

Is the reamer necessary to remove carbon?

 

[Bluox]

I’m not sure the manual has specs specific to the 4 cylinder, I haven't got that far.

Is the reamer necessary to remove carbon?

No just use a rag on a wire brush.
If you get the number on the injector tag I can tell you the height but you still need to measure it.
Bob

 

[kshansen]

No just use a rag on a wire brush.
If you get the number on the injector tag I can tell you the height but you still need to measure it.
Bob

Yes, I would want to actually measure it on all cylinder to compare them!

As for the manual not having the 4 cylinder spec's if it's an inline manual they should be in there actually they might not list them separately for the numbers of cylinders as that should not be any different, just need to know if it's a two or four valve engine and the injector number. I think I recall the color of the tag may be important info too!

 

[mountainguyed67]

As for the manual not having the 4 cylinder spec's

I’m thinking it does, I just haven’t got to that part yet.

 

[mountainguyed67]

I’ve got these, and my son is going with me next time. He can turn it. Can’t get a ratchet and socket in there, the fan cage is too close.

 

[Bluox]

If you are going to fool around with the injectors make sure the air shut off on the blower is free and works so you have a chance to stop a runaway.
Bob

 

[mountainguyed67]

If you are going to fool around with the injectors make sure the air shut off on the blower is free and works so you have a chance to stop a runaway.
Bob

It is, I checked recently.

 

[mountainguyed67]

Everything’s good up top, this is the non firing cylinder.

 

[mountainguyed67]

 

[mountainguyed67]

Anybody know what bell housing type this is?