Set the tappets with the engine shut off . use the decompresser lever to release compression while turning engine over and release to adjust . there are 3 tappets to adjust . Intake. Exhaust . Compression release . If you cant turn the engine over with the fan , put the starting engine in gear and use the hand crank to turn the engine over .
One trick to sealing fuel injection lines that has worked for me is warping the line above the tapered seat with Teflon tape. The tape is acting as a spacer to let you push just a little more with the nut.
Be genital with the nut, it is the heavy hand that has been before that has stretched it out. So a just enough thing, none of that just a little more.
Further to GP's information, the steel collar and/or the seat can acquire imperfections which may be able to be mitigated with valve grinding compound. I used this approach for a couple of situations on my D2 (same concept is used for the fuel supply line from the tank but a larger diameter) but in one case, the compound wasn't enough so I replaced the socket with a new one. If you use the compound on the injector collars, I'd use a very fine paste so you don't "compound" the issue
Ya know---it sounded real good to me too! I was fascinated by quantum mechanics in college, but could never master it!!
Further to GP's information, the steel collar and/or the seat can acquire imperfections which may be able to be mitigated with valve grinding compound. I used this approach for a couple of situations on my D2 (same concept is used for the fuel supply line from the tank but a larger diameter) but in one case, the compound wasn't enough so I replaced the socket with a new one. If you use the compound on the injector collars, I'd use a very fine paste so you don't "compound" the issue
I appreciate all your input--The nuts are very tight--I just bought a set of brake line wrenches and with a hammer broke the nuts loose. Tomorrow I will look at getting the lines off the machine and if no cracks I might try the valve grinding compound, that sounds like it could work. My push rod is in at Cat, but now I ordered a set of nozzles so I may not get it running for another week. The engine could start better and I figure its cheaper to replace nozzle than have someone test them. My last question is--How far can I go down this rabbit hole?? Thanks
Judging by my experience with the 5U, the answer is "all the way"....
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