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Alright so after doing some more looking on the batteries, I see what the major difference is... the reserve capacity. The Optimas are significantly less. So, I'm thinking that going with the proper 6TL batteries will be my best bet. 6TL AGM batteries are way to much! NAPA has a 20% off coupon...

Thank you for the information!!! I was thinking of going with 4 Optima batteries & using the adapter plates so they will fit properly. Here's a link; http://www.realcustomtrucks.com/mobile/Product.aspx?ProductCode=2420046x4 What do you think? It has some note on the page about not using the...

Good thread. I just got my LMTV & this has a minor leak. Will start with taking it apart & seeing if it can just be cleaned up.

Are there any signs that the driveshafts aren't balanced? Will look up Awesomeness. Thanks!

Howdy, Going to start another one of my fix-up threads to document what I do to my recently purchased 1998 M1078 LMTV! Got it with the trailer for a very good deal. Drove it home with no problems except it being a slug compared to my Super Duty. Has ~11,500 miles. Overall very...

Where's the lie!?

You beat me to it coming here to post today. I just gave up & sold it to someone today for $200 to recover most of the money I had into it. It's gotta be an injection issue. I told the buyer that's what I thought it was. Turns out he has some M998's & other surplus stuff. Seemed a bit more...

That's a good idea, but I doubt it. Usually the started makes a very noticeable amount of noise if it was stuck. These motors are powerful enough to overpower the starter anyways. Since I have tried everything else, I am going to unbolt the starter & see if by chance that makes a difference!

I have had the crankcase open already as well as the head off. Everything looked extremely good, no issues that are obvious anyways.

Not on a hot engine. It would be really hard to do that because on these engines the adapter goes where the injector goes.

With the valve bonnet cover off, when I turn the engine by hand, on the compression stroke, I can here a faint amount of hissing coming from the crank case where the push rods come up. Is it possible that I do have a compression issue or am I just hearing the pressure build? Does the test gauge...

I replaced it with something that was close since I had no idea on a part number. I also did had to change the wiring. Found out the problem all along with that was that there was a diode in the starting circuit that rubbed through wire insulation under a shrink wrap. Had no idea the diode was...

Alright, so I went through the process to confirm TDC. According to my test, the TDC mark on the cooling fin was off by about 1/8 inch.. quite a bit. I marked it & adjusted everything off the new mark. Same issue... just chugs along & barley keeps running. I really want to just toss it in the...

Well, the 4 combinations of the injection pump shims I had made no difference. I noticed a bit of exhaust smoke coming out of the intake. Going to let the engine cool & check the valve clearance AGAIN. I'm going to go through the TDC confirmation process as well. It's possible that somehow...

Finally spent some more time on it now that I can do a compression test. Getting about 420 PSI. The manual says 460psi is the standard. Low limit of 365psi. These were done at 68 deg. It's probably 90 deg out, so that will make the psi drop. I'm within the limit on compression. So, this leaves...

I did try this & no luck. Was thinking maybe it was plugged up.

Looks like it could but I wouldn't want to take the chance. I edited the other post & by chance did find the correct adapter & purchased it.

Only for the kit from Yanmar, Kit # TOL97190080. EDIT: Always seems as soon as you give up, you then stumble on what you need; Kiene C-3086 https://www.kienedieseltools.com/product/27401/kiene-c-3086-compression-test-adapter

I have no way to do a compression check because the needed adapter is next to impossible to find. But, the engine start & runs, just doesn't get up to speed. Everything I have read on these small Yanmar engines, if you can't pull past the compression stroke that there's enough compression. :(