Hello
First I will say very nice forum with many many nice and hopefully informations!
I`ve got an engine prob with my deuce and I hope somebody could help me.I need the meaning from a diesel engine specialist.Sorry my english isn`t perfect.
I bought the truck last week and drove is back home (about 140mls) The truck does not run since 1996.The army rebuilt the engine in 84 so it does not have run many miles.There was a problem with the injection pump no fuel output.So I cleaned them and put it back in the engine (think fuel shutoff rod also stucks in off position) after that engine runs and sounds good.Starts directly no smoke,e.g.,but it does not have so many power like normal.You only fell that at the highway.I drove hills at the highway with only 35mph and rpm does not went over 2200rpm in 5th gear.Injector pump timing should be right I ""thought"".After 90miles at the Highway the truck stops, engine knocks, no power, black smoke and goes out, all was okay, expect the power loss.It happens in 5seconds, before that all was fine.I tried to start after 10minutes but the engine was blocked nothings turn over....No I parted out the engine and now what the problem was but what was the release?One piston number3 was totally burned, fall into pieces at the head and stuck at the top.The release wasn`t the head gasket (not blown), water was okay, oil press ok, no oil in water or water in oil, cylinder sleeve was okay, piston rings where okay, bearings main and rod where okay, valves/timing okay. What created that heat, I thought something heavily brake the piston but there was nothing, this could also not produce that heat.I think wrong injection pump timing could do that????If the piston is at TDC and the injector opens before TDC, it will produce many heat fastly?Also loss of power can occur.Cylinder No 1 front must be also new because aluminum pieces from the third fall into the chamber and damges the sleeve/piston (because the are at TDC at the same time)The rod is bend from No.3., because it stuck at the top.It`s no problem to fix the engine, but I don`t know what created that, so I don`t want that it happens again with the new parts....Thank you all
You have asked a good question, I do not have the exact answer. Tiiming could be a factor. There is also a possibility that the piston oiler nozzle fell off the block and that piston was not being cooled properly. Look next to the crank on the side of the engine block and see if all 6 oiler nozzles are there and facing up toward the pistons. Good luck on rebuilding it. John T
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The older I get, the more I know I don't know, but how I love a Deuce
could an injector have stuck open and overfueled that hole? I also don't know what could have caused that problem.
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FATAL ERROR
Although the partitions were successfully created,
formatting of drive 2 failed
because copying of drive 1 to drive 2 failed
because copying of partition 1 failed
because directory failsafe.drv could not be copied
because directory failsafe could not be copied
because the file user.exe could not be copied
because there was a device error reading drive 1
absolute sector 223095 count 127
Yes, I have also the oiler tube in my mind and have not yet checked this, if the line is clogged....I don`t know how important is that oil line, but I think may be very important, M-engine design is nice, but the heat is a factor so they installed wet oiling sleeves.....Otherwise the piston was very hop at the top only and if the oiler was the problem it must be complete worn.All oiler nozzes sitting in right direction....How sensitive/damageable are the multifuels if the timing is not set properly?
If you had a timing problem, the other cyls would also have issues. This has to do with your low power problem you started out with. Was the engine missing when it was running? Were all the pushrods on the rockers when you took the engine apart? If the engine were overfueled, it would have been belching black smoke really bad.
Sorry about your headache. Wilkommen to the site by the way, looks like you have a nice collection of MVs as well as muscle cars!
PS, I have a serviceable piston and rod if you need it.
Fuel was new, full tank before I start, good diesel and a little amount of new hydraulik oil, no problem.Yes that is right, rebuilding wasn`t done done very good sometimes, 3 of the rocker arm gallery bolts where lose and the other not very tight....Don`t know, think was the normal rebuilt in the 80s...
First at NDT I will come back to you, I need 3 serviceable pistons and 3 sleeves and 1 rod, sleeve inner diameter are 116,0mm (1" = 25,4mm)so they are std.size?
Deuce multifuel engine damaged piston burned/ overheated!!
