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By that comparison, yes. But you're comparing apples to oranges – gas engine to diesel engine. The sulfur found in diesel fuel and lube oil acts as a catalyst when in contact with aluminum and cast iron – and water. This would happen to any diesel engine, it's not a Jinma thing. You don't get this type of reaction within a gas engine.
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If these dozers came with decent rock guards and shields, none of that would have happened, so you have to be extra careful and watch for large rocks and logs getting jammed between the sprocket and track.
I would also pop that pinion bearing cover and inspect for metal particles.
Nice work btw.
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I think Northern and Circle G will be your best bets, aside from Yuchai directly. Yes, you have it right on the parts – all seals, gaskets, bearings, and shaft.
Thought you had one already. PM me your email address and I'll send you a PDF copy of the parts manual. Do you need the operator's manual too? It's as close to a service manual as you can get.
Just be glad it's not a big Cat, you would be up in the medium five-digit $ by now.
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Where does it say “barge”?
FWIW, the steel used in shipbuilding must comply with ASTM/ASME specification (ASTM A131 / ASME SA 131) which is the standard specification for Structural Steel for Ships, and must meet all classification societies standards as well, such as Det Norske Veritas (DNV) and American Bureau of Shipping (ABS).
This steel is shot blasted and primed before it leaves the mill.Account deleted.
I don't care what brand of engine you have, if you put water in the combustion chamber, freeze and thaw it several times, you will get a molecular reaction between the dissimilar metals known as corrosion which eats away at piston rings, pits cylinder liners, and turns aluminum into white mush. I've had to literally chisel pistons out of engines before because of that
A simple coffee can or bucket over the exhaust prevents that.
And you consider Chinese tractors not very forgiving? On the contrary, they are very forgiving considering the actions of some of their owners. But like any machine, they will only tolerate so much incompetence before they fail.
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If I understand correctly:
The tractor sat out in the weather over the winter without the exhaust covered and rain got into the cylinders and seized the aluminum pistons to the cast iron cylinder liners and you waited for spring to start it. There is no anti-freeze in rain water. Good luck. I've seen people down that road before.
And don't blame the tractor!
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Like Rich said, but another thing to consider is that these valves do not have load checks, so it could be either.
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Ok.
The tractor has two rear PTO’s.
1) Upper, full time, runs at engine speed, cannot be disengaged, flush tang drive. A CBN pump mates to this (no other pump will).
2) Lower, part time, two speeds (540/720 r/m) plus neutral, 1-3/8″ dia. six spline shaft. A Prince pump slips over this shaft.
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Without seeing actual pictures, I'm speculating that the pump you are referring to actually belongs to the backhoe, and is operated by the tractor's PTO. The hoses are not normally removed from these pumps and the pumps are normally removed along with the backhoe and stay with it unless you have one of the heavier built Prince pumps that merely slide onto the lower splined PTO shaft.
Have you checked the hydraulic oil level? There is a remote possibility that the pressure relief valve is stuck open by debris and just passing oil.
How do you know the pump is working?
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