JD 955 needs an engine

[vollrathm]

My John deere 955 utility tractor need short block or entire engine if one can be found. Anyone know of used one out there? Its a Yanmar engine modle#3TNV84. This is a 3 cylinder diesel.

[Henri88]

[Mechanos]

If it's a V series engine... then I don't think it's original. I do not believe they ever used the V series in the x55 tractors. The engines that JD used were 3TN84RJ which I believe were of the E series. Not to say that the V wouldn't work... it's basically just an updated version of the same engine and I'm sure it would bolt right in. Just trying to help clarify to help in your search for a replacement block. I don't know how deep your pockets are, but a brand new short block can be had from Yanmar for about $3,200. I just got done rebuilding a 3TNE88 for my 955.

[Mechanos]

By the way... what is wrong with your current block that makes it scrap?

[vollrathm]

possibly could rebuild this engine but heavy knocking on bottom of engine now wont start. Though maybe someone could have used engine for reasonable price.

[buickanddeere]

May as well do an autopsy first. Never know what you may find. Could be just a clutch or balancer.

[Mechanos]

May as well do an autopsy first...

I agree. The old engine has to come out to put another one in... take it out and while you're looking around for another one, take it apart and see whats what.