fuel getting in crankcase

[stellaruthie]

Hello all,just bought a m52a2 multifuel 465 tractor,from gsa,it was used as a grass fire rig.When I picked it up they said it ran but leaked lots of fuel in the crankcase.So I pulled the head off the ip pump to replace the 2 seals in there and they look real good.also looks like the fdc has been bypassed already.Im wondering if there is something else that could be letting this fuel in the oil,thanks alot for your help.Jeff

 

[doghead]

Boost pump, on the side of the IP.(could leak into the oil)

 

[stellaruthie]

Is there any way to tell if the boost pump is the culprit?,thanks

 

[doghead]

I guess, I would pull it off and pressurise it and see if it leaks. I think the output side should provide 60psi of fuel pressure(iirc).

 

[gimpyrobb]

Is this the truck you wanted the ip head for? Not a whole lot to those pumps, basicly just 2 gears that mesh to boost pressure. If you think it would help, I can take some pics of an IP that has the booster pump removed. lmk

 

[stellaruthie]

no the head is for my 109,this is a m52a2 that I havent tried starting yet,because shes getting fuel in the crankcase,thought it would have bad looking o rings under the ip head but they look good?Guess I will just put new ones in and see how it works ,thanks for the help,and maybee if you can Chris send me that pic,thanks Jeff

 

[gimpyrobb]

I will post them here so others can see. Probably not till tonight or tomorrow though.

 

[WillWagner]

Does it still have a flame heater in the intake? That can do it too.

 

[stellaruthie]

thanks for the replys,never even crossed my mind about the flame heater,thanks

 

[stellaruthie]

update,installed new seals under ip head,now the idle seems to surge from 500 to 1000 rpms,any ideas,thanks

 

[stellaruthie]

bypassed,the flame heater,runs great now ,and no fuel getting in the crankcase,thanks alot for the help,and boy this 5 ton powersteering is so nice.