150 four stroke excessive oil pressure

[anhue]

i replaced one piston (broken skirt) and main bearings in f150c, now i have so much oil pressure it blows the seal out of the oil filter. about 120lb. anyone know why so much pressure.

 

[Silvertip]

Re: 150 four stroke excessive oil pressure

Incorrect main bearing assembly that has blocked an oil passage perhaps. Stuck pressure relief valve in the oil pump.

 

[anhue]

Re: 150 four stroke excessive oil pressure

installed new relief valve. took mains apart and rechecked,all good. should the relief valve relieve any excess pressure

 

[anhue]

Re: 150 four stroke excessive oil pressure

installed new relief valve still blows seal out of oil filter

 

[Triton II]

Re: 150 four stroke excessive oil pressure

Within the oil filter core there's a pressure relief "button" valve that should allow the oil to bypass the filter, especially when cold. Have you changed the oil filter itself? If so it may be worth trying another one to ensure that the bypass works, otherwise it will blow the seal.

 

[zarathustra12001]

Re: 150 four stroke excessive oil pressure

did you ever resolve this I am in exactly with an engine that was just returned from rebuild. please help

 

[Don S]

Re: 150 four stroke excessive oil pressure

Welcome aboard zara.
Best to start a new thread of your own. Not post your problem at the end of someone elses problem.
include your engines full model number and details on your problem.