robin 295 oil pump trouble

[hmmm@mindless]

ok long story short seized rod last summer replaced got bt 20 hours and then seized small side of cam in head ,replaced head took out spark plug cranked till oil was squirting from larger size of cam put valve cover back on started right up .
now seems to be running hot, look thru oil fill hole dont see oil pumping
im disgusted what could be causeing no oil flow to head ,those pump dont go bad do they ,what coud be wrong

[Spicyunicorn]

The oil pump cover can give you fits There was a guy on here awhile ago had issue of oil pump losing it's prime I believe it ended up being the oil pump cover was warped just a tiny bit... Hopefully he will jump in and confirm this

[Gearhead1956]

Originally Posted by hmmm@mindless

ok long story short seized rod last summer replaced got bt 20 hours and then seized small side of cam in head ,replaced head took out spark plug cranked till oil was squirting from larger size of cam put valve cover back on started right up .
now seems to be running hot, look thru oil fill hole dont see oil pumping
im disgusted what could be causeing no oil flow to head ,those pump dont go bad do they ,what coud be wrong

I bought a 96 ezgo with a 295 engine with a bad rod last winter. I was having oil pump issues with it after rebuild. Mine had a oil pressure light. It would loose its prime after sitting. I pulled it apart several times and could not find any reason why.
I ended up replacing the oil pump cover, a $19 on ebay. That solved my issue! I replaced it because the old one looked to be some what concaved when putting a straight edge on it. The new one came and was the same! BUT now its fine. go figure. I read it only takes 4 psi to keep the light off.

I tried lots of different things to now avail. Doing some research I did not see where many people, if any replaced the pump during rebuild or had any issue with oil pressure. But with a light they don't really know what they have!

I did not trust the light so for $20 I installed a automotive direct oil pressure gauge. Now I know for sure whats going on.

I did not care for the oiling system in this engine. The pump sits above the pan and has to pull oil up then pressurize it to oil the engine. Most pumps push or pull, this one has to do both.
Watching the new gauge, I can tell you at least on mine the oil pressure varies from 25 to 10 psi!! Don't care for that! Don't know if thats normal or not. But I now can see if the pump is working or not.

[Spicyunicorn]

Gearhead you're the one I was talking about knew you gas the issue just couldn't find the post I'd try the cover and go from there

[hmmm@mindless]

ok new pump cover im trusting u guys
but now *** thing starts runs good fer a min then quits had me baffled ,then i toook air filter off wam runnin great put it back on opp mot running take it off runs great



any thing ?????

[Spicyunicorn]

Pull the carb off and clean it pull get out make sure non are plugged blow air through them and through the passage in the carb and set valve lash to .004