Bending push rods

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May 29, 2005 | 10:13 AM

#46

Kwikkordead

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Joined: Jun 2004

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From: Rio Rico, AZ.

Quote:

Originally Posted by Wellcraft

Is there 2 oil systems.. Low and high???????????

Not on an IDI engine. The HPOP is for driving the injectors on the DI motors.

May 29, 2005 | 10:43 AM

#47

barebackjake

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From: STEPHENVILLE,TX!!!!!

the low pressure system is the lube system which feeds the lifters

the high pressure system only operates the injection system.

did you replace the hold downs for the lifters also??

5.7kg sounds about good on the oil pressure where are the senders at???

i would be suspect of the oil pressure relive valve also. you can take it apart and look at the bore to see if its scored or a groove wore in it or if theres a chunk of crap stuck in it.

May 29, 2005 | 10:47 AM

#48

barebackjake

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From: STEPHENVILLE,TX!!!!!

oh this is on a IDI motor???

hmmmmmmmmmmmmm still think the pressure relive valve. its mostly only doing it to exaust valves timing gears??? i bet thats been covered....

May 29, 2005 | 12:32 PM

#49

cookie88

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Joined: May 2001

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From: Cabot, Arkansas

Quote:

Originally Posted by Wellcraft

Is there 2 oil systems.. Low and high???????????

The engine have 2 oil pressure gauges on it.. One reads 5,7 kg and the other one is reading 2,7 kg

We didnt clean anything.. It looks like unused inside the engine.. But what we cant see??? Dont know.

Thinking of the oil pressure bypass valve sitting in the block left side on top. Can this be cleaned??

Here is a picture. Parts from 14 tru 18

That's not a bypass valve. It's an anti-drainback checkvalve that prevents the high pressure oil reservoir from draining. If it were bad the engine wouldn't start. I don't think the lube oil system is the problem. I think it's defective hard parts, either the lifters or the rocker arm and I'd put my money on the rockers.

Also, from an earlier post, the copper colored ends of the pushrods go up, and the engine needs to be rotated until the mark on the crank damper is at 11 o'clock for rocker arm installation to prevent bending valves.