how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Bondo

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

how to 1989 OMC v8 5.7 inboard engine oil pressure control?
thank you

Ayuh,... Welcome Aboard,.... So what's the Problem,..??

Oil pressure is controlled by internal motor clearances, 'n the condition of the oil pump,...
 

ssashy

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Ayuh,... Welcome Aboard,.... So what's the Problem,..??

Oil pressure is controlled by internal motor clearances, 'n the condition of the oil pump,...

The problem is too high oil pressure:
Min turnaround - 4
Max turnaround - 6

How I can controlling it?

Thank you
 

Bondo

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

The problem is too high oil pressure:
Min turnaround - 4
Max turnaround - 6

How I can controlling it?

Thank you

Ayuh,... So far, yer makin' absolutely No sense,....

Just What is the above quote supposed to mean,..??

oil pressure is expressed in PSI,....
 

ssashy

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Ayuh,... So far, yer makin' absolutely No sense,....

Just What is the above quote supposed to mean,..??

oil pressure is expressed in PSI,....

on minimal engine speed oil pressure is 4 PSI, but on maximal engine speed oil pressure is 6 PSI
 

Redrig

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Pressure should be much higher than that, otherwise your engine is toast if it is really that low.

What kind of gauge are you using ? also what is the weight of the oil that is in the engine ?

is the gauge maybe a 40 - 60 psi range ?
 
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ssashy

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Pressure should be much higher than that, otherwise your engine is toast if it is really that low.

What kind of gauge are you using ? also what is the weight of the oil that is in the engine ?

is the gauge maybe a 40 - 60 psi range ?

oppss sorry.. it was kg/cm2

4 kg/cm2 = 56.9 psi
6 kg/cm2 = 85.3 psi

but main quetion is, how I can conrolling the pressure ?
 

Redrig

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

but main quetion is, how I can conrolling the pressure ?


what weight oil is in it now ? when you took those readings was the engine cold , or was that after running for a while?
 

ssashy

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

Ayuh,... So far, yer makin' absolutely No sense,....

Just What is the above quote supposed to mean,..??

oil pressure is expressed in PSI,....

can you help find e-book OMC V8 5,7 1986 ?

thank you
 

ssashy

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

what weight oil is in it now ? when you took those readings was the engine cold , or was that after running for a while?
10w 40 semi syntetic
this reading is all time cold or warm engin

but on second engine is that reading: 2.5 and 4 kg/cm2
 

Bondo

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Re: how to 1989 OMC v8 5.7 inboard engine oil pressure control?

10w 40 semi syntetic
this reading is all time cold or warm engin

but on second engine is that reading: 2.5 and 4 kg/cm2

Ayuh,... Is this a new to you boat,..??

Has the oil pressure always been at this point,..??

How about some back story, History on the issue,...

Oil pressure is controlled by internal tolerances within the motor, 'n ain't adjustable,...
 
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