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Old 12-31-2005, 11:50 AM
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Thumbs up Re: oil pressure problems from stock hardware

Thanks Smitty for starting this thread ! I'd like to add that the main oil passages can be drilled in the block as well as the intersecting oil passages , to give the mains more oil.
Also 3/4 groove H series bearings work well to provide a more continuous film of oil to the crank journals. Also a cross drilled crank provides better supply of oil. BBB

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Old 01-02-2006, 12:13 AM
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Default Re: oil pressure problems from stock hardware

Originally Posted by PatriYacht
I just had to bring this one back up. While I was working on my engines, I remembered that someone hed asked how to plug the oil bypass. I had this done at the shop that rebuilt my engines because this way all oil goes through the filter and cooler. I was told to watch my oil pressure gauges to make sure that the filter wasn't getting plugged. So far with normal oil changes, I haven't noticed any change in oil pressure. You can see from the picture it is a 20mm dia. freeze type plug driven in and staked in four places.

I did mine the same way.

Good thread Smitty.It will help a lot of people!!
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Old 03-07-2006, 10:11 AM
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Bump
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Old 03-07-2006, 11:27 AM
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Default Re: oil pressure problems from stock hardware

I am having trouble getting my oil temps up. I have bell housing coolers that seem to work too well. I can idle all day and the temp will not go above 140 degrees. At cruise it gets to about 180 degrees. I run cross overs with no water t-stat. Oil pressure runs about 70 PSI at cruise. Water pressure runs from 5 PSI at idle to about 18 PSI at cruise.

I have looked at several oil thermostats (PermaCool, Earls, Hardin, Merc, etc.). They range from $40 to $250 and all seem to do the same function. Any specific recommendations for marine use? Why?

Thanks,
Doug
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Old 03-07-2006, 11:45 AM
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Default Re: oil pressure problems from stock hardware

I used Permacools last summer but they require a ton of hoses and fittings. This year I'm switching to Earls sandwich type http://store.summitracing.com/defaul...h.asp&x=26&y=9 They eliminate a couple of the hoses and makes for a neater installation.

Last edited by PatriYacht; 03-07-2006 at 11:50 AM.
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Old 03-07-2006, 11:58 AM
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Default Re: oil pressure problems from stock hardware

Originally Posted by waterbum
I am having trouble getting my oil temps up. I have bell housing coolers that seem to work too well. I can idle all day and the temp will not go above 140 degrees. At cruise it gets to about 180 degrees. I run cross overs with no water t-stat. Oil pressure runs about 70 PSI at cruise. Water pressure runs from 5 PSI at idle to about 18 PSI at cruise.

I have looked at several oil thermostats (PermaCool, Earls, Hardin, Merc, etc.). They range from $40 to $250 and all seem to do the same function. Any specific recommendations for marine use? Why?

Thanks,
Doug
It seems like one solution would be to run a water t-stat in conjunction with a water pressure relief valve. This would stabilize your water temp and probably raise your oil temps.

I would recommend a sea strainer also if you go that route
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Old 03-07-2006, 12:32 PM
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Default Re: oil pressure problems from stock hardware

A lot of supercharger engines run wihout water thermostats to help control detonation. They work fine with the addition of an oil thermostat.
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Old 04-05-2006, 04:31 PM
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Default Re: oil pressure problems from stock hardware

ttt Time to bring this back up.
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Old 04-20-2006, 07:02 AM
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Default Re: oil pressure problems from stock hardware

Originally Posted by PatriYacht
I used Permacools last summer but they require a ton of hoses and fittings. This year I'm switching to Earls sandwich type http://store.summitracing.com/defaul...h.asp&x=26&y=9 They eliminate a couple of the hoses and makes for a neater installation.
Witch one of Earls sandwich style oil thermostat will fit mercruiser remote filter adapter. There are 2 different # numberer's only one fit Chevy, but not 454 Cui?
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Old 04-24-2006, 06:41 PM
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Default Re: oil pressure problems from stock hardware

Anyone using the revolution marine oil cooler?
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