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Water in oil from gas?

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Old 09-27-2020, 04:36 PM
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I would pull the filter and dump it in a jar. I bet it has water in it.
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Old 09-27-2020, 04:44 PM
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We had a pair of manifolds that reverted and the oil in the heads looked just like yours. Best of luck.
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Old 09-27-2020, 05:22 PM
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Originally Posted by Ryanw10
Since starting the motor we have seen 40 degree temps and 80 degree temps here in holland. Ran it one more time on the external tank with the valve over off and got a picture of the oil. Dipstick still is at the same level and oil on it looks like brand new.
that will drain to the pan eventually and all of it will become that color, you might have a small leak in the oil cooler ?
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Old 09-27-2020, 06:09 PM
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That’s not condensation. You have reversion or a leak.
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Old 09-27-2020, 08:46 PM
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If you have the bow of your boat pointed down the driveway sometimes that angle can cause reversion. It wouldn’t be the first time that’s happened here.
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Old 09-28-2020, 06:42 AM
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Thanks for the replies everybody. When I had the block at the machine I did not give them the manifolds to pressure check, I just visually inspected for rust trails so that is a possibility. I pulled all plugs last night though and none were wet. I also this morning went back through my gasket set and read through the instructions again, I did not put any thread sealant on the timing cover bolts or water pump bolts and my instructions are saying some of them should have it?
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Old 09-28-2020, 07:04 AM
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The cam in the motor is also not stock. I dont have the specs off the top of my head but when I get back to my shop I can get the specs. I believe it is the 383 ramjet cam.
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Old 09-28-2020, 07:31 PM
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shouldn't that engine make more than 30psi oil?
What is the spec?
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Old 09-29-2020, 01:41 AM
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Originally Posted by PA.WOODCHUCK
shouldn't that engine make more than 30psi oil?
What is the spec?
The 350 in my power play makes 40 psi all day long. I believe spec is a minimum of 4 psi at idle and 30-60 psi 2000 rpm and more. I have read s rule of thumb of 10 psi per 100 rpm

Edit:
Oil pressure on this motor is definitely an issue that I'm working on addressing.

Last edited by Ryanw10; 09-29-2020 at 07:31 AM.
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Old 09-29-2020, 07:32 AM
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Here are the cam specs

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