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Old 04-05-2013, 08:43 AM
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572R Oil Pressure

I have a 572R I purchased new and have run it in my race car trouble free for three years. The oil pressure stayed on zero the last time I cranked it. I have tried three gauges, all zero. It goes to 20 psi when first fired up, but only for 1-2 seconds and then zero. It normally runs 70 psi at 1400 RPM. Does anyone know where I can get an oil flow diagram for this motor, or any late model big block Chevy? Any ideas?

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Old 04-05-2013, 08:50 AM
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Was the distributor recently reinstalled? There might not be contact shaft to oil pump .
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Old 04-05-2013, 11:05 AM
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oil pressre

Do not run the engine any more till you have taken down the oil pan and verify that the oil pick up tube has not fallen/broke off. bearing damage etc. you already know it's not the gauge.Had the pick up break free on one my race engine years ago and it was expensive!!!!
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Old 04-05-2013, 02:43 PM
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Quote:
Originally Posted by Edward5 View Post
I have a 572R I purchased new and have run it in my race car trouble free for three years. The oil pressure stayed on zero the last time I cranked it. I have tried three gauges, all zero. It goes to 20 psi when first fired up, but only for 1-2 seconds and then zero. It normally runs 70 psi at 1400 RPM. Does anyone know where I can get an oil flow diagram for this motor, or any late model big block Chevy? Any ideas?
Race car engine? 3 years trouble free? I'd say pull it and go through it! I build + race and go through them during the week to run the next week end let alone 3 years, You got a lot of life out of a race engine unless you haven't accumulated any hours on it over 3 yrs or 3 race seasons.

Jester
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Old 04-06-2013, 09:48 AM
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572 Oil Pressure

Spinn, No the distribitor has not been removed. Thanks,Edward5
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Old 04-06-2013, 11:00 AM
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Put a mechanical gauge on it, and turn the oil pump by hand with a priming rod.
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Old 04-06-2013, 01:33 PM
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Three yrs of racing and not freshen up??. You owe alot more to it than it owes you.Time to get yer hands dirty.
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Old 04-06-2013, 03:12 PM
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Guys, it could be three years of just driving it on and off a trailer. I would pop the pan off though and check the pump, pickup, and bearings.
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