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Old 12-08-2010, 08:51 PM
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Low oil pressure during cam break in

Prior to cam change my oil pressure was normal however during my cam break in oil pressure was 20psi ? Used valvoline 10/30 and Lucas break in additive. I'm going to change oil and filter and see if there's any improvement

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Old 12-08-2010, 09:03 PM
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Quote:
Originally Posted by truckboy61
Prior to cam change my oil pressure was normal however during my cam break in oil pressure was 20psi ? Used valvoline 10/30 and Lucas break in additive. I'm going to change oil and filter and see if there's any improvement
Sometimes there's a problem with filters. Use a premium filter such as Wix. If pressure does not come up, drop the pan and check for the pickup tube falling off or suckin' air.
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Old 12-08-2010, 09:21 PM
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As a matter of fact I used the " El Cheapo" fram filter just for break in figuring I would throw it away after break in !
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Old 12-08-2010, 09:46 PM
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Bingo.....
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Old 12-08-2010, 11:56 PM
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i prefer a premium filter and oil during break in to ensure full and proper oil flow. This is the most crucial time in an engines life to have oil. JMO
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Old 12-09-2010, 07:14 AM
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Napa gold oil filter with the anti-drainback valve is a good choice also. Being you live in Ca. you can try a straight wt. oil too or go up to 10w-40. I'm guessing you installed the cam on the old bearings, right?
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Old 12-09-2010, 09:36 AM
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Just the front bearing was changed rest are old ? Any reason?
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Old 12-09-2010, 11:07 AM
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Sometimes when your scraping the old gaskets and silicone off the metal surface, the gasket and silicone can fall into the old pan. Then it will get sucked up on the oil pump screen and can also reduce oil pressure. Not that this your problem. I just thought I'd throw it out there because it happened to me...
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Old 12-09-2010, 01:36 PM
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Quote:
Originally Posted by truckboy61
Just the front bearing was changed rest are old ? Any reason?
You wouldn't use old bearings on a new crank and new rods, would you?
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Old 12-09-2010, 03:17 PM
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Just front cam bearing it got scored when I was removing old cam so I swapped it out
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Old 12-09-2010, 07:15 PM
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when i installed my intake on my sbc i had a mishap. When I applied the rtv to the rails of the block I had a drop of silicone drop down in the oil sending unit hole. It took me a long damn time and pulling the engine out of the truck to find this out. I always make sure I plug the hole now when removing or installing an intake. I still had some oil pressure but it was very low. Did this possibly happen to you?
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Old 12-10-2010, 12:33 AM
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Possible just change gaskets ! Going to change filter and oil and see what happens then take it from there thanks
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Old 12-10-2010, 09:06 PM
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Quote:
Originally Posted by truckboy61
Just the front bearing was changed rest are old ? Any reason?
You can try all the quick and cheap fixes such as those suggested above, but my guess is this could be the culprit causing your reduction in pressure. Worn bearings, whether they be rod, crank or cam can reduce your pressure in a jiffy.
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