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Valve train noise

Posted: Thu Oct 04, 2007 10:53 am
by 6r8ph1X
I think I figured out something. When I redid the upper end of my motor, and put in new oil, it was dead silent running like a dream. Now after like 4 days it's starting to make a small amount of noise but not from the lifters. I was also reading how Fram oil filters are crap and thats what I was using. Actually I was using my old one and was going to use this oil as a flush for this week. Then replace it today. I'm definately going to return the shitty Fram filter I bought but havent used yet and get either a AC Delco or a mobil1 depends on funds. Don't Get FRAM!!!!  Can anyone confirm this?

Valve train noise

Posted: Thu Oct 04, 2007 5:20 pm
by Money pit Beretta
Where did you read that? I heard that the air filters are great for cleaning the air, but rob HP. I thought the oil filter was ok. I have used them on all my cars and have been putting them on my Beretta from 96 to date. I have put 100k on the 90GT since 96. If there is something wrong with the oil filters I would sure like to know.

Valve train noise

Posted: Thu Oct 04, 2007 6:08 pm
by 6r8ph1X
This is quoted directly from http://www.minimopar.net/oilfilterstudy.html


"Fram Extra Guard PH8A

This filter cartridge has a small outside diameter with a rather low filter element surface area (193 sqin), and features CARDBOARD end caps that are glued in place. The rubber anti-drainback valve seals the rough metal backplate to the cardboard end cap and easily leaks, causing dirty oil to drain back into the pan.  If you have a noisy valve train at startup, this filter is likely the cause.  The bypass valves are plastic and are sometimes not molded correctly, which allows them to leak."

I am getting back my piston slap sound that left when i put in fresh oil. Prob because i haven't changed the filter yet. I'm going to swich to AC Delco because of this quote

"The filter cartridge has a large outside diameter with deep pleats.  At first glance, it appears to have little filter element media, but the surface area measure was surprising: 315 sqin.  The unit had a solid top end cap because the bypass valve is at the bottom, which is a well constructed spring-loaded steel with a nitrile seal design.  The nitrile rubber diaphram-type anti-drainback valve doubles as the seal between the bypass valve and the cartridge.  The only drawback to this design is that the bypass valve seats metal-to-metal against the backplate.  This could allow oil from the clean side of the filter to seep back into the oil pan, but it wouldn't allow the dirty oil in the filter to seep back.  Oil that is in the main gallery usually leaks out through the main bearings anyway while the engine sits.  One disadvantage to the AC Delco is that the anti-drainback valve seals against a rough backplate.  I noticed that if I blow air through the oil outlet, air slowly leaks past the valve.  Even so, I have received testimonials that the AC Delco stops the valve train noise problems associated with the Fram filter, so it may seal fine once it has been exposed to oil (it worked fine for me).  The Wix and Purolator filters seal perfectly."

I got all the info from the previously stated site from the self study. I think the air filters are fine, thats what i have, but not the oil filters. Read some more if you want to. I did and I'm changin my oil later tonight.




Valve train noise

Posted: Thu Oct 04, 2007 6:46 pm
by Money pit Beretta
I saw the study, man that was a long read. I don't have any noise, but I will try a Delco on the next oil change. Thanks for the info.