Who was it who mentioned Fram oil filters and dropping oil pressure?
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From: nm5k on 22 Nov 2009 21:20 On Nov 22, 4:25 pm, Hachiroku $B%O%A%m%/(B <Tru...(a)e86.GTS> wrote: > Who was it in the Subaru group that mentioned my low oil pressure might be > caused by my using Fram oil filters? It's a known problem on the orange Fram filters. The problem is the anti drainback valves don't work. How much it effects the engine will depend on the filter mounting and position. I have two old Ford trucks, both with straight six engines. "300 and 240". You cannot use those Fram filters on those engines unless you like starting up with no oil pressure. I knew about this before trying one, but I happened to get one free, so decided to try it. At first I thought it was ok. But I came back three hours later to go to the store and had no oil pressure. And this is on a fresh rebuilt engine with a new oil pump. Not some wore out beater. I couldn't get pressure, so i cut it off. Then I tried it again and finally got pressure going. I dumped that filter right there on the spot and replaced it with a Motorcraft FL1A which is what I normally use. Never had the problem again. I wouldn't use one of those filters if it were free. Total junk as far as the anti drain valves. I wouldn't use one on any other car either just due to the problems I had, no matter if the mounting position was a problem or not.
From: dsi1 on 22 Nov 2009 21:25 hls wrote: > > "dsi1" <dsi1(a)spamnet.com> wrote in message > news:r2kOm.28472$cd7.12136(a)newsfe04.iad... > >>> >>> I have never had a problem with a Fram, but I have pussed out and avoid >>> them strictly on their reputation. >> >> Couldn't this also have meant that the filter may have been >> restricting the oil flow i.e., clogged up? Just guessing. > > It could mean a lot of things. Remember he changed both the filter and > the oil > on this car, and measured the results with a rather inaccurate gauge. My question is: is it possible to increase the oil pressure reading at the sender by installing a filter with a high resistance to oil flow? Might it be that a drop in oil pressure may not be a bad thing if it is the result of installing a oil filter that allows more oil to be filtered? Again, this is just a guess - I've never read anything about this. > > There are a lot of variables here. > > If he wants to eliminate Fram from the equation, change to a Wix, or > something else, > as he suggested. > > Now, going back to the OP, he apparently just picked up this higher > mileage vehicle. > How do we know what the seller added to the crankcase? > > He will just have to work through this item by item,and I hope he will > post the results
From: Daniel Who Wants to Know on 22 Nov 2009 21:39 Put a Wix 51515 on it and you won't have a problem again. Daniel Bought a 95 Grand Caravan SE 3.3l with 223,000 miles on it for $800 and immediatly changed to a 51515 and Mobil 1 5w30 non-EP. I have 10k miles of my own on the van now and the engine is still going strong.
From: Hachiroku ハチロク on 22 Nov 2009 22:10 On Sun, 22 Nov 2009 20:39:11 -0600, Daniel Who Wants to Know wrote: > Put a Wix 51515 on it and you won't have a problem again. Let's see if I can remember that number! ;) > > Daniel > Bought a 95 Grand Caravan SE 3.3l with 223,000 miles on it for $800 and > immediatly changed to a 51515 and Mobil 1 5w30 non-EP. I have 10k miles of > my own on the van now and the engine is still going strong. When I changed the oil and started the engine, there was what sounded like a bottom end knock in it... I went for a 5 mile ride and the sound went awat...Thank You! Whew! I had a Gr Voyager w/279,000 miles on it. It had had the trans replaced under warranty and never had a problem with it, excep the guy who gave it to me wanted it back! He ran it up to 324,000!!!
From: 1 Lucky Texan on 23 Nov 2009 08:44
On Nov 22, 6:08 pm, "hls" <h...(a)nospam.nix> wrote: > "dsi1" <d...(a)spamnet.com> wrote in message > > news:r2kOm.28472$cd7.12136(a)newsfe04.iad... > > > > >> I have never had a problem with a Fram, but I have pussed out and avoid > >> them strictly on their reputation. > > > Couldn't this also have meant that the filter may have been restricting > > the oil flow i.e., clogged up? Just guessing. > > It could mean a lot of things. Remember he changed both the filter and the > oil > on this car, and measured the results with a rather inaccurate gauge. > > There are a lot of variables here. > > If he wants to eliminate Fram from the equation, change to a Wix, or > something else, > as he suggested. > > Now, going back to the OP, he apparently just picked up this higher mileage > vehicle. > How do we know what the seller added to the crankcase? > > He will just have to work through this item by item,and I hope he will post > the results Yeah, I think there are too many variables to know for sure. While I DO believe there are filters with no/bad anti-drainback valves(and other issues) - I just don't see how a filter could cause abnormally low oil pressure. As a further odd-ball failure mode, consider that new oil and/or 'disturbing' an old and possibly neglected lubrication system could have dislodged some debris that is stuck in the oil pressure sender's orifice. I had this happen once on an old mitsubishi/Colt Vista engine (IIRC) . The after market sender had a much larger orifice. The OEM was 'maybe' a millimeter ! |