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View Poll Results: Could a spike in oil pressure cause the filter gasket to blow?
Yes 2 20.00%
No 2 20.00%
Only if the filter was installed improperly to begin with 5 50.00%
Under what circumastances? PM me, please 1 10.00%
Multiple Choice Poll. Voters: 10. You may not vote on this poll

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Old March 19th, 2006, 12:22 PM   #1
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Default Oil Pressure? Poss COURT documentation

Have you ever had an instance of an EXTREME spike in oil pressure, enough to blow the gasket of your oil filter (assuming it was installed properly)?

The basis of my question can be found at search query "Damsel in Distress"

any and all feedback will be greatly appreciated. If this goes to court, the numbers will really help...
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Old March 19th, 2006, 01:16 PM   #2
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I was having this discussion yesterday and it was brought up about some old cars that me and friend owned, he accually blew one up on a ford 390, it was so sludged up it was pumping mud. it over came the oil presure by pass by being to thick to open the valve.
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Old March 19th, 2006, 02:39 PM   #3
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What do you consider EXTREME? If it was installed properly, it would take alot of pressure to blow the gasket. If it was installed improperly, it wouldn't take much over normal (40-60 psi).
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Old March 19th, 2006, 02:48 PM   #4
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Quote:
Originally Posted by GreaseMonkey
If it was installed properly, it would take alot of pressure to blow the gasket. If it was installed improperly, it wouldn't take much over normal (40-60 psi).
Thats what I am hoping to determine. The lube shop tells me that the gasket failed due to a spike in my pressure. I'm thinking the pressure wouldn't get up that high if it was installed correctly. Besides this is the same place that did the change just 3,000 earlier, no sludge... I think my oil pressure was likely fine, but that the gasket gave way at maybe 45psi cuz it wasn't on properly to begin with. But then again, I'm not a mechanic, so I was hoping to hear from you gurus...
If installed properly, what would it take to blow that gasket? It was neither double-gasketed nor stripped, best we can tell...

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Old March 19th, 2006, 02:52 PM   #5
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who makes the filter? Email them for testing specs on thier filters to see what they will hold up to.
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Old March 19th, 2006, 02:55 PM   #6
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It could be a gasket or filter defect, but installed properly the pressure would have to spike pretty high, probably more than what the engine oiling system is capable of. Seeing what vehicle the oil change was done on helps...they're a big PITA to change the oil filter. I'm betting that they just didn't tighten it down enough...plain and simple.
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Old March 19th, 2006, 02:56 PM   #7
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It was reportedly tested at 100 psi and held up just fine,though they acknowledged the discrepancy in the seal... said there was a spike that must have caused that, but for them it performed "within an acceptable range."
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Old March 19th, 2006, 03:01 PM   #8
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Quote:
Originally Posted by GreaseMonkey
It could be a gasket or filter defect, but installed properly the pressure would have to spike pretty high, probably more than what the engine oiling system is capable of. Seeing what vehicle the oil change was done on helps...they're a big PITA to change the oil filter. I'm betting that they just didn't tighten it down enough...plain and simple.
Thats the kind of feedback I am hoping to acquire thru the poll... yeah, like my engine could generate enough to blow that gasket? I really don't think so. I too, think it wasn't tight, but will have a difficult time proving it in court. UNLESS i can determine that its the only way the gasket would have blown (because it wasn't tight) in which case, it wasn't an excessive amt of pressure (i.e. My fault) but rather standard operating pressure that blew it. Cripes, I was doing 30 mph (~2500 rpm) down a local street when it went. I think they are messing with me cuz Im a girl!
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Old March 19th, 2006, 04:43 PM   #9
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Quote:
I think they are messing with me cuz Im a girl!
thats what I'm thinking.
if you can get the brand name of the filter please post it so as everyone can do some searching on specs. I am betting the filter could have easy held back 150psi without bursting the seal or the can.
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Old March 19th, 2006, 05:10 PM   #10
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Yea, if the thing was installed properly, enough pressure to blow the seal should have deformed the can of the filter.

Now on old old engines, they used to blow filters off, but on these new fangled things, the bypass system is way better. It would take quite a bit of pressure to blow a seal off a properly installed filter.

I bet they double gasketed it.
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Old March 19th, 2006, 05:21 PM   #11
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Quote:
It was neither double-gasketed nor stripped, best we can tell...

you missed that Tim
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Old March 19th, 2006, 07:08 PM   #12
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I was assuming that it was the oil change place that said it wasn't double gasketed...must be wrong. Sorry if i'm wrong.
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Old March 19th, 2006, 07:23 PM   #13
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It was a Purolator, marketed for the Quaker State franchise of Fast Trak. QS 3614. When the filter was tested, they sent me some silly little letter with techno-jargon but without any real specs and/or variances, which is what I had expected... when the filter came off, there was no evidence of an old gasket melded to the block. They say some surge in pressure cause it, and likely they know that with a rod knock, I can't possibly, definitively, determine that it WASN'T my engine.

Its been a long week, and a longer 6 weeks without my daily driver. The dune climber gets me where I'm going, but its not the same ride. I sure appreciate the encouraging words. Just three days ago I thought I was going to eat the price of a 3.4 conversion... *whew!
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Old March 19th, 2006, 07:53 PM   #14
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i know when my buggy runs it leaks just a little amount of oil but when it is off it doesn't leak any oil
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Old March 19th, 2006, 08:34 PM   #15
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To get a oil pressure spike, the pressure relief valve in the oil pump would have to stick shut. This is possible, but very uncommon. I have seen pressure relief valves stick, and peg a 300psi gauge, but it is pretty rare for this to happen. Usually, these valves stick open, and you loose oil pressure instead of increasing it. If the valve stuck shut, sometimes it will blow the oil filter gasket, but not always.

Based on your description, I would bet they had a double gasket on the filter. Sometimes the gasket from the removed filter will stick to the block, and the new filter is installed over it. This happens a lot in oil change places and they almost always leak.
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Old March 19th, 2006, 10:13 PM   #16
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Yea but to have it spike like that, you would have to have 2 things happen...the pressure relief valve stick AND have some kind of restriction in the system to cause the buildup of pressure.

and vwman.....

Quote:
i know when my buggy runs it leaks just a little amount of oil but when it is off it doesn't leak any oil
WTF? STFU
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Old March 20th, 2006, 01:55 AM   #17
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Quote:
Originally Posted by vwman
i know when my buggy runs it leaks just a little amount of oil but when it is off it doesn't leak any oil
You better watch it if u ever take that speed machine to the track they frown on you dumping oil.. Expecially if you're goin in the 12's !
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Old March 20th, 2006, 02:44 AM   #18
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Quote:
Originally Posted by vwman
i know when my buggy runs it leaks just a little amount of oil but when it is off it doesn't leak any oil

what the hell does that have to do with anything. besides everyone knows your buggys a pile of shit and it probily aint no speed machine. i say jsut shut the hell up about the damn pos cuz me and everyone else is tired or hearing about your fuckin hunk of shit
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Old March 20th, 2006, 06:41 PM   #19
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Like what was already said, this is highly unlikely. Oil pressure in a motor doesn't just "spike" without something going wrong. And for your filter to see that pressure 2 things must fail. The first (already meantioned) is the oil pump bypass. I have never seen them fail closed, but always open. That oil pump bypass is generally always open some letting oil bypass the oil galleys (and go back into the sump), except for at idle. Secondly, the OIL FILTER BYPASS must have failed as well. This device keeps your oil filter from becoming over pressurized when it becomes pluged. Seeing as it was a new filter and it was not pugged this shouldn't have been the case. Hope all works out for you.
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Old March 21st, 2006, 06:47 AM   #20
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Quote:
Originally Posted by shawn
Oil pressure in a motor doesn't just "spike" without something going wrong.
I am maintaining that the pressure likely didn't spike at all, but was operating at regular (what? 25-40psi?) pressure and that the filter wasn't tight. Cuz it didn't blow at 100psi for them, but it blew at 30psi for me. And no double gasket, either.

*what a pain...
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