shortie
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| posted on 10/8/05 at 09:00 PM |
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Oil filter tightness
Noticed today that there seems to be a small oil eak that seems to be coming from the oil fiter seal, how tight should the oil filter be tightened,
maybe there is a torque figure somewhere but I haven't got an oil filter spanner torque wrench!!
ta,
Rich.
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Jon Ison
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| posted on 10/8/05 at 09:07 PM |
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when i fit mine i lubricate the "O" ring with clean oil and just tighten it "hand" tight, may be wrong but works for me.
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ChrisGamlin
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| posted on 10/8/05 at 09:22 PM |
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Yep tight hand tight is all thats needed, put on a latex glove to do it up a bit tighter if necessary but have never had to use a spanner etc on any
filter Ive fitted.
To make sure it doesnt come undone, a good way is to put a large jubilee clip over it (or two joined together). Sometimes you can find an angle close
to the block where the jubilee clip head would jam up stopping the filter undoing. If not just lockwire the jubilee clip to something on the engine.
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nanosleep
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| posted on 10/8/05 at 10:05 PM |
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My rule is to get the filter as tight as I possibly can BY HAND. This gets it tight enough to avoid leaks, but not so tight that I can't remove
it with a filter wrench. I never tighten the filter with the wrench. Otherwise you may be removing the filter with metal shears and a chisel.
Get a quality filter wrench. Channellocks work, but usually crush the filter.
I also wipe some oil on the o-ring before installing.
Also be careful the old o-ring isn't stuck to the block. I did this once. A few days later the oil pressure pushed the block-side o-ring out.
There is nothing holding the block-side o-ring, only clamping force. The result was oil spray all over my exhaust manifold and a loss of oil
pressure. I quickly pushed in the clutch and killed the engine. Luckily nothing was damaged and nothing caught fire. You can be sure I check for
this error religiously now.
-Andy
2000 Mustang GT
2003 Mustang Cobra 450RWHP/450RWTQ
2004 ZX-10R
In progress: 67 Mustang with 520ci(8.6L) V8, 600HP estimated
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Rorty
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| posted on 11/8/05 at 06:37 AM |
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quote:
Originally posted by ChrisGamlin
... If not just lockwire the jubilee clip to something on the engine...
...like the sprocket! (self tightening) 
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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britishtrident
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| posted on 11/8/05 at 07:31 AM |
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Many a happy hour I have spent chiseling a spin on oil filter off off because some well intentioned person (!) has over tightened it.
Gentle but firm hand tight enough to prevent leaks and NO MORE. They don't slacken off, in fact they get tighter because the sealing ring
swells due to the effect of oil on the rubber.
With older style paper cartridge filters the trick is not to renew or disturb the sealing ring unless it is already leaking.
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Rorty
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| posted on 11/8/05 at 09:14 AM |
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I think some people buy those filter wrenches to tighten the filters on. I know I've failed to remove filters on occasions with one of
those wrenches, and had to resort to hammering my BOS (Big Old Screwdriver) through the filter to use as a tommy bar.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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shortie
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| posted on 11/8/05 at 09:22 AM |
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So based on what I am hearing, it's worth me draining the oil, removing the old filter, replacing with a new one (smearing oil on sealing ring)
and only doing it hand tight which should solve the leak.
Is an overtight filter likely to cause a leak?
Rich.
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David Jenkins
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| posted on 11/8/05 at 09:58 AM |
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quote:
Originally posted by shortie
Is an overtight filter likely to cause a leak?
It is if you distort the can, or squeeze the rubber ring so much that it squishes out of the area of the join. It's also worth wiping the area
where the rubber ring sits to ensure that it's clean before you screw the new one on.
In a similar vein, I've often considered putting a rubber collar on the filter can so that I'd have something to grip when I wanted to
unscrew it without destroying it. Any reason why I shouldn't?
David
[Edited on 11/8/05 by David Jenkins]
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shortie
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| posted on 11/8/05 at 10:37 AM |
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Does the oil need to be drained or is it possible to do without changing the oil?
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zenarcher
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| posted on 11/8/05 at 11:25 AM |
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Yes you can do it without changing the oil but it is messy due to some oil coming out when you remove the Filter.
After you have removed it clean the mating surfaces with a cloth,pore some oil(New)into the filter about half full, then smear some oil on the rubber
gasket.
Replace filter and tighten "hand tight" ie your hands are clean and so is the filter surface for best grip.
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