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09-18-2010, 02:31 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Oil Drain Plug Gasket Suggestion
I changed the oil on my Roush 402 and installed a new copper washer on the oil drain plug. After test driving it (test drove, cleaned the area thoroughly, and test drove the car again) I noticed some seepage around the drain plug.
It's not even enough to drip on the floor and I know it's not coming from another source. The drain plug can't be tightened any more.
Anyone have any suggestions for another type of gasket (rubber?) or a gasket to use in conjunction with the copper ring? Maybe a little dab of high temp RTV?
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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09-18-2010, 03:10 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,012
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Not Ranked
Sometimes that seepage stops by itself after a couple of heat cycles, so don't rush. If it continues to seep, I've had luck with Dorman's rubber/steel combo. Available from Summit.
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09-18-2010, 04:39 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Thanks Patrick. I'll put some miles on the car and see if it stops by itself.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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09-18-2010, 05:14 PM
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CC Member
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Join Date: Jul 2007
Location: Detroit Burbs,
MI
Cobra Make, Engine: Former owner of SPF#2632
Posts: 257
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Not Ranked
Doug - guess what...mine does the same. Only when I really inspected it looks like the drip is actually coming from the threaded fitting plug (some us it for the oil temp gauge) and wisking back a few inches. Never actually forms a drip so i am not touching it. This fitting is on the pan a few inches forward of the oil drain plug on the drivers side.
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09-18-2010, 05:30 PM
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CC Member
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Join Date: Dec 2004
Location: Kansas City,
KS
Cobra Make, Engine: jbl
Posts: 2,291
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Not Ranked
work it a couple times back and forth to get the parts to wear together then put the final torque on it and see if it holds. soft aluminum washers work also.
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09-18-2010, 10:38 PM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,452
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Not Ranked
I use a thick rubber gasket from NAPA. No seepage at all.
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09-18-2010, 10:42 PM
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CC Member
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Join Date: Jan 2008
Location: Williamsport,
PA
Cobra Make, Engine: Kellison Stallion 468 FE
Posts: 2,703
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Not Ranked
i had the same issues with my canton pan drain plug, no matter what gasket i used it seeped. i wrapped the threads with teflon tape problem over. it takes a minute extra but it never leaks.
__________________
Fred B
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09-19-2010, 07:17 AM
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CC Member
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Join Date: Mar 2000
Location: Fairfield, NJ, USA,
NJ
Cobra Make, Engine: A & C, 351W, Tremec 3550. Exiled Member: Club Cranky
Posts: 5,897
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Not Ranked
I installed a permanent quick release fitting. I never have to remove the drain plug. I simply remove the protective cover and snap on a drain hose.
Roscoe
__________________
Roscoe
"Crisis occurs when women and cattle get excited!"....James Thurber
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09-19-2010, 08:49 AM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Quote:
Originally Posted by bobcowan
I use a thick rubber gasket from NAPA. No seepage at all.
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Bob - Do you use the the thick rubber gasket alone or with a copper gasket?
Anyone know what size the drain plug is on Roush 402? I just changed the oil and don't want waste it measuring the plug.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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09-19-2010, 09:56 AM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,452
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Not Ranked
Just the rubber gasket all by itself. I don't use any thread sealer, either.
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09-19-2010, 10:13 AM
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CC Member
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Join Date: Mar 2000
Location: Fairfield, NJ, USA,
NJ
Cobra Make, Engine: A & C, 351W, Tremec 3550. Exiled Member: Club Cranky
Posts: 5,897
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Not Ranked
This is the quick release system from Aeroquip.
Roscoe
__________________
Roscoe
"Crisis occurs when women and cattle get excited!"....James Thurber
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09-19-2010, 12:40 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
GM uses a Aluminum washer 1/2" with a rubber insert. Available at any GM dealer, maybe NAPA too? Ford uses something similar on there vehicles with aluminum oil pans.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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09-19-2010, 06:23 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Thanks for all of the suggestions. I went down to the Napa store this morning and the parts guy brought out a drawer with a bunch of different types of oil plug gaskets. They had the Dormand, but the diameter of the copper ring was too large to be effective.
I ended up finding a rubber gasket (Napa PN 704-1964) that fits tightly around the oil plug with a perfect diameter to accommodate the copper ring and the pan surface. I put the rubber gasket on first, then the copper ring, the the oil plug.
Seems to be working so far.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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