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10-29-2002, 07:51 PM
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Senior Club Cobra Member
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Join Date: Oct 2000
Location: Las Vegas,
NV
Cobra Make, Engine: Kirkham#182/Shelby 496c.i.
Posts: 756
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Not Ranked
What thread sealer is best?
I've got a sideoiler with a small oil leak from the front plug-bolt on the oil galley. Any advise on which thread sealer to use? There is no washer, I assume that's correct, right?
Thanks!
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"You can NEVER teach a pig to sing! You'd just be wasting your time and annoying the pig!"
Last edited by ST; 10-30-2002 at 07:25 AM..
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10-29-2002, 08:36 PM
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Senior Club Cobra Member
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Join Date: Nov 2001
Location: Kountze,
TX
Cobra Make, Engine: CMC, 351 Cleveland, Dual Quads, C6
Posts: 1,377
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Not Ranked
I have had real good luck using ARP Teflon Thread Sealer. (ARP being the bolt makers) Their assembly lube is also very good as a never seize lubricant on bolts.
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10-30-2002, 06:49 AM
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Senior Club Cobra Member
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Join Date: Oct 2000
Location: Grand Rapids, MI USA,
Posts: 175
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I use Loctite Blue. I have never had a leak. I'm not sure anyone else would recommend it, but it works great for me. It seals good, locks the fittings in place, doesn't deteriorate, easy to clean, & it looks good.
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Dave Brouwer - I'm going racing!
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10-30-2002, 02:53 PM
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CC Member
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Join Date: Mar 2002
Location: so cal,
Cal
Cobra Make, Engine: I used to fix them for a living
Posts: 2,563
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Not Ranked
permatex #2 non-hardening is what I use on threaded oil galley plugs. Press in plugs I use red locktight. Either way, don't let the sealer get pushed into the hole, only keep it between the threads on the plug and it's hole.
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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12-01-2002, 01:39 AM
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CC Member
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Join Date: Jun 2001
Location: East Texas,
Posts: 10
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Loctite is the answer
All three methods will work but I prefer Loctite. The Permatex is messy. The teflon might not work as effectivly as the Loctite. The Loctite only 'sets up' in absence of oxegen so any extra Loctite can be easily removed from aroun the bolt or plug.
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Dan Lancaster
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12-01-2002, 03:18 AM
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CC Member
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Join Date: Jul 2001
Location: Senoia,
Ga.
Cobra Make, Engine: 427SO with big twin autolite inlines on custom intake, jag rear, top loader, wembeldon white, guardsmen blue stripes
Posts: 3,155
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Not Ranked
This oil galley plug is critical, as you can see there are few threads to seat a plug, a conventional allen head pipe plug will seat deep enough to block a large percentage of the oil flow to the engine, not something you want after all the oiling mods!.
This is easy to see when assembling engine, turn engine up on it's left side and look in the top oil inlet hole, where the oil filter/adapter bolts to the engine.
I turned down the plug on my lathe but, wound up cutting to much and got into the allen socket.
After some searching, I located and used a brass 9/16 hex head pipe plug, after turning it down in the lathe.
Remember, there are only 4-6 threads
in the block so don't torque the plug to much and of course us a good sealer.
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Perry
Remember!, there's a huge difference between a 'parts' changer, and a mechanic.
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12-01-2002, 06:05 AM
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CC Member
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Join Date: Aug 2002
Location: Niagara Falls,NY,
Posts: 62
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Well im going to add my .02.I have been a plumber for 15 years now and this is what I tell everyone.If you don`t want a leak on any threaded connection use teflon tape and dope togeather.If it is in an area that you dont want contamination put the tape and dope on a couple threads back.Use regular ol teflon tape but the secret is in the dope.Use a non hardening type like rector seal #5 or gasoila.If you use a harding type like leaklock or expando it will leak if there is any vibration, movement or thermal expansion.Anyone here can tell me im wrong but I use this every day at work and I can tell you this,it will hold at least 200 psi on a threaded connection.BTW put the tape on first than the dope..Hope this helps someone out.
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"Go loud or go home"
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12-01-2002, 06:59 AM
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Senior Club Cobra Member
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Join Date: Oct 2000
Location: Las Vegas,
NV
Cobra Make, Engine: Kirkham#182/Shelby 496c.i.
Posts: 756
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Not Ranked
Thanks for all the input but I got a tip from a engine builder at the speedway here. He said if you want to be sure..... use a SMALL amount of J&B 5 min. weld on the threads.
It'll never leak and If you need to remove it in the future you can crack it off by tapping it with a hammer.
So far he was right, it has not leaked a drop.
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"You can NEVER teach a pig to sing! You'd just be wasting your time and annoying the pig!"
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