Pedestal O-rings
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Junior User
Joined: Jun 2005
Posts: 99
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From: Vancouver, WA
Pedestal O-rings
I am getting ready this weekend to install new pedestal o-rings, both top and bottom. While I have the turbo out I also am going to be installing the Wicked Wheel that I just received. Wish me luck! 
One question though. One I get the old o-rings out, and get everything cleaned up, do I put some oil on the new o-rings when I install them? or leave them dry? I thought I read somewhere in here that the o-rings will swell if they come into contact with oil.
One question though. One I get the old o-rings out, and get everything cleaned up, do I put some oil on the new o-rings when I install them? or leave them dry? I thought I read somewhere in here that the o-rings will swell if they come into contact with oil.
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
i give mine a good coat of Vaseline (not grease) and put a healthy amount on the mounting surfaces so they dont slide around or get moved and cut when you place your turbo on the pedestal and pedestal on block, the turbo gets heavy way back in there. the Vaseline will dissolve into the oil with heat, but grease won't.
while youre at it, remove the intake boots and clean them out real good, do the CCV if you haven't done it already.
the night before you plan to work on it, take a penetrating lube and spray all the V-band clamps (total of two) on the exhaust side of the turbo. one at the inlet behind it, and one that connects to the exhaust downpipe.
look at this: https://www.ford-trucks.com/article/...tallation.html
while youre at it, remove the intake boots and clean them out real good, do the CCV if you haven't done it already.
the night before you plan to work on it, take a penetrating lube and spray all the V-band clamps (total of two) on the exhaust side of the turbo. one at the inlet behind it, and one that connects to the exhaust downpipe.
look at this: https://www.ford-trucks.com/article/...tallation.html
Posting Guru
Joined: Feb 2004
Posts: 2,248
Likes: 1
From: Elverson, PA
Well the O-rings are gonna come in contact with oil anyhow - cause that is what they are sealing from leaking. I put a light coat on the O-rings when I did mine - it helps keep them where they belong while you are trying to fit the turbo back in there - more so than laying them in there dry anyway.
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Junior User
Joined: Jun 2005
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From: Vancouver, WA
Originally Posted by strokin_it7.3
while youre at it, remove the intake boots and clean them out real good, do the CCV if you haven't done it already.
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Junior User
Joined: Jun 2005
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From: Vancouver, WA
Well I replaced my pedestal o-rings both upper and lower this weekend. 5 hours...that was a PITA. While I had the turbo out I installed the Superior Compressor wheel and I love it! But...... I still have my oil leak. Oil puddling in the valley and running down the back of the motor. Could I have messed up installing the o-rings?? The lower ones were pretty straight forward... don't think I messed those up. The upper ones were more tricky, trying to slide the turbo back there without pinching the o-rings was tricky. I don't see any oil by the HPOP and the braided lines from the HPOP to the heads are dry..... HELP!!! LOL
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Junior User
Joined: Jun 2005
Posts: 99
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From: Vancouver, WA
Originally Posted by HeatStroked
Yes, more than likely your pedestal O rings are still leaking.
I recommend you purchase oversized O rings from KCMdieselperformance to ensure a good seal.
I recommend you purchase oversized O rings from KCMdieselperformance to ensure a good seal.
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Fleet Mechanic
Joined: Aug 2003
Posts: 1,772
Likes: 95
From: Phoenix, AZ
Stock rings are yellow and black.
Oversized are just black.
First I have ever heard of a pedestal leak after installing the oversized O rings. Is it possible they were not seated correctly? shifted or pinched during the install?
Oversized are just black.
First I have ever heard of a pedestal leak after installing the oversized O rings. Is it possible they were not seated correctly? shifted or pinched during the install?
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Elder User
Joined: Nov 2005
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From: North Idaho
Originally Posted by Joe98684
Well I replaced my pedestal o-rings both upper and lower this weekend. 5 hours...that was a PITA. While I had the turbo out I installed the Superior Compressor wheel and I love it! But...... I still have my oil leak. Oil puddling in the valley and running down the back of the motor. Could I have messed up installing the o-rings?? The lower ones were pretty straight forward... don't think I messed those up. The upper ones were more tricky, trying to slide the turbo back there without pinching the o-rings was tricky. I don't see any oil by the HPOP and the braided lines from the HPOP to the heads are dry..... HELP!!! LOL
Thread Starter
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Junior User
Joined: Jun 2005
Posts: 99
Likes: 0
From: Vancouver, WA
Originally Posted by HeatStroked
Stock rings are yellow and black.
Oversized are just black.
First I have ever heard of a pedestal leak after installing the oversized O rings. Is it possible they were not seated correctly? shifted or pinched during the install?
Oversized are just black.
First I have ever heard of a pedestal leak after installing the oversized O rings. Is it possible they were not seated correctly? shifted or pinched during the install?
Thread Starter
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Junior User
Joined: Jun 2005
Posts: 99
Likes: 0
From: Vancouver, WA
Originally Posted by pbr man
Check the forum for "found my oil leak" from strokin_it. He posted yesterday with the same problem. Could be what yours is too.