Duramax Diesels Forum Truck of the Week
  #1  
Old 04-30-2013, 05:54 PM
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Default installing rear main seal

Do I need an installer tool for installing a rear main seal on a lb7? Also do I need to replace the flywheel bolts with new ones?
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  #2  
Old 04-30-2013, 06:18 PM
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it is best to use the install tool, merchant automotive sells one. you can also pick up new flywheel bolts from there. i would replace them since they are a torque to yield bolt
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  #3  
Old 04-30-2013, 06:30 PM
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Yes and no.
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  #4  
Old 04-30-2013, 06:42 PM
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Ok well thanks to both of yall. I'm gonna see if I can make an installer tool then...
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03 lb7
Moonshine!
Suncoast stg v w/1056
Fass(soon to be matusa)
5in single stack
1, 2, or 3 turbos???
Etc....
Everything done by me
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  #5  
Old 04-30-2013, 07:03 PM
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Some one was saying that you could use a hammer and tap them in? Amy insight one this?
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  #6  
Old 04-30-2013, 07:05 PM
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I tapped mine in with a mallet, as I have before on any other engine. Just oil the outside and work around it and you'll be fine.

Sent from my PC36100 using Tapatalk 2
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Old 04-30-2013, 07:11 PM
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Well that saves me from doing more work then necessary. I just wake to ensure for no leaks.
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1, 2, or 3 turbos???
Etc....
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  #8  
Old 04-30-2013, 07:17 PM
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If its wrong your going to kick your self,If you want to paypal me a deposit for the tool ill send you mine to help outyou will have to pay the shipping both ways.
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Act like more of a human, and less like a spambot, and you'd probably catch less heat. This is "family", and it's our corner bar, and a group of guys with grease all over them leaning over fenders of somebodies truck that ain't making the right boost.

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Old 04-30-2013, 07:54 PM
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I f*****g hate rear main seals and all they stand for!! sorry had to get that out there, just really annoying job haha
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  #10  
Old 04-30-2013, 08:00 PM
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Replace the bolts. They are like you factory head bolts. Good for one use only. Go with oem gm or get arps
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  #11  
Old 04-30-2013, 08:27 PM
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I think I got the gold ones from the Allison dealer.

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  #12  
Old 04-30-2013, 08:38 PM
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What if the bolts are after market? I have an ATS flex plate, are those reusable.
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2001 2500HD Red on Black.
ATS Dual CP3, ATS intake and S366, ARP 625 head studs and main studs, LBZ Rods, Delipped pistons, Hamilton valve Spring, 30 over injectors, 4in Turbo Back exhaust, ATS tranny and Co-Pilot, Fass 150, and Running on Moonshine.
DIED AND NOW HAS BEEN RAISE FROM THE DEAD

1971 C10 Restoration/Street Project, Hoping for a Dmax
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  #13  
Old 04-30-2013, 11:04 PM
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Use the friggin installer tool! Are you guy's nuts? Its to much work to go back and fix it... If Scott is willing to loan you the installer, do it! Way to be a stand up guy Scott
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  #14  
Old 04-30-2013, 11:47 PM
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Quote:
Originally Posted by Burn Down View Post
Use the friggin installer tool! Are you guy's nuts? Its to much work to go back and fix it... If Scott is willing to loan you the installer, do it! Way to be a stand up guy Scott
X2.. Do it once and done. Using the installer it takes 30 seconds. Not worth f-ing 2 minutes of work for 6 hours of possible replacement down the road
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  #15  
Old 05-01-2013, 06:42 AM
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X2 on using the install tool. I have a few DIY customers that tried the hammer and 2x4 or punch. They almost always leak and we've had to fix them. Seal ain't cheap either so use the tool and do it right.
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