head gasket replacement - Chevy and GMC Duramax Diesel Forum
04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 01-22-2009, 07:45 PM   eBay Motors  #1 (permalink)
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Post head gasket replacement

Whats the best way to perform head gasket replacement,ya I know have the dealer do it but I have seen it done several ways.Removing the trans to access the rear of the turbo even removing the body lifting it up off the frame saves on the back to removing the engine. Has anybody done this and thinks one way is better than the other?You got to love GM si just take the bolts out and your done that easy.
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Old 01-22-2009, 09:01 PM   eBay Motors  #2 (permalink)
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The dealer did mine with the engine in, tranny in, and body on. They took everything right out the top.
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Old 01-22-2009, 09:10 PM   eBay Motors  #3 (permalink)
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We do them all with the body and front end still on. If we are going to do an engine we remove the body. Their is no easy way to do head gaskets. You have to do both sides at the same time. The book time on this is 34.8 hours. Its a complete pain in the ass and SHOULD NOT be peroformed by someone who has any doubts about doing it. Their is lots that can go wrong. You also need to remove the heads and then order the gaskets as per the thicknesses. They are different side to side and their is 3 different options.
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Old 01-22-2009, 09:14 PM   eBay Motors  #4 (permalink)
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I've done one, and left the cab on. I don't know how much easier it would be to take the cab off. I know on the 6.0's if you want to get the job done quick its best to take the cab off.
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Old 01-22-2009, 09:34 PM   eBay Motors  #5 (permalink)
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It would make it way easier to do after you get the cab off. But how many people can actually pull of the cab. Almost none.
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Lbz intake and mouthpiece
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Autometer boost and egt, res mod, Ride rite bags
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Hauls a 13k toyhauler to the dunes
My other car follow the link http://www.superchevy.com/features/c..._ss/index.html
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Old 01-23-2009, 05:45 AM   eBay Motors  #6 (permalink)
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its way easier taking 12-15 bolts out and removing the front clip..we did our Headgaskets in 14hrs and we had never done it before..its very straight forward just pull everything off and remember where it came from..
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Old 02-17-2010, 03:43 PM   eBay Motors  #7 (permalink)
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what are you getting at taking the front clip off?? looking to do mine since labor is $2500 alone. did you really do yours in 14hrs? any tips or things that make it easyer and quicker??

thanks alot
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Old 02-17-2010, 07:30 PM   eBay Motors  #8 (permalink)
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Just finished my LB7. Gaskets all around and cups, did not take the turbo out just took the intake crossover out. Patience and decent tool box will get you through it.
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Old 02-17-2010, 07:47 PM   eBay Motors  #9 (permalink)
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I am in the middle of doing mine & i was thinking that i should have taken the trans out, those up pipe bolts are a PITA & there is not much room on the drivers side to do anything.
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Old 02-17-2010, 08:07 PM   eBay Motors  #10 (permalink)
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just started mine this afternoon im hopeing its not to big of a PITA. does anyone know what the torque specs are on all the inportant bolts???

BMOS37
You said you blocked off your EGR what is there to that?
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2002 chevy 2500hd crewcab long box
six inch lift, w/ 35's, edge juice w/ attitude
4" MBRP turbo back, S&B intake, BD manifold
Fass Fuel Pump, ARP studs grade C gaskets i did myself
ranch hand bumpers and headache rack built by me and line x
recon smoked cab lights, tow mirrors
Cognito pitman, idler supports, HD tie rods, and spicer Pitman/idler arms

zf6 swap eventually
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