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| 01-04.5 LB7 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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11-07-2012, 07:30 AM
| eBay Motors #1 (permalink) |
| Join Date: Jul 2012 Location: East Tennessee
Posts: 9
| 2004 Duramax water pump replacemant... School me.. What can I expect? Any special tools needed? Time, how long should it take me ? I have a garage and tools to work with just wanted to know if I had any suprises before I jump into this. Thanks guys...  |
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11-07-2012, 07:40 AM
| eBay Motors #2 (permalink) |
| Senior Member  Join Date: Jun 2011 Location: Michigan
Posts: 392
| its not to bad i did one in my 05 in about 4hrs with beer haha. you need a holder for the fan pulley, a crank holder and a large breaker bar to take off the balancer and a good size torque wrench to put on, its not a hard job if you know your way around a truck a little bit, there are diy threads on it if you search them
__________________ 2005 LLY: S&B cold air, 5in straight pipe, efi live DSP5 from husker diesel switched with insight, 285s, tinted, smoked recon genius lights , smoked lights, Kryptonite tierods and centerlink, nicktane cat adapter |
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11-07-2012, 01:09 PM
| eBay Motors #3 (permalink) |
| DF Sponsors   Join Date: Nov 2010 Location: Zeeland, MI
Posts: 154
| We stock the Water Pumps (they come with all the gaskets and seals needed) Found at the below link: Duramax Water Pump 01-05 LB7/LLY with gaskets Also here's the link to the flywheel lock. Duramax Flywheel Lock
__________________ www.merchant-automotive.com |
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11-07-2012, 01:13 PM
| eBay Motors #4 (permalink) |
| Senior Member Join Date: Jun 2011 Location: Michigan
Posts: 392
| ^^ their waterpump kits a good stuff! thats what i put in and its cheaper than buying a pump and then going to gm to get the seals!!!
__________________ 2005 LLY: S&B cold air, 5in straight pipe, efi live DSP5 from husker diesel switched with insight, 285s, tinted, smoked recon genius lights , smoked lights, Kryptonite tierods and centerlink, nicktane cat adapter |
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11-12-2012, 03:56 PM
| eBay Motors #5 (permalink) |
| Join Date: Jul 2012 Location: East Tennessee
Posts: 9
| How the heck do you hold the fan pully to get the fan nut loose? |
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11-12-2012, 04:17 PM
| eBay Motors #6 (permalink) |
| Junior Member  Join Date: Sep 2011 Location: Bozeman, MT
Posts: 87
| Leave the belt on, get a pipe wrench and fit it to the nut, then smack wrench with the hammer a few good hits should take the fan loose.
__________________ Levi 2006 CC/SB LBZ 4" Black Magnaflow duals EFI By Rob Coddens  Air Dog II 200 EGR Blocked, PCV Rerouted Built Trans and other supporting mods www.dieselprosbozeman.com 406-551-2777 |
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11-12-2012, 06:25 PM
| eBay Motors #7 (permalink) |
| Junior Member  Join Date: Aug 2010 Location: Peoria, AZ
Posts: 208
| you need a torque wrench that will go up to like 285 I think something crazy like that for the harmonic balancer
__________________ LB7 under construction    |
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11-13-2012, 07:19 AM
| eBay Motors #8 (permalink) | |
| Longbeds FTW  Join Date: Oct 2008 Location: Natrona Heights, PA
Posts: 13,313
| Quote:
__________________ 06 LBZ EC/LB 4x4 Built Motor/Trans • Bullseye s375 • Stock CP3 • Built and Tuned by Blackout Performance • 11.76 @ 115 There are a lot of hacks in this industry. Be very careful with who you choose to do work on your truck! | |
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11-13-2012, 01:32 PM
| eBay Motors #9 (permalink) |
| Join Date: Jul 2012 Location: East Tennessee
Posts: 9
| Ok stupid question here, Is the fan nut a RH or LH to loosen? Yea I know rookie question right......I have beat pulled tugged hammered and cussed the hell out of it and am having no luck.... I'm only about 10' from the tourch in the corner and have really thought about useing it!!!!!!!....eh also I have the starter off and have turned the motor/flywheel a full turn and have only found 3 small half drilled holes, is this what I use to hold the motor while I break the big nut at the bottom loose? |
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11-13-2012, 01:40 PM
| eBay Motors #10 (permalink) | |
| Duramax Forum Supporter  Join Date: Apr 2007 Location: Wyoming
Posts: 3,301
| Quote:
If you have an air hammer, usually a couple hits on the corner of the fan nut will break it free.
__________________ 05 dmax/allison  | |
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