Duramax Diesels Forum Truck of the Week
  #1  
Old 02-21-2018, 09:04 PM
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Default Harmonic Damper

Has anyone used the Empire crank shaft pin kit and still had the damper spin or has it been working well ? I was going to pull stack and I thought while I was in there I would do the kit if it seems to be working well !
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05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
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Old 02-21-2018, 10:27 PM
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I wouldn't butcher it unless it's actually a problem and needed, I think it mostly happens after someone does a water pump and doesn't torque the the damper bolt or it never was torqued properly from the factory.
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over stock twins for now more later.
2010 LMM CCLB-Tuning/Exhaust
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Old 02-21-2018, 10:54 PM
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Depends on the power you're making. My brother and I spun the factory damper on a LB7 with nothing more than a Silver Bullet turbo and 60% injectors.

Man was that ever a pain to get off the crank

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Old 02-22-2018, 07:16 AM
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ive heard of guys using it with great luck. Doesnt help the cam pin situation or the crank gear pin but adding that reduces one more issue

As for when it happens, i dont think its just loose bolt/s. my cam pin was half bent over and about to shear when i tore the engine down years ago. the last few engines i did that have been tuned showed bending of the pins as well but not a consistant pattern (some were crank gear pins, others cam and one was the balancer with a tight as hell bolt)
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02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

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Old 02-22-2018, 07:56 AM
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Must be piss poor luck then my poor old pos has been on a max effort stock engine tune since 06 until a piston finally let go and all the pins looked good on tear down in 17. The few water pump jobs I've done they looked good to and most of them were tuned. I would say once you push over the 500 rwhp mark it would be a good idea though, but after that it's a motor build anyways not if just a matter of time
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over stock twins for now more later.
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Old 02-22-2018, 08:26 AM
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well, i am getting blown up engines, so you know they are beating on them
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Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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Old 02-22-2018, 08:10 PM
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Quote:
Originally Posted by Chevy1925 View Post
well, i am getting blown up engines, so you know they are beating on them
Some people can break anything and not even try One guy can have a measly 50hp tune and he can destroy everything..... Another guy with big hp and races is good for a long time
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04 LB7 ECSB Built motor, Wagler billet narrowed Rods, Callies billet crank, Mahle Race Cast pistons, Randy's Girdle, Wagler/Callies Stage 1 alterfire cam, Exergy 100% SAC's, dual CP3's, Randy's race ported heads, Profab cast flow/up pipes, and S475 over stock twins for now more later.
2010 LMM CCLB-Tuning/Exhaust
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Old 02-22-2018, 08:54 PM
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Thanks for all your feedback , I nave a very slight vibration in park or driving down the road between 1200 and 1400 rpm , very smooth outside of that rpm range . I thought might have bent or partially broke the 5mm pin . The water pump was changed by Black out , a very good shop , so it was done rite but after I took it to Evan for a new trany , and it works great , now I can get on it alot harder and until I get my new eng built I thought the Empire kit might hold it together longer . Thanks, great site ,great people !
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05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
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Old 02-22-2018, 09:13 PM
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Vibrations at that RPM usually mean injectors getting tired.


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2003 GMC CCSB LLY
Built by me, tuned by me.

2009 ECI Diesel Truck Points Champion
2010 ECI Diesel Truck Points Champion
2011 ECI Diesel Truck Points Champion
2012 ECI Diesel Truck Points Champion

Big thanks to everyone who helps me.

Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

Best 1/8th, 6.93, 104.24MPH (Street tires, fuel only, single HX60 turbo) (2016)

Best 1/8th, 6.60, 106.6MPH (Street tires, fuel only, single HX60 turbo) (2017)
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Old 02-22-2018, 09:35 PM
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Thanks , I love up grading , I will check them out . Maybe its time to do an inj clean . Any thoughts on Empire kit IOWA LLY ?
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05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
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Old 02-22-2018, 10:02 PM
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IOWA LLY IOWA LLY is offline
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I would not recommend it. Wait and do it right when the time comes to build the engine.


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2003 GMC CCSB LLY
Built by me, tuned by me.

2009 ECI Diesel Truck Points Champion
2010 ECI Diesel Truck Points Champion
2011 ECI Diesel Truck Points Champion
2012 ECI Diesel Truck Points Champion

Big thanks to everyone who helps me.

Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

Best 1/8th, 6.93, 104.24MPH (Street tires, fuel only, single HX60 turbo) (2016)

Best 1/8th, 6.60, 106.6MPH (Street tires, fuel only, single HX60 turbo) (2017)
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Old 04-18-2018, 11:24 AM
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Well I found that my oem damper just started to d laminate ,so I installed an ATI damper and Empire pin kit , with help from Isaac G and the vibration from 1200 to 1400 rpms is gone , yeaaa ! Thanks guys for input !
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05 CC/LB DRW LLY Allison
AFE Blade Runner,AFE Momentum CAI,DHD Big Air intake Y pipe, DHD fuel block,DHD pcv reroute,MBRP 4 inch exhaust,DHD 3 inch downpipe,BD driver's side manifold,DHD pass side up pipe,DHD 3 inch intercooler hot&cold pipes, ATI damper,Empire pin kit by Big Foot on & off road shop, FASS fuel system,5/8 inch pickup, FASS fuel filter delete, EFI live,V2 & lap top , 5 position switch 250 hp big tune, shimmed fprv by Crank it up , built SunCoast Allison 1078 converter aftermarket trany mount by Limitless Diesel,ARP head studs,grade C gaskets,tig-welded water pump,T stats by Blackout performance,MA t case brace , Kriptonite motor mounts,MA pump rub kit,HD drive shaft 1480joints by Greensburg machine,BDS Recoil traction bars, PPE finned deep pan , Mike L trany cooler, PSC pump, 5100s, Sulastic Shackles, Curt com 2.5 hitch
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