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01-11-2013, 08:57 AM
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#1 (permalink) |
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Diesel Specialist
Join Date: Dec 2010
Location: Pauline,SC
Posts: 982
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Old School Oil Burners (Old SOBs) Member |
Optimum timing setting with a DB2 pump
What would you think the optimum timing is for a manual truck using a DB2 pump. Using a MT1480 with the lumy probe in the glow hole ??
Max power - ? Factory timing - ? Max torx - ? Thoughts....
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1991 GMC K2500 SLX GEP 18:1 3.73 gear, Hellwig air bags NV4500 tranny More not listed...  |
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01-11-2013, 10:20 AM
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#2 (permalink) |
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Diesel Technician
Join Date: Oct 2011
Location: Northeast GA
Posts: 396
iTrader Score: 1 reviews
Old School Oil Burners (Old SOBs) Member Georgia Diesel Owners Club Member |
Max mpg - ?
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1992 Suburban, J-code 6.2L from a 1986 CUCV, 700R4, NP241 9" lift with straight axle conversion, HP Dana 44 with Loc-Right in front, Dana 60 with Detroit in rear, 4.10 gears, 4 wheel disc brakes 37 x 12.50R16.5LT HUMMV tires (rolls out at 35") 2.5" true duals with Flowmaster SUV 50's with a 2.5" H-pipe just in front of the mufflers bent over the driveshaft 1984 K10 Getting ready for a nice newly refreshed 1982 (changed to a 1989) 6.2 to replace the 350 gasser Last edited by dixiepc; 01-11-2013 at 10:20 AM. |
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01-11-2013, 10:31 AM
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#3 (permalink) | |
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Diesel Specialist
Join Date: Dec 2010
Location: Pauline,SC
Posts: 982
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Old School Oil Burners (Old SOBs) Member |
Quote:
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1991 GMC K2500 SLX GEP 18:1 3.73 gear, Hellwig air bags NV4500 tranny More not listed... |
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01-14-2013, 09:42 PM
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#4 (permalink) |
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Forum Troll
 
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I'll see if I can find out. I got the book somewhere.
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1886 M1008 CUCV 6.2 J code GM4 Turbo,DB24911 turned up. Raptor 100 lp. NV4500(the way they should have come) 5 inch Redneckmaster Ex Autometer Fullsweeps Serp Belt conversion. HO WP. Dmax Fan |
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01-14-2013, 09:48 PM
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#5 (permalink) |
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Diesel Technician
Join Date: Sep 2012
Location: Sarasota, FL
Posts: 464
iTrader Score: 1 reviews
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20k pounds? That including the weight of the truck? Are you referring to the truck in your sig with 373 gears?
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[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 VIN F - Ext Cab/Long Box ] Vac pump del OPS relay mod 3" straight pipe H/O water pump 180 degree tstat Bumper mounted FSD Home made TM @ 8 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs [ '95 Chevrolet C3500 Cheyenne 6.5TD 4L80E/G80/4.10 VIN F - Reg Cab/Util Box ] GM Goodwrench 6.5 Bone Stock! HUNTING FOR USED DS4 IP!  Rebuild Thread: http://www.dieselplace.com/forum/sho...d.php?t=469224 6.5 Rebuild Manual: http://www.johnsargent.net/sarge/65manual.pdf 6.5 Mod's (by 94C1500): http://www.johnsargent.net/sarge/65mods.pdf |
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01-15-2013, 07:48 PM
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#6 (permalink) |
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Forum Troll
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I could not find any numbers in the book. It only talks about static timing and i have never done it that way. I don;t have the book for my MT480. Been trying to hunt one down.
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1886 M1008 CUCV 6.2 J code GM4 Turbo,DB24911 turned up. Raptor 100 lp. NV4500(the way they should have come) 5 inch Redneckmaster Ex Autometer Fullsweeps Serp Belt conversion. HO WP. Dmax Fan |
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01-15-2013, 07:55 PM
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#7 (permalink) |
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Diesel Technician
Join Date: Oct 2011
Location: Northeast GA
Posts: 396
iTrader Score: 1 reviews
Old School Oil Burners (Old SOBs) Member Georgia Diesel Owners Club Member |
Aces,
I have an MT480 manual downloaded on my computer at home. I'll send it to you when I get there.
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1992 Suburban, J-code 6.2L from a 1986 CUCV, 700R4, NP241 9" lift with straight axle conversion, HP Dana 44 with Loc-Right in front, Dana 60 with Detroit in rear, 4.10 gears, 4 wheel disc brakes 37 x 12.50R16.5LT HUMMV tires (rolls out at 35") 2.5" true duals with Flowmaster SUV 50's with a 2.5" H-pipe just in front of the mufflers bent over the driveshaft 1984 K10 Getting ready for a nice newly refreshed 1982 (changed to a 1989) 6.2 to replace the 350 gasser |
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01-15-2013, 08:01 PM
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#8 (permalink) | |
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Diesel Specialist
Join Date: Dec 2010
Location: Pauline,SC
Posts: 982
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member |
Quote:
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1991 GMC K2500 SLX GEP 18:1 3.73 gear, Hellwig air bags NV4500 tranny More not listed... |
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01-15-2013, 08:05 PM
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#9 (permalink) | |
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Diesel Specialist
Join Date: Dec 2010
Location: Pauline,SC
Posts: 982
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member |
Quote:
Yep....  
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1991 GMC K2500 SLX GEP 18:1 3.73 gear, Hellwig air bags NV4500 tranny More not listed... |
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01-15-2013, 10:43 PM
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#10 (permalink) | |
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Diesel Technician
Join Date: Jul 2008
Posts: 416
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Quote:
Dump the timing tool. Won't work with 6.5l > No Spec, not applicable. Best set the timing line on the pump one line width over toward the drivers side. Could go a bit more but you are over-loaded towing.
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