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| 6.2L Diesel Engine Discuss the 6.2 GM diesel engine & associated components. |
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02-20-2018, 05:45 PM
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#1 (permalink) |
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Diesel Starter
Join Date: Aug 2017
Posts: 159
iTrader Score: 0 reviews
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Arrghh. Second broken trans case in a month.
So, my brother and I were using my suburban to pull out some shrubs and cactus. (Yes wrong tool for the job. ).
When the trans started hemorrhaging fluid from the rear. Needless to say it cracked the rear of the case all the way around clear thru. So I tracked down another used trans, got it installed. It shifted high for a short while until I was able to get to adjusting the vacuum modulator. Was fine for a day then the flex plate started smacking the aluminum dust cover. So I thought maybe my flex plate had cracked teaching me for not change it while I was in there. Well I pulled the trans today only to find the bellhousing cracked from just below the passanger side dowel, back half way and across half way. Real bummer. I'd upload pics but this site is not allowing me. When I changed the trans I installed a new trans mount. Figuring it must have allowed the transfer case to rotate causing the circular crack in the rear. But now I'm not sure. Anyway, don't have the funds for a new trans so it'll be searching Craigslist for a used. Folkefalköga likes this.
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1991 k30 cclb 6.2l 4l80E 1986 k30 cclb 6.2 n/a th400 dually 1984 k30 cclb dually 6.2 banks turbo th400 gear vendor 1985 gmc suburban k20 banks 6.2 t400. |
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02-20-2018, 07:20 PM
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#2 (permalink) |
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respect the DB4 5722....
 
Join Date: Oct 2009
Location: lac superieur, quebec
Posts: 12,490
iTrader Score: 27 reviews
Old School Oil Burners (Old SOBs) Member Quebec/Labrador Diesel Place Chapter Member |
are all the transmission and t-case support rods installed?
__________________
Building power "Sanford and Son Style" 1998 gmc 3500 RCLB/4X4, 4L80E, DB2 converted, 6.2l #599 casting, bored .040", water-cooled garrett gt3271G turbo, CTS manifold, j-code intake, .290" IP, delphi injectors popped to 2300PSI with modded tips, 3" D.P., aero stainless muffler, triangle tip side pipe, Holley Red lift pump @ 5PSI, canton racing oil filter delete, remote filters, custom 5000psi gates oil cooler lines, over-sized long oil cooler, over-sized hayden tranny cooler, other than that its a "stock" engine.... acolytes of the "aggressive buddist's" principles since march 13th 2014 jim&jeff.... |
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02-20-2018, 07:32 PM
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#3 (permalink) |
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Diesel Starter
Join Date: Aug 2017
Posts: 159
iTrader Score: 0 reviews
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Unfortunately no. I recieved the burb without them.
However it took a hell of alot of pulling to break the first one. Second trans broke with hardly any usage. Just driving down the street. But no doubt gm put the rods for a reason. I'd just have to source some.
__________________
1991 k30 cclb 6.2l 4l80E 1986 k30 cclb 6.2 n/a th400 dually 1984 k30 cclb dually 6.2 banks turbo th400 gear vendor 1985 gmc suburban k20 banks 6.2 t400. |
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02-20-2018, 07:40 PM
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#4 (permalink) |
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respect the DB4 5722....
Join Date: Oct 2009
Location: lac superieur, quebec
Posts: 12,490
iTrader Score: 27 reviews
Old School Oil Burners (Old SOBs) Member Quebec/Labrador Diesel Place Chapter Member |
Another thread here on the 6.2L forum for the same thing......we'll figure something out. We have them on all our trucks.....now. Took searching and fabrication to get there....J&J.
Bigboytoys likes this.
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Building power "Sanford and Son Style" 1998 gmc 3500 RCLB/4X4, 4L80E, DB2 converted, 6.2l #599 casting, bored .040", water-cooled garrett gt3271G turbo, CTS manifold, j-code intake, .290" IP, delphi injectors popped to 2300PSI with modded tips, 3" D.P., aero stainless muffler, triangle tip side pipe, Holley Red lift pump @ 5PSI, canton racing oil filter delete, remote filters, custom 5000psi gates oil cooler lines, over-sized long oil cooler, over-sized hayden tranny cooler, other than that its a "stock" engine.... acolytes of the "aggressive buddist's" principles since march 13th 2014 jim&jeff.... |
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02-20-2018, 11:28 PM
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#5 (permalink) | |
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Diesel Starter
Join Date: Aug 2017
Posts: 159
iTrader Score: 0 reviews
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Quote:
Bad part is these HD cases are getting hard to find. I'm over here breaking them like eating candy. Lol I lol. But I'm really crying inside. Haha turbonator and old skool luvr like this.
__________________
1991 k30 cclb 6.2l 4l80E 1986 k30 cclb 6.2 n/a th400 dually 1984 k30 cclb dually 6.2 banks turbo th400 gear vendor 1985 gmc suburban k20 banks 6.2 t400. |
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02-20-2018, 11:40 PM
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#6 (permalink) |
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Diesel Starter
Join Date: Aug 2017
Posts: 159
iTrader Score: 0 reviews
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Ahhh. So this is how you guys are doing the emoticons. I don't think I've used a non mobile viewer since the early 2000's. Lmao!.
turbonator and old skool luvr like this.
__________________
1991 k30 cclb 6.2l 4l80E 1986 k30 cclb 6.2 n/a th400 dually 1984 k30 cclb dually 6.2 banks turbo th400 gear vendor 1985 gmc suburban k20 banks 6.2 t400. |
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02-20-2018, 11:42 PM
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#7 (permalink) |
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Diesel Starter
Join Date: Aug 2017
Posts: 159
iTrader Score: 0 reviews
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Top pic is the originally damage. Second pic is the tran I just installed after one day.
__________________
1991 k30 cclb 6.2l 4l80E 1986 k30 cclb 6.2 n/a th400 dually 1984 k30 cclb dually 6.2 banks turbo th400 gear vendor 1985 gmc suburban k20 banks 6.2 t400. |
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02-21-2018, 08:29 AM
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#8 (permalink) | |
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respect the DB4 5722....
Join Date: Oct 2009
Location: lac superieur, quebec
Posts: 12,490
iTrader Score: 27 reviews
Old School Oil Burners (Old SOBs) Member Quebec/Labrador Diesel Place Chapter Member |
Quote:
 On our end here, we have not used mobile phones since 2008.....LOL. The casing might have already had a hairline crack in it. We have checked casings here, some of the castings look cracked, but might just be surface imperfections. Finally the 4L80 casings were upgraded with a cross-hatch pattern of strengthening to eliminate the problem of cracked housings.....J&J.
__________________
Building power "Sanford and Son Style" 1998 gmc 3500 RCLB/4X4, 4L80E, DB2 converted, 6.2l #599 casting, bored .040", water-cooled garrett gt3271G turbo, CTS manifold, j-code intake, .290" IP, delphi injectors popped to 2300PSI with modded tips, 3" D.P., aero stainless muffler, triangle tip side pipe, Holley Red lift pump @ 5PSI, canton racing oil filter delete, remote filters, custom 5000psi gates oil cooler lines, over-sized long oil cooler, over-sized hayden tranny cooler, other than that its a "stock" engine.... acolytes of the "aggressive buddist's" principles since march 13th 2014 jim&jeff.... Last edited by turbonator; 02-21-2018 at 08:32 AM. |
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02-22-2018, 08:10 AM
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#9 (permalink) | ||
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Diesel Champ
Join Date: Apr 2014
Location: GTA, Ontario, Canada.
Posts: 1,647
iTrader Score: 0 reviews
Ontario Diesel Place Chapter Member Old School Oil Burners (Old SOBs) Member |
From past experience, have your driveshafts checked & rebalanced.
Had the same problem in my youngest brothers 94 T15 Jimmy. Same issue, first trans broke, finally sourced a 1 yr only trans.....broke even worse 2 weeks later. Figured out it was bad driveshaft harmonics was the culprit. turbonator likes this.
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1970 Dodge Dart 340 Swinger 1990 Chevy C-code R1500 Suburban "Southern Belle" 1993 GMC T15 Jimmy 4 door 1994 GMC T15 Jimmy 4 door *off to a new home (it's really white  )1999 Chevy ZR2 Blazer factory 5 spd. *RIP* 2003 Ram 3500 4WD quad cab SLT Laramie Cummins 6 spd. LIL BLUU 2017 Hyundai Elantra GLS sedan (wifeys commuter) Quote:
Quote:
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02-22-2018, 11:13 AM
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#10 (permalink) |
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Diesel Pro
Join Date: Nov 2015
Location: NH
Posts: 2,083
iTrader Score: 0 reviews
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Let's see if these load...ok, have to do 2 posts, please hold...
      Sent from my SM-S920L using Tapatalk Bigboytoys and boneheaddoctor like this.
__________________
1985 GMC K1500 long bed, 6.5 TD W/ NV4500, NP208 1991 GMC K2500 6.2L NA W/ 4L80E |
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