Engines in the CUCV?

[southdave]

freakin love fest... you all are drank way to much cool aid lol.. the engine was crappy, IMO the concept was still make gas engine a diesel, based upon foot print eventually a crank rod or bear journal may cut lose prematurely.. the engine is crap shoot
Here my experience..
it took 4 Humvee takeout engine to get enough rods to make one engine, found a crank after 3, and two of blocks had crack webs. they all rebuild dates 2006 & 2007 and green tags

 

[Keith_J]

Does every j code 6.2 have cracked webs? I am thinking that might be from unauthorized use of starting fluid.

 

[southdave]

it bad composition, engine design I read some where GM used a 409 cu gas block for base for design and to common system of assembly.

 

[Soaper]

almost every 6.2 has cracked webs down in the mains.
its an common problem and most never notice.
goodwrench and theres one other company that made 6.2L later on and there better blocks and they fixed alot of design issues. however there expensive.

 

[Keith_J]

If the block is a 409, why can you not replace tappets without taking the head off?

 

[Warthog]

almost every 6.2 has cracked webs down in the mains.
its an common problem and most never notice.
goodwrench and theres one other company that made 6.2L later on and there better blocks and they fixed alot of design issues. however there expensive.

GM switched to the 6.5L engines and then sold the rights to AM Generals General Engine Products division. They improved the design are still making the 6.5L. Stonepicker1 has the 6.5L Optimizer in his CUCV-II and it is a workhorse.

 

[porkysplace]

almost every 6.2 has cracked webs down in the mains.
its an common problem and most never notice.
goodwrench and theres one other company that made 6.2L later on and there better blocks and they fixed alot of design issues. however there expensive.

The GM small block gas engines had similar problems but the crack was between the lifter blocks . Lousy engineering and the need to cut weight for fuel standards the cheapened up the blocks to near garbage .

 

[M1009 NEWBEE 2013]

Sharecropper- Can you dig up the fluidampr part number you used? I was just getting ready to change out my damper in my 009 and noticed your post. I checked but there are several model numbers listed for the 6.2. Dave

 

[Hasdrubal]

they all rebuild dates 2006 & 2007 and green tags

I understood the Green tag indicates its "supposed to be rebuildable." not its OK..a good one.

 

[Warthog]

Yellow tag means it is good. Green means repairs required. Red is junk (not always )

 

[Soaper]

Machine shop here in town. Right next to ft Campbell used to get 6.2s by the truck load and out of 10 maybe . 2 Were worth rebuilding.

 

[Sharecropper]

Sharecropper- Can you dig up the fluidampr part number you used? I was just getting ready to change out my damper in my 009 and noticed your post. I checked but there are several model numbers listed for the 6.2. Dave

I spoke with a fellow named Ivan Snyder at Fluidampr when I purchased my unit. 716-592-1001. He told me the correct model number for our trucks is "800191, 8" FLUIDAMPR for 1982 - 1987 6.2L GM Diesel".

Hope this helps.

 

[11Echo]

Yellow tag means it is good. Green means repairs required. Red is junk (not always )

It was discovered after pulling the pan number seven rod broke off the piston and punched a window into the water jacket on this "yellow tag 6.5" engine. My friend should have filed a claim with GL as it was listed as good.
After a couple 6.2 engines in my 1008 I went with a gasser.