Allen in NE - How about using some accurate facts

Posted by jdemaris on March 20, 2006 at 06:04:17 from (66.218.22.58):

In Reply to: Re: Modified gasser story is a myth posted by Allan In NE on March 20, 2006 at 02:48:33:

Why don't you cite some accurate sources for what you posted? Also, I don't hang out, nor do I chat at coffee rooms. My experience is first-hand, not acquired by gossip and hype. I was working for a John Deere dealer when GM came out with the 5.7 and 4.3 liter V-8 diesels - which include the 350 and a 260 cubic inch V-8s - both made by Oldsmobile, on an Olds block-platform. The 260 was a sleeved-down 350 block. We were contracted to perform warranty work on the GM diesels because the local Chevy/GMC dealers had no experience with diesels. Same thing happended with the early Chevettes and the Isuzu diesels. So, I spent years working on the engines - much of it being warranty work for GM. Much of the work was frustrating, because there was no good fix for certain problems. When doing warranty work, we were not free to innovate, and had to use GM guidelines. On the other hand, we did some "private" repairs that had better success. Roosamaster was also involved because of the many injection pump failures - which they blamed on the high underhood temperatures of passenger vehicles and also, owner ignorance.
Now, YOU claim the engine was not a converted Olds engine?
We had written communications from #1 - Frank Ball, the assistant chief engineer at
Oldsmobile Division when they created the diesel, and #2 Paul Mutty - 1977 project
engineer at Oldsmobile for the diesel conversion project. As described by them - the Olds block
was taken and enhanced, by making the crankshaft mains and rod journals 1/2” larger,
piston pins changed to floating design instead of pressed and the block was heavier with
added nickel content. The early engines had MANY crankshafts break in half, head gaskets
blow, and injection pumps fail. With the later engines, especially after GM got sued, the
crankshafts got better, as did the injection pumps, but the head-gasket problem did not
improve. Seems there just was not enough metal and bolts to hold it together. They had many more failure problems in cold area than in warm ones.
For you to say these engines were just as good as any other diesel- back it up with some real fact. And, as far as parts sharing? They were converteted, ergo, the connotation is "different." Same bolt pattern as the gas engine though, which narrowed down converting problem vehicles back to gas power. The only bolt-in swap for a gas engine was the Oldsmobile engine.
The following is an old news-blurb about the subject - I don't remember where it came from - but it's not my writing.

"GM turned to Diesel power, directing the Oldsmobile division to develop two V-6s and
one V-8 to be shared with all divisions.
Oldsmobile's engines, the 5.7 liter LF9 and 4.3 liter LF7 V8s and 4.3 liter LT6, LT7,LS2
V6, were notoriously unreliable. Although over one million were sold between 1978 and
1985, the failure rate of GM's engines ruined the reputation of Diesel engines in general
in the United States market. Eventually, a lawsuit resulted in an arbitration system under
the supervision of the where consumers could claim 80% of the original cost of the
engine in the event of a failure."

Replies:

• Re: Allen in NE - How about using some accurate f Allan In NE 07:57:47 03/20/06 (6)
  • Allan et. al. should double-check facts jdemaris 11:24:21 03/20/06 (3)
    • Re: Allan et. al. should double-check facts Allan In NE 12:57:33 03/20/06 (1)
      • Re: Allan et. al. should double-check facts jdemaris 17:49:56 03/20/06 (0)
    • Re: Allan et. al. should double-check facts Sloroll 11:45:09 03/20/06 (0)
  • Re: Allen in NE - How about using some accurate f Sloroll 08:19:10 03/20/06 (1)
    • Re: Allen in NE - How about using some accurate f TRC 08:27:10 03/20/06 (0)

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