GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] Reviving the Cad 500  () 1 Vote
Re: [GMCnet] Reviving the Cad 500 [message #165256 is a reply to message #165228] Tue, 03 April 2012 22:31 Go to previous messageGo to previous message
Bob de Kruyff   United States
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma:
Senior Member
JohnL455 wrote on Tue, 03 April 2012 18:17

As far as the Dyno of death, just wondering what the failure modes were on the Buick and Cad engines. I know of the aluminum rocker issue galling the steel rocker shaft issue on the Buicks, but other than that they have the most robust main bearings. How did the Caddys give it up? I'm just guessing cams/lifters. Never had a Buick engine failure, but did have the Olds 455 spin a rod bearing, but blaming the PO non oil changes for that one.


John, when I was that 18 year old dyno operator in Saginaw as a GMI student, all I recognized was when an engine virtually came off the floor and peppered itself against the wall and safety glass. One of our engineers had to figure out how we could run transmission tests instead of engine tests. We weren't concerned about oil consumption, piston slap, valve noise or any thing like that. If it could run another test at wide open throttle for several days, it was a keeper. Both the Cadillacs and Buicks were spectacular in their ability to self destruct and explode and wake me up at 4 in the morning. When Saginaw Transmission retooled from the old 3 spd to the new Muncie 4 spd replacement, we needed much more HP and durability. The Olds couldn't deliver the power and the Pontiac finally became the power and durability standard. I can only assume that the Cadillac is often considered as a GMC alternative because it was offered in the Eldorado--not because it is a good engine.


Bob de Kruyff
78 Eleganza
Chandler, AZ
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: What's In A Name?
Next Topic: [GMCnet] Steel 16 Inch Wheels
Goto Forum:
  


Current Time: Wed Jun 26 07:28:44 CDT 2024

Total time taken to generate the page: 0.01686 seconds