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 #164071 is a reply to message #163441] Sat, 24 March 2012 18:05 Go to previous messageGo to previous message
George Beckman is currently offline  George Beckman   United States
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma:
Senior Member
Ken Henderson wrote on Sun, 18 March 2012 18:31

Today was not a good day.

Baffled, desperate, sad, disgruntled, upset,..., all that stuff, I
started trying to figure what to do. Wound up pulling the starter,
flywheel lower cover, and inspection hole cover. Then disconnected
the torque converter from the new flex plate. Sure 'nuff, the TC
slides fore and aft easily about 1/8" -- just like it should, and did
when installed last Sunday -- it didn't push on the crankshaft. But
something did: With a pry bar I made sure the crank end play (0.008"
when assembled) was all taken up toward the rear to verify the TC free
travel. Then I pried from the rear to the front -- Kerplunk! With a
dial indicator on the flex plate, I found that the crankshaft now has
0.062" end play! Sad( That's almost half of the 0.125" I accumulated
in the 11,000 miles before the oil analysis identified the problem
before. And this time it took only about 300 miles!!!

I have no idea WHY. Nor WHAT to do. And I don't want to talk about
it or even think about it for a while. Y'All figure it out; I'm gonna
go pout.




Ken,


Terrible news.

The following is probably all wet, but we are grasping at straws here.

I don't know beans about these GMCs compared to some but this has to be a lot of force. Are we sure there is not something amiss with the upper chain/sprocket/bearing/case? I don't even know how that is all held in there, but could something be out of line that is driving the sprocket forward into the TC and then on to the flex plate and crank? I know the TC is supposed to slid on the shaft. I just wonder if the sprocket dropped (pulled toward the driven sprocket) even a tiny amount it would be shoved forward by the uneven chain pressure. The flex plate could be making up for the misalignment.


'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
 
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: Fri Sep 27 13:44:23 CDT 2024

Total time taken to generate the page: 0.02281 seconds