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Home » Public Forums » GMCnet » [GMCnet] Reviving the Cad 500  () 1 Vote
Re: [GMCnet] Reviving the Cad 500 [message #164105 is a reply to message #164071] Sat, 24 March 2012 21:17 Go to previous messageGo to previous message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
Senior Member
George,

When I opened the chain cover; and, removed the chain, sprockets, pump, and
shafts, I didn't see anything that disturbed my non-transmission expert
self, except for the input bushing I replaced. There are some additional
checks Manny says I should make when the transmission's out again, but I
don't think he really expects any of them to prove to be the culprit. Some
of them ARE items that have been suggested in some references as possible
contributors to this recurring problem, such as worn splines on shafts
causing binding of the TC.

Still scratching my bald head. Keep the ideas coming.

Ken H.


On Sat, Mar 24, 2012 at 7:05 PM, George Beckman wrote:

> ...
> 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.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
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