<VV> From clutch to worse.. (1964 Sydper Turbo)

[Harry Yarnell]

Um, you didn't (directly) say if it cured the problem...

harry yarnell
perryman garage and orphanage
hyarnell1 at earthlink.net
----- Original Message ----- 
From: "Bill Meglen" <tirediron at charter.net>
To: "Virtual Vairs" <virtualvairs at corvair.org>
Sent: Saturday, June 16, 2007 3:20 PM
Subject: Re: <VV> From clutch to worse.. (1964 Sydper Turbo)


> My 1963 Spyder Turbo clutch disk disintegrated...replaced completely 
> with 1964 new clutch assembly flywheel etc. and pilot shaft bushing 
> (psb). Did NOT change clutch shaft pivot bolt. Pilot shaft fit very  snug. 
> Finally after some list speculation (the usual suspects?). I  determined 
> that perhaps the pilot shaft bushing was too tight  producing the 
> equivalent of a "direct drive" transmission. Symptoms:  clutch acted like 
> it was not fully disengaging, and no adjustment  corrected it. In 
> installing the pilot shaft bushing I inserted it  flush with crank 
> surface.  Noted on another engine that its pilot  shaft bushing was 
> embedded about 3/32" beyond flush. Speculated about  need to change pivot 
> bolt length (later bolt) but decided I was  getting sufficient free 
> travel. Vendor advise was that it was not  uncommon with a tight bushing 
> and  "driving" it would free it up.   Became concerned when 20 miles or so 
> accomplished nothing. Had heard  stories of similar cases {non-corsair) 
> leading to seized bushing/ shaft so decided it had to come out again. Did 
> so and evidence showed  that psb had likely spun in crank hole. Careful 
> measurement of all  parameters made me confident that I did not have a 
> bent or incorrect  pilot shaft etc. replaced with new bushing, lapped it 
> lightly to  insure clearance, drove  psb further in and reassembled. My 
> diagnosis  is that the tight pilot shaft bushing, and the pilot shaft 
> shoulder  bearing tightly on the bushing created a semi efficient "direct 
> drive" mechanical connection.  Never had experienced anything like  this 
> in previous clutch replacements. Did not even conceive of such a  problem.
>
> Bill
>
> 1963 Corvair Spyder Convertible
> 1966 Corsa Turbo Convertible (project)
> 1962 Corvair FC Rampside Pickup (2)
>
> ----- Original Message ----- From: "Kerry and jan B" 
> <deaconone at teleweb.net>
>
>>> Second issue is that I can't seem to  get the clutch adjusted  right. It 
>>> seems to take hold too close to the floor, and at times  seems to make 
>>> shifting hard, however there is almost NO play in  the clutch pedal. 
>>> What am I doing wrong?
>
>
>
>
>
>
> _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are 
> the property
> of the writer, please attribute properly. For help, 
> mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America, 
> http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: 
> http://www.vv.corvair.org/mailman/options/virtualvairs 
> _______________________________________________
>