<VV> Powerglide interchange

[shortle]

The last PG's had a different throttle valve linkage attatchment.'67-'69 were different (I think-sorry Bill).
Timothy Shortle in Durango Colorado
Still with the original unmelted red plastic junction block on my '69 #5044


-----Original Message-----
>From: Bill Hubbell <whubbell at cox.net>
>Sent: Apr 25, 2010 2:51 PM
>To: 'Tony Underwood' <tony.underwood at cox.net>, virtualvairs at corvair.org
>Subject: Re: <VV> Powerglide interchange
>
>Tony,
>
>Consider this - the point of GM's modifying the Powerglide was to
>accommodate the higher torque of the 164 CID engines.  Your transmission
>already had an issue which causes it to operate outside of factory specs.
>This pre-existing problem may therefore be masking any problem that might be
>caused by mating it to the 110hp engine.
>
>My point is that if we do not run the test with perfectly functioning parts
>there will be additional variables introduced that will make it very
>difficult to come to any accurate conclusions.
>
>Bill
>
>-----Original Message-----
>From: virtualvairs-bounces at corvair.org
>[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Tony Underwood
>Sent: Sunday, April 25, 2010 2:32 PM
>To: virtualvairs at corvair.org
>Subject: Re: <VV> Powerglide interchange
>
>At 11:02 AM 4/25/2010, Bill Hubbell wrote:
>>I would say that Tony's situation does not answer the question. His 
>>powerglide obviously has shifting problems to begin with and is 
>>therefore a poor test vehicle.
>>
>>Bill Hubbell
>
>
>Let's review:
>
>
>>No problems so far... with a 50 year old 200,000+ mile  Powerglide
>>that's never had a screw turned on it, but still doesn't seem to care
>>that it has a 110 behind it instead of the 80hp it came
>>with.
>
>
>This means the transmission *did not care* that it had a 110 behind 
>it.   It made no difference in the transmission's every day 
>operation.   There was no difference at all between the 80hp engine 
>and the 110hp engine as far as the transmission was concerned.
>
>THEN:
>
>I mentioned a quirk this Powerglide has...
>
>
>>This particular Powerglide has had its odd quirks since day
>>one, however...  like the strange shift issue:
>>
>>
>>Downshift the transmission to LOW (like climbing a very steep grade
>>and you wanna stop the transmission from constantly upshifting then
>>downshifting again etc) and once you shift back into DRIVE it stays
>>in LOW until you mash down HARD on the gas, whereupon it shifts into
>>DRIVE.   Ease off the throttle and it shifts back down into LOW
>>again.   Speed makes no difference, shift "reversal" issue does the
>>same thing regardless of how fast you're going.  Stop, and it still
>>won't upshift until you mash the gas hard enough to get into the
>>kickdown which of course then downshifts the transmission back into
>>LOW if you ease off.   When you're going 40 mph trying to clear this
>>issue (hopefully) it becomes a bit of an adventure.   But it didn't
>>take long to find a fix...
>>
>>Shift the transmission up into Neutral, then back into Drive, all is
>>well again.    Like I said, it's done this since the first day I got
>>the car 26 years ago.
>
>
>
>MY comments about the manual downshift quirk were a carry-over from 
>the original comments about how MY experiences with an ancient 
>Powerglide with a later larger engine seemed to make no difference in 
>how the transmission functioned.
>
>The comment was also intended to perhaps prompt a reply from anyone 
>who might have seen this sort of thing before.
>
>
>Quirks or otherwise:    It behaves the same with the late model 
>engine as it did with the 1960 80hp engine.
>
>
>I believe that was the original question, wasn't it...?      ;)
>
>
>
>
>tony..
>
>
>PS:    As long as this 50 year old Powerglide is left in DRIVE and 
>allowed to shift automatically, and not manually downshifted into 
>LOW, it has NO shifting issues at all and behaves perfectly normally, 
>80hp or 110hp.
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