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Corvair Center Forum :
Corvair Center Phorum - presented by CORSA
Corvair Center
PG whine and hard shift into D
Posted by:
gerg
()
Date: March 08, 2023 08:39PM
So I got the 140/PG running in the car today. I ran it several times on the ground, don’t remember the PG whining. Shifted it today through all gears. Initially it hard shifted into all gears. Now R seems to engage smooth, and D to L seems smooth, but still a hard slam in D from Neutral.
The whine goes away in gear also.
This a common problem? Haven’t driven car yet to see how it upshifts.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
The whine goes away in gear also.
This a common problem? Haven’t driven car yet to see how it upshifts.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Re: PG whine and hard shift into D
Posted by:
Wagon Master
()
Date: March 08, 2023 08:55PM
At what engine rpm are you going from N to D?
Friends Don't Let Friends Drive Stock
Been Aircooled Since 1973
Northwest Ohio 45840
Friends Don't Let Friends Drive Stock
Been Aircooled Since 1973
Northwest Ohio 45840
Re: PG whine and hard shift into D
Posted by:
gerg
()
Date: March 08, 2023 09:01PM
Sub 1000. If I had to guess, ~800-850.
Haven’t dialed it in completely.
I run my Rampside at about 625. I think this will need to be a little higher - haven’t looked it up yet.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Haven’t dialed it in completely.
I run my Rampside at about 625. I think this will need to be a little higher - haven’t looked it up yet.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Re: PG whine and hard shift into D
Posted by:
Brizo
()
Date: March 09, 2023 03:36PM
Gerg, Did you rebuild the trans? It shouldn't slam into gear no mater how fast the idle is but a common cause is a broken accumulator spring under the band piston . Not sure about the whine unless the fluid is real low or something is wrong with the pump .
Dan Brizendine, Circle City Corvairs
'64 8 door Greenbrier, +.060, stroked 1/4", 188 ci, 140 PG. "In beautiful Wanamaker Indiana...with one stop light and 5 pizza shops"
Dan Brizendine, Circle City Corvairs
'64 8 door Greenbrier, +.060, stroked 1/4", 188 ci, 140 PG. "In beautiful Wanamaker Indiana...with one stop light and 5 pizza shops"
Re: PG whine and hard shift into D
Posted by:
corvairsince70
()
Date: March 09, 2023 04:31PM
Dan - do you mean the large return spring under the low servo piston?
Dennis
Nashville area
Dennis
Nashville area
Re: PG whine and hard shift into D
Posted by:
gerg
()
Date: March 09, 2023 04:45PM
I did not rebuild this PG. Has been in my shop for about 8 years. Previous owner (trusted friend) said it drove fine when I got the car from him.
Fluid is full.
Is a true 140 PG - all markings are present. Pump cover, valve body, governor body & gear.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Fluid is full.
Is a true 140 PG - all markings are present. Pump cover, valve body, governor body & gear.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Re: PG whine and hard shift into D
Posted by:
RobertC
()
Date: March 09, 2023 05:14PM
Which PG fluid did you use?
Probably just needs some road miles on it... After sitting so long...
Probably just needs some road miles on it... After sitting so long...
Re: PG whine and hard shift into D
Posted by:
gerg
()
Date: March 09, 2023 05:20PM
The Dexron from Napa.
Same stuff we put in Steve's '62.
That is what I am thinking. I distinctly remember it slamming into reverse a few times the first day I shifted it. From D to L also.
Does neither of those now. Whine 'may' be a little quieter now too.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
Same stuff we put in Steve's '62.
That is what I am thinking. I distinctly remember it slamming into reverse a few times the first day I shifted it. From D to L also.
Does neither of those now. Whine 'may' be a little quieter now too.
gerg
Monroe, LA
Current cars and other fun stuff -> [gregblakeney.smugmug.com]
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