<VV> PG trans SOLUTION found
larry at forman.net
Fri Aug 25 00:59:55 EDT 2017
I was able to obtain both the carb crossover balance tube with two ports
(one for the PG) and a correct PG 1/8" vacuum modulator line. Once I
was able to install the carb crossover balance tube, I pulled the vacuum
modulator hose off the left side carb and plugged it into the PG port of
the crossover balance tube. I plugged the left carb vertical port. I
had already adjusted the incorrect PG dipstick for the Late length of 19
9/16" per Clarks catalog and sucked out the extra ATF from having a
shorter dipstick. I then took it for a drive. All PG problems were
solved! Just getting the fluid level right and porting the vacuum
modulator to the correct port was the trick to get it working fine.
Thanks for all the suggestions. I will stick with Dextron III or IV
for now since it seems to be working fine. Next I will install the
correct vacuum modulator line and remove the incorrect rubber vacuum
On 8/22/2017 10:25 PM, Larry Forman via VirtualVairs wrote:
> Hi Jim,
> I was discussing this with a Corvair mechanic in Vacaville I know very
> well. He said that I definitely should suck the fluid out to the
> full level and see if that cures the problem as the fluid level is
> about 1-1/2 inches too high. That should be an easy fix to test.
> He said that I could suck as much of the ATF out as I can get and when
> I refill it I should use Ford ATF, not the Dextron III or IV. He
> explained that GM has ATF additives that soften the shifting but that
> Ford has additives that make the shifting much firmer and stiffer.
> He had a race car with a PowerGlide and used Ford ATF so that shifting
> was a lot more positive and firm.
> I will still report what I find for the solution to these PG problems.
> On 8/22/2017 9:44 AM, James Koenig via VirtualVairs wrote:
>> Hi Larry,
>> I am experiencing the same issue with my PG, well just the low gear
>> shutter. I do not know the cause, but found if I manually put it
>> into low
>> it locks into low just fine.
>> Let me know if you find the answer, I will be fixing mine soon.
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