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Author Topic:   Powerglide parts / modifications ?'s
BrianW
Member
posted June 02, 2003 09:49 AM
I usually have run the powerglie setups with the dump valve off the pump, but bought a complete "race ready" setup at an auction - this one doesn't use the external lines, so how the heck is it set up?? I don't just want to throw it in there and see what happens... How are the ones that use the clutch pedal hooked up? Do they use the kickdown lever somehow? Also have heard of ones using a reverse valvebody and drilling a small bypass for low gear - use it to start moving and put in high quickly...

What can I look for to see how this one is set up??

ALso - I'm looking for a front pump, input shaft and some misc parts - anyone have a good source?? There is only 1 or 2 people that have core 'glides for sale, and they're getting expensive!

- Brian

Rick D
Member
posted June 02, 2003 04:27 PM
My PowerGlide uses the internal dump valve with a hyd slave cylinder. It has two levers at the shifter.



BrianW
Member
posted June 02, 2003 05:55 PM
Does it use the origional transmission kickdown lever as the dump valve??


Sidebite252
Member
posted June 02, 2003 07:07 PM
We've run a Brad's tranmission PG for 5 years. I've been into it for a rebuild a couple of times and this is what I can tell you. There is a small hole drilled on the steel line running from the valve body to the servo cylinder that works the low band(low gear) - this is where you get your bleed by in low. Also, there is a small hole drilled in the reverse drum - same as the small hole in the servo line: a pressure bleed hole. Look for these 2 holes in the servo piston line and the reverse piston. This should tell you if the transmission is an internal bleeding system.

Brian, the last 2 PG I located were in a junk yard and they were the "air cooled" converter type with the 4 holes in the bell housing. These pg's are getting hard to find.

BrianW
Member
posted June 03, 2003 10:02 AM
quote:
Originally posted by Sidebite252:
There is a small hole drilled on the steel line running from the valve body to the servo cylinder that works the low band(low gear) - this is where you get your bleed by in low. Also, there is a small hole drilled in the reverse drum - same as the small hole in the servo line: a pressure bleed hole. Look for these 2 holes in the servo piston line and the reverse piston.

OK - what size were the holes and is it using a reverse valve body??? (i.e. PRNLD) - so that Low applies with bleed to get moving and then drive has no bleed??

Anyone know how to make a reverse valve body?

Sidebite252
Member
posted June 03, 2003 08:45 PM
Brian,

I'm in Bolivia working at the present time so I'm not able to verify but the best I can remember is the hole in the line to the servo is about 1/8 to 3 1/16 max. The hole in the reverse piston is the same. As far as a reverse body I'm not sure about that. I do know the downshift actuator is locked and doesn't move but the best I could tell nothing else on the valve body has to be modified. Yes, you need to use low to get going - I can stall my motor if I lock up the wheels while running in high gear. I've also modifed the drive clutch pack to accept 5 clutch disc and I'm only running 3 reverse clutch disc - plan to try only 2 reverse clutch disc next rebuild (less friction). I've also lightened the drum that runs on the planitary gear by macining off some of the weight off of the outside of the gear side and drilled holes in the slotted side where the reverse clutches go. Dropped over a pound of rotating mass with this modification. Send me an email and I'll get back with you when I get home in a couple of weeks. sidebite252@yahoo.com

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