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Author Topic:   trans ??
bob17
Dirt Roller

Total posts: 16
posted June 27, 2004 04:14 PM  
i burned up my second powerglide this season last night.two in 9 races it was a tci cirlematic running in low, they say you can use them this way but from experience anyone looking to go this direction should try something else unless you can gear it to run in high. my question is i put a spare pg i had lying around in today, i had to change the shift linkage inside the tranny, i used the linkage set up out of the tci. the tranny worked fine before now i have park and 4 reverse gears. i have reverse in neutral, low, high, and reverse. i'm hoping i just got something out of wack when i installed the linkage. i put it together just like it was, i think, it clicks into every gear, park works fine, any ideas.thanx

Raz_900
Dirt Forum Champ
Total posts: 635
posted June 27, 2004 07:20 PM  
Are you using a cooler and deep pan? Without a tranny cooler at the least, I wouldn't expect it to live long at all.

With a stock pan and 1 - 3/4" x 11" x 8" B&M cooler mine would peg the temp gauge at 260 after about 7 laps. With a 2nd cooler the same size in series it's around 210-220 after 15 laps of straight racing. Add the 2 qt bigger Summit aluminum pan and it stays under 220 even on a caution filled night.


udecide66
Dirt Freak

Total posts: 229
posted June 27, 2004 10:18 PM  
I agree, if you run a powerglide in low you must have a transmission cooler.
I have seen a bushore powerglide ran in low gear for 50 laps weekend after weekend and never have any problems, has a good size cooler mounted in front of radiator.
This is in a super truck that runs asphalt, basicly a stock metric car with a aftermarket truck body, stock 10 bolt rear so no deep gears for final drive, just 3.08 gears and low gear in the tranny.

ROXBURYRACING
Dirt Full Roller

Total posts: 34
posted June 28, 2004 07:52 AM  
BOB17: IT SOUNDS LIKE YOU MISSED WITH THE PIN ON THE SHIFT ARM THAT HAS TO HOOK ON THE MANUAL CONTROL VALVE OF THE VALVE BODY. THE TRANS WILL HAVE PARK AND CLICK ON THE DETENTS FOR THE SHIFTER BUT NOT MOVE THE VALVE.
IF YOU TAKE THE PAN OFF AND LOOK UP IN THE TRANS YOU SHOULD BE ABLE TO SEE IF THE ARM IS MOVING THE VALVE . IF YOU CAN NOT TELL, REMOVE THE TWO BOLTS AND REMOVE THE DETENT GUIDE PLATE. IF THE PIN IS OUT OF PLACE, WITH THE GUIDE PLATE OUT OF THE WAY, YOU CAN MOVE THE SHIFT ARM OUT FAR ENOUGH TO HOOK TO THE VALVE.

AS A SIDE NOTE. WE BUILD MANY LOW GEAR ONLY TRANSMISSIONS AND DO NOT HAVE A PROBLEM, BUT YOU DO NEED TO RUN A COOLER.

mansfief
Dirt Maniac

Total posts: 128
posted June 28, 2004 01:06 PM  
Roxbury is right. That is what happened to me. I read the trouble shooting instrctions from TCI and it listed the problem and the cause.

bob17
Dirt Roller

Total posts: 16
posted June 29, 2004 02:24 PM  
thanx roxbury, that was it, i have not worked on trannys in about 8 years since school. guess i just forgot some info.lol i had a cooler on the other tranny and a deep pan, we only run 15 laps. i'm not sure why i burned them up. i run down low alot and i noticed that both of them burned up soon after having to check way up and almost stop then get right back on the gas. if i dropped the rpms to low and then jumped back on it would that have caused the prob? it seems like it would be like doing a nuetral drop almost.

    

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