flexplate gaps?

[bigmac73]

when installing my new transmission i noticed that there is about 3/8 or more gap between the flex plate and the converter, I usually use flat washers to shim it up when I bolt them together, should I use fly wheel shims?

And what is the normal gap between the flex plate and converter I don't want to pull it forward to much or cause my flex plate to warp tighten it down?



168 tooth fly wheel, TH350 tranny

[geezer#99]

If the torque convertor is seated into the pump it will sit about that far from the flexplate. Slide it ahead and bolt it on. No washers allowed unless you like fried pumps, warped flex plates and strange vibrations.

[Ol Blue K20]

Originally Posted by geezer#99

If the torque convertor is seated into the pump it will sit about that far from the flexplate. Slide it ahead and bolt it on. No washers allowed unless you like fried pumps, warped flex plates and strange vibrations.

x2

[67 chevelle]

without that space the "flexplate" will not flex you will burn up your trany pump in short order if you shim it tight

[bigmac73]

http://atfspeed.com/component/conten...tallation.html


(STEP 7: After the transmission housing bolts are tight, check to see if the converter can turn freely (except Ford applications with studs). Push the converter into the transmission as far as possible. Using a ruler or scale, check the distance between the converter pad and the flexplate. Pull the converter forward a minimum of 1/8 of an inch, maximum 3/16 inch. Using the flat washers, remove any additional space between the converter and flexplate. NOTE: In case of Ford applications with studs, measure from end of stud to flexplate. Tighten converter nuts and measure again. The difference should be within the tolerance.)

this what i used when i installed the last one , and in the past i had a turbo 400 on another chevy and had to use flat washers as well then

[Ol Blue K20]

Originally Posted by bigmac73

http://atfspeed.com/component/conten...tallation.html


(STEP 7: After the transmission housing bolts are tight, check to see if the converter can turn freely (except Ford applications with studs). Push the converter into the transmission as far as possible. Using a ruler or scale, check the distance between the converter pad and the flexplate. Pull the converter forward a minimum of 1/8 of an inch, maximum 3/16 inch. Using the flat washers, remove any additional space between the converter and flexplate. NOTE: In case of Ford applications with studs, measure from end of stud to flexplate. Tighten converter nuts and measure again. The difference should be within the tolerance.)

this what i used when i installed the last one , and in the past i had a turbo 400 on another chevy and had to use flat washers as well then

I just called my tranny guy and he laughed hard..Don't do the washers

[GASoline71]

Looks like an ATS specific application. I still wouldn't use them.

I've never had to use any washers with any converters I've installed in TH350's. From 4,000 RPM race converters, to bone stockers. Pull 'em up to the plate and bolt them to it.

Gary

[clinebarger]

1/4" to 3/8" is normal, If it's 7/16".....Shim to 1/4".
Do Not use flat washers, There are special Shim Washers...(Wilwood caliper shims work well, Pressure plate shims also)

Running 1/8" is TOO close!!