my tranny killed my engines.

[jaxle]

to keep it brief.
i had a shop build a 727 with a cheetah valve body.

i knew it was a good valve body because i had been using it.

at the same time built my own engine.

i had some problems with the shifts, first and reverse.
i visited the tanny shop to no avail.

i pulled the valve body and found the check balls in the wrong places. i moved them where the were supposed to go.

2000 miles later my engine came apart.

i built another one.

this time i saw the engine crank move forward when the engine was revved.

it took about 500 to develop this noticeable movement.

this movement only happened when the tranny was in gear or in park but not neutral.

i took the engine out and found the thrust surface eaten and my crank grooved at the bearing contact.

i looked back at a pic i took and saw the same crank movement in the 1st engine only to an extreme.

i had a new shop build my tanny and they found my tranny to be worn and burned.

i also sent the valve body to turbo action. and they found it to be reassembled with a different 2-3 shift spring and the line pressure turned down.

now on engine three and my second tranny everything seems to be ok.

i guess my question is, what would make a torque converter push that hard into an engine? i image the valve body but maybe other things as well?

 

[AdamR]

Sounds like the converter ballooned and took out the thrust bearing. Been there, have the $3000 in receipts but bo t-shirt.

What kind of converter was it ?

 

[jaxle]

pdq 2600 stall.

 

[SGBARRACUDA]

Dang, you get my vote for "never say quit" ? Glad it worked out in the end.

 

[redfastback]

i run a pdq 2800 stall and no problems. i only had 1 bad pdq converter, but other than that they are better than b&m. sorry to hear about yours failing.