What would have caused this?
What would have caused this? Transmission developed a leak so I pulled it. Couldn't get the converter off without some force and noticed this.
Pump bushing installed wrong? Converter issue?
Pump bushing installed wrong? Converter issue?
It's not rocket science.
Something out of alignment, run-out, grounding issues, clogged cooler, etc.
Dowel pins missing in the block to align the trans when bolted up? Did the builder drill the drain hole in the pump to 1/4 to 5/16"? How is the flexplate?
Is it true? You have two sizes on a 4l80e on pump bushings, (thickness). A 3/8" ground from the block to the frame helps electrolysis from occurring... Hnece the bits and pieces from bunching up and causing failure like you have... Just some experiences....
Is it true? You have two sizes on a 4l80e on pump bushings, (thickness). A 3/8" ground from the block to the frame helps electrolysis from occurring... Hnece the bits and pieces from bunching up and causing failure like you have... Just some experiences....
Dowel pins are there. Not sure on the drain hole. Flexplate "looks" good and was the same one I used when it had a stock 80E in it as well.
A little more info on everything. In 2014 I sold the car with a stock 80E (minus HD-2), single disk circle-d, and a stock PCM in the car. The person I sold it to had the trans rebuilt with some better parts and sent the converter back to Circle-D to be upgraded to a multi disk.
I bought the car back a little over a year ago and ran it at the track a couple of times before winter hit. Last year I installed a MS3-Pro system in the car and did away with the stock PCM. I ran the car all year and put a few thousand miles on it without issue. The last race I attended I made 3 passes and noticed a pretty heavy trans fluid smell after my last pass. When I took it off the trailer the next day it was spewing fluid out pretty good so I parked it and haven't driven it since.
Thinking back on this last year, I did notice a trans fluid smell on occasion after a pass and a few times the trans got well over 200* for some reason. It would cool back down pretty quickly so I didn't think anything of it and driving it on the street it never got over 190* no matter what I did.
With that being said, I obviously don't know if something was hurt or not installed right (by the trans shop) when I bought the car back, or if it was a grounding issue when I changed over to MS3-Pro, or anything else that may have caused it. The cooler setup remained the same, the flexplate remained the same, all the grounds were the same, etc.
I am going to assume that I will need a new pump though? Would it be a good idea to have the trans completely torn down and looked at as well?
Thanks all.
A little more info on everything. In 2014 I sold the car with a stock 80E (minus HD-2), single disk circle-d, and a stock PCM in the car. The person I sold it to had the trans rebuilt with some better parts and sent the converter back to Circle-D to be upgraded to a multi disk.
I bought the car back a little over a year ago and ran it at the track a couple of times before winter hit. Last year I installed a MS3-Pro system in the car and did away with the stock PCM. I ran the car all year and put a few thousand miles on it without issue. The last race I attended I made 3 passes and noticed a pretty heavy trans fluid smell after my last pass. When I took it off the trailer the next day it was spewing fluid out pretty good so I parked it and haven't driven it since.
Thinking back on this last year, I did notice a trans fluid smell on occasion after a pass and a few times the trans got well over 200* for some reason. It would cool back down pretty quickly so I didn't think anything of it and driving it on the street it never got over 190* no matter what I did.
With that being said, I obviously don't know if something was hurt or not installed right (by the trans shop) when I bought the car back, or if it was a grounding issue when I changed over to MS3-Pro, or anything else that may have caused it. The cooler setup remained the same, the flexplate remained the same, all the grounds were the same, etc.
I am going to assume that I will need a new pump though? Would it be a good idea to have the trans completely torn down and looked at as well?
Thanks all.
