C4 question/ stalling motor

[bax]

OK. compression and leak down tests pretty much told me I have head problems. Pulled both heads. I have 3 badly overheated intake valves. The vehicle had several vacuum leaks when iit got to me. I wonder if the owner leaned it out and got it hot. I am going to throw on a set of heads and see what happens. Thanks for the help.

 

[bax]

Well just to add to the story. I never got the heads back on the engine. I went to replace the timing chain. Figured might as well do it now. I was pulling the balancer off and noticed the endplay on the crank was huge. In short the thrust bearing on the main was shot. The crank was worn out too where it hits the thrust bearing. So needs a new crank. Plus now the transmission gets to go to the rebuilder to find out why so much forward pressure from the torque converter??? So my hunch was kinda correct. The trans was stopping the engine, kinda.

 

[pcf_mark]

Bax - it takes some real work or high miles to wipe out a thrust bearing! Sounds like your engine had some internal issues too bummer. Do you have the engine mid plate installed? Without this the trans can be pulled tight to the engine and force the converter up against the flex plate/back of the crank.

 

[DirtDonk]

Or if it was in front of a manual trans and the owner liked to ride the clutch at traffic lights, this could accelerate wear as well.
Especially if "extended" oil change periods were followed as well.

Paul

 

[bax]

Automatic trans so no clutch riding. I am guessing broken stator in the torque converter. Mid plate was installed. new crank on the way, trans at the rebuilder shop.