ATF in cylinders to check for ring integrity

[cancer]

My mechanic placed the engine at 1/2 TDC so that all the pistons were centered in the block. He then filled each cylinder with ATF and left it.

1 Week passed: no change in any cylinder's ATF volume
3 Weeks passed: one cylinder was down enough to see the piston,
while the other 3 cylinders remained full.

A leakdown test on the cold engine resulted in about 10%

Question is, are my chances for the engine burning oil too great to warrant putting the engine in the car?

 

[dsmturboawd]

whats the purpose of this? the rings arent expanded like they normally would because theyre cold.

 

[RuBiCaNT5X]

I've heard of adding a quart of ATF to your engine oil to clean out the block, journals/bearings, rods and pistons and then have it drained. The ATF kills seals and whatnot as well as being controversial. Other than that, I have no idea..

 

[dsmturboawd]

a local mechanic swears by adding a half qt of atf into the oil about 10 miles prior to a oil change.

whatever this guy is doing is way different than that.

 

[hostile]

Yeah the ring has no chance to seal proper when it is not at operating temp.

Run a compression check if they are all withing 10% of eachother your pretty good.

Most anytthiung above 130 warm will still run good.

 

[dsmturboawd]

take your car to a mechanic that knows what they're doing.

 

[cancer]

The purpose of this is a "quick and dirty" way of predicting the ring's ability to hold pressure without bolting on a head.

If they leak the ATF (thinner than oil) rather quickly, then chances are your engine is crap.

 

[dsmturboawd]

hrmph, well ok i guess.... Wait, did you say quick? in your original post you said 3 weeks.

this atf "test" is lousy IMO. just put the motor together and do a compression test after you have properly broken in the motor.

 

[RipperXX]

Yea and um if I were you I would flush it as soon as possible with some cheap conventional oil.. then change the filter and put some synthetic in.

 

[dsmturboawd]

i wouldnt put synthetic in until the motor was fully broken in.