I have posted several time about my car loosing oil. well I did a compression test the other day and found 126PSI in #6. This being said I just bought a new engine. 59K miles $450. I am using the oppertunity to change out my clutch disc while I am in there, as well as filling my motor mounts with poly. Anyone have any other suggestion of things to do with the engine out? Also can anyone think of a reason that the place I am getting the engine from would be charging me a $50 core charge when buying a used engine? this sounds like a crock of ****.

 

D@mn sorry to hear that. Did your car give any signs that the motor was pooped, stumbling hesitation, lack of acceleration etc.

Best of luck

 

it has a slight problem while driving on the highway, it will hesitate for just a sec every now and then but it is unrelated. I think it is the TPS. it still runs like a scalded dog.

 

PM SeximaGTR, I know he just bought a new motor and he is a real good guy to get advice from.

 

What was your compression in all the other cylinders?

Dave

 

145-150. why you know something I dont?

 

126 in one compaired to 145-150 in the others might not be a problem. You should have done a leak down test or repeat the compression test again at different operating temperatures and then compair all the data you collected.

 

140-150 is on the low side all round, it seems. Are you sure you did the test right?

- Use a screw-in tester, not a hold-in tester
- Ziptie the throttle plate wide open (or floor the gas pedal)
- Put a little bit of oil on the threads for a better seal
- Then drop a teaspoon of oil in the cylinder and repeat the test

 

So they can have your engine possibly rebuilt so it 'works' enough to sell it to someone else. Just their way of turning a profit into more of a profit.

 

Plus they can sell the heads, oil pan and other non-damaged parts, etc and then melt the block for scrap.

 

it's just the fact that they are charging my a "core" charge. wich by definition means i am buying a rebuit product which I am not. I am purchasing a surplus product.

 

I think the compression, while a bit low, is okay. It's really not how high the numbers are, it's how consistent the numbers are across the board. I could have sworn that compression between all cylinders should be around 10-12%. Your cylinder #5 is about 13%.

I would have done all the tests above and even run on a dyno and done some more track testing. I fear you just purchased a replacement motor you really didn't need.


Dave

 

didi I mention that I am loosing a quart of oil every 3-4 days?

 

where from?

 

Burning or dripping?

 

burning oil

 

Do you see blue smoke when you startup in the morning and does the exhaust smell clean? Has the car ever been driven while overheated? Could be a gasket issue.