Is it ok to pour Oil down your spark plug hole? b/c someone told me to do that and take a compression test... but to me that doesnt sounds right. just curious if i was lied to or not. he said just very very lil oil down spark plugs hole. granted i've already removed the spark plugs.

 

yes you can....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Girlzcn2 &raquo;</TD></TR><TR><TD CLASS="quote">yes you can....</TD></TR></TABLE>
is there some sarcasm there b/c i cant tell... i dont want to ruin my motor. so please be serious.

 

shouldn't be anything wrong with it...just dont fill it up ya know? as soon as you start the engine, you'll shoot some white smoke out cause your burning oil...but be prepared to get some new plugs just in case yours foul up

 

Why would you want to do that anyway??

 

It's fine to pour just a VERY small amount, but you shouldn't do it for a compression test. It'll make your test results show more compression than you have an hide possible problems with the car. It's really only something that I'd do if I had already noticed that a cylinder had low compression and I wanted to confirm that it's a ring problem. Otherwise it's pointless, silly, and if you put too much could be harmful.

 

You don't want to use the oil method at first, it is only used as a diagnosis tool. Initially, just perform the compression test in the normal manner, and record the results. If the numbers are all relatively close, you don't need the oil.

However, if one or more cylinders is reading low, you can try using the oil method as a simple diagnosis: Pour roughly 1 teaspoon of oil into the cylinder that you're testing (only the one with the low compression number), then do the compression test again. If the test numbers improve for that cylinder, then it's highly likely that your rings are the problem. If they don't improve, the probably probably lies in the head (e.g., valves).

 

My boss did this the other day but he used tranny fluid.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CBRF4i &raquo;</TD></TR><TR><TD CLASS="quote">My boss did this the other day but he used tranny fluid.</TD></TR></TABLE>

brake fluid would have worked better

 

ok thanks alot H-Ters!

brake fluid... tranny fluid... what!!!