Power Aids

i know this is kindo of a lame question but...

when you're testing your compression does it matter if the engine is hot or cold?

thanks.

DAVID GRIMES

It should be warmed up. Usually you'll crank cold and get some smoke and heavy cologne until it gets warmed up... the stock choke will have have turned off by then ( if you still have one... I don't ). Then turn it off and test your compression. See all the great threads by using the search.

DAVID GRIMES

compression question

Hey, that rhymes... like Grimes

nick1

^ dork ^

Rx7carl

Not lame at all. Cold compression is higher than hot compression.

Power Aids

oh nooooooooooooooooo


i was under the impression cold compression was lower than high compression.

.....anyone have a 12a they wanna sell?...............................

BadAssRX-7

Carl sorry but i have a mazda tester and just for ***** and giggles i did a cold and then a hot test. I saw around 17 psi more on the hot tests.

Rx7carl

Well thats what RB, Mazdatrix and Mazda have said. I swear I didnt make that up!

Power Aids

oh see i got around 65 or so on all sides of the rotors so i figured it must have been allright.
also it wasn't a mazda tester just a regular one, i'm not sure if that makes a big difference but it's probably less accurate.

thakns.

DAVID GRIMES

You calling me a whale *****, Nick ? I represent that remark.

shm21284

Cold compression is higher because cold air is denser. The denser the air, the higher the compression will be. You may be getting higher compression readings because a hot engine's internals are warmer, and expanded, and possibly sealing better. All the tolerences on a hot motor will be tighter than a cold motor. Theoretically, a cold engine should have higher compression, though.

nick1

i really didn't understand that a "dork" is a whale's *****...so i checked google...

... Believe it or not, this is the first time I've ever seen a whale *****: ...
A whale's *****' official name is "Dork". How dorky is that? ...
www.planetdan.net/blog/2004/12/yowza.htm

damn....i will never laugh or make fun of you again......i have been "O3NED"!! sorry dude!!!

nick

nick1

by the way, by calling you "dude", i AM referring to "a pimple on a horse's ***"

Rotor13B

You just totally contradicted yourself.

Supper

next time he should just call you an "oosik"

nick1

Oosik Ulus
... Our Oosik handled Ulus are made with ancient Walrus Oosik (Male Walrus *****
bone). Most have beautiful dark and or light brown color. ...
http://www.scrimshop.com/shopcart/it...sik_ulus1.html

how the hell do you guys know this stuff? i mean for what reason have you been studying dorks and oosik's?

DAVID GRIMES

Nah, cause if he calls me that, I'll call him a two word something like bloated lackey and he'd spend all night googling to find out what he is.

DAVID GRIMES

Well, because... We keep our friends close, but we must have intimate knowledge of our competition