[SENTRASER]

ok...from the drivers side to the passengers side on the engine:
155 PSI
165 PSI
165 PSI
175 PSI

Is this bad Its on an engine with 171,900 miles....any thoughts??

 

[WhiteSER]

Just as long as they are consistent. I dont know how much the +- margin is though. Others do!

 

[redman007]

min- 149 psi max 179 no more than 10% from two adjacent cyl. this is from what I remember out of the FSmanual. so it seems your ok.

 

[jacen99SE]

That 155 to 175 difference is a little bigger than expected. Don't panic, just go measure it again and see what you get.
Engine Hot.
Relieve Fuel Pressure.
Throttle Wide Open.
Right?

 

[jacen99SE]

Forget what I said. Redman said "from two adjacent cyl. "
He was right, I forgot about the adjacent part.

So you are fine.

 

[SmoothDaddyFig]

How exactly do you do a compression check?
I think I need to do that. 142,000 MizILES!!
I have the tool for it, just dont know what exactly to do.

 

[SENTRASER]

How exactly do you do a compression check?
I think I need to do that. 142,000 MizILES!!
I have the tool for it, just dont know what exactly to do.

1. First, find your fuel pump fuse, so you don't fill your oil with gas. Then start it and relieve the fuel pressure.
2. Then remove all your spark plugs.
3. then put the compression fitting into the spark plug hole, just like you would putting a spark plug back in, be carful not to stip the hole.
4. Hop in the car and crank it over a few times, get out and record your PSI.
5. Do this for cyl. 1-4
6. Reverse the procedure to get your car running again.
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[SmoothDaddyFig]

Thanks dawg!!!!!

 

[SENTRASER]

Thanks dawg!!!!!

You are the most eccentric person on this forum Smooth...I love to see your updated pics...hehe..

 

[SmoothDaddyFig]

Glad I can crack you up.

** have you played my terrorist game? its a trip!!!

 

[Rockwood]

uhh, 179 is the max? uh oh...

i got:

195
195
190
195

is that bad? i thought it was really good....

 

[domiguy]

hey that terrorist game was pretty fun... I really like the last scene . I just wish there was a way to dodge

 

[redman007]

any thing over 179 is most definitely crazy carbon build up an the pistons/valves which increases compression unless you've got 11:5:1 pistons

 

[redman007]

those #'s are for 91-93 I don't know if they're different for later years but I doubt it.