So I was bored the other day and decided to check the compression on my 360. My lowest reading was 132psi and highest was 150psi. I thought those were pretty decent figures for 196,000 miles?

 

Great numbers for that mileage. That was dry I assume? Did you follow with the wet test?

You must have been REALLY bored.....

 

good numbers!

does it have any problems?

 

Yup, that was dry. Good enough for me I figured, so I never did a "wet" test.

No problems whatsoever. Original owner, original motor, trans, diffs, tc, you name it. Even the plenum gasket hasn't been touched. I have done oil changes myself every 3K, and when you add that up, **** , that's a lot of oil!

 

For them mile's your doing great. I'd bet if you tore it apart the cylinder wall's would still be showing the crosshatch pattern. Excellent.

 

how do you do a compression test ?

 

buy a compression test gauge, remov your spark plugs, unplug the coil, pull fuse #9.

Hook up test gauge in place of a spark plug, turn engine over and check results on gauge.

Jot them down the psi plus the cylinder number, and do all eight.

 

That explains it then :P that was your wet compression numbers you got jk.

 

lol! Seriously though, current spark plugs have 45,000 miles on them and they looked new!