my first compression test. please advise how to

Any tester should do. A lot of variables to get the best psi numbers. The figures themselves are mostly useless. Pretty much looking for a stable range across the board using the same tester.

 

Its the one that says " FUEL INJ " in the small fuse box near the drivers side shocker tower.

Just whip that one out.

 

Do you know how much fun it is to get the extension adapter out when it decides to unscrew and leave itself attached to your plug thread?

About as much as getting the spark plug spanner grommet off the back of plug.......:rofl:

 

Depending on ow long the extension is rob, that may be a pain on #6, not a straight short at the plug there.

 

Does the ptu need to be attached? Or can I pull it and cut the plugs off get it ready to sell?

 

Cylinder 1- 145 psi
Cylinder 2- 142.5psi
Cylinder 3- 132.5psi

Cylinder 4- 145psi
Cylinder 5- 140psi
Cylinder 6- 145psi

If I remember correctly thats about what the engine was when I got it ~10, 000 kms ago. All 140s with one cylinder down in the 30s.

10psi out ok?

 

If it's a T.T. the compression figures are acceptable.

T.T. - Standard 171psi Minimum 128psi

If it's an N.A. they're not very good at all.

N.A. - Standard 186psi Minimum 142psi