[e_a_u_c]

hello i will like to know around what should be the piston psi thanks

[ign335i]

Originally Posted by e_a_u_c

hello i will like to know around what should be the piston psi thanks

Are you talking about a compression test, or?

[enrita]

Well its almost impossible to have low compression on all cylinders and if 1 is down is gonna be pretty obvious.

[Jeremy]

All cylinders should be within 10-15 pounds of each other if not you have a problem.

[e_a_u_c]

ok i did acompression test and all 6 are between 74 and 81 psi is this normal?? i knw they have to be arround 10 psi apart or less but this numbers look way to low help

[TenshiWingusu]

Originally Posted by e_a_u_c

ok i did acompression test and all 6 are between 74 and 81 psi is this normal?? i knw they have to be arround 10 psi apart or less but this numbers look way to low help

Did you do the test dry or wet?

[Dave W.]

That's way off. If you do the compression test correctly, comp readings should be around 165-175. To do the test right, pull all plugs out, unplug the injectors so they don't squirt fuel when you're cranking, and crank it until you head 5 'bumps' in the engine rotation. You have to push the 'Start' button to stop the engine too.
GL HTH

[e_a_u_c]

thabks everyone i had a problem with the timing so after putting the engine on time i got
cyl1 150
cyl2 150
cyl3 150
cyl4 148
cyl5 150
cyl6 150

[Jeff@TopGearSolutions]

Looks pretty consistent.