putting in new piston rings

87hilux7mge · 05-07-2011, 07:22 PM

id assume its the same, never dont small motor tests. ull need a compression tester (any chain auto parts store), the screw in kind is more accurate.

take all the plugs out, hook the starter up to a battery, put some oil into each cylinder through the spk plug hole (just a lil), install the compression tester into the first plug hole, crank the motor over 6-10 times, or until the pressure gauge levels off. repeat process for remaining cylinders.

anywhere between 150-180 is good. but you want to see them all within 10psi of each other. any more variance and you want to find out why they are lower. a leak down test is also a good idea.

05-07-2011, 07:22 PM	#13
87hilux7mge walbro fp Join Date: Dec 2010 Location: spokane Posts: 479	id assume its the same, never dont small motor tests. ull need a compression tester (any chain auto parts store), the screw in kind is more accurate. take all the plugs out, hook the starter up to a battery, put some oil into each cylinder through the spk plug hole (just a lil), install the compression tester into the first plug hole, crank the motor over 6-10 times, or until the pressure gauge levels off. repeat process for remaining cylinders. anywhere between 150-180 is good. but you want to see them all within 10psi of each other. any more variance and you want to find out why they are lower. a leak down test is also a good idea. __________________ 87 toyota 4x4 single cab short box pickup, 7MGZE.