lo compresssion?

[Bd4mp-dub]

i ws lookn at the classifieds n seen a 95 2dr impreza for only a grand. it has low compression n the #2 cylinder. jus wonern how much something like wood cost to have fixed. thanks

[massdrewski]

from what My tech friend said. Not too much...if you do the work your self. Basically take the #2 piston out and put new seals in.

Ever wonder why older trucks feel so sluggish? Low compression to name a few things. I think that if you are going to do the #2, and with the block cracked, it might be worth it to get new seals all the way around. that way it is all perfect. find a local subie-freak to help get the job done if you are not sure how to do it.

Before you do it, do a compression check to see what you are dealing with. your Haynes manual will show what the compression should be. a Leak down test (to check the heads) is also a good idea. The compression test to do is a 2 on a scale of 1-10. Just get the tool (borrow from someone), take the spark plug out. Disconnect the Power to the Coil pack (on top of the intake where the spark plug wires connect too. Once that is disconnected, spark plug out , screw the compression tool in. Crank the engine for about 5 seconds and the guage will show what the compression is. The bitch about it is doing the spark plugs again. But while you are under there it will let you see what condition the plugs are. My friend always replaces the plugs when he does the test. Why do it twice.

Good Luck!

[green97gt]

more appropriate would be a leak down test..

a compression test can only show which cylinder is low, a leak down will tell you if it is the intake/exhaust valves piston/rings or even a head gasket.

you need a leak down tester, you put the questionable cylinder at TDC compression stroke so all valves should be closed, hook the leak down tester up to an air compressor. this will pressurize the cylinder, then you listen for air escaping from the intake, the exhaust, the dipstick, and or into the coolant..

much mor effective at locating the damaged parts.

[jey]

more appropriate would be a leak down test..

a compression test can only show which cylinder is low, a leak down will tell you if it is the intake/exhaust valves piston/rings or even a head gasket.

you need a leak down tester, you put the questionable cylinder at TDC compression stroke so all valves should be closed, hook the leak down tester up to an air compressor. this will pressurize the cylinder, then you listen for air escaping from the intake, the exhaust, the dipstick, and or into the coolant..

much mor effective at locating the damaged parts.

+1. You can't assume it's a bad piston, it could be low due to a bent valve.