I was having a weird hissing noise coming from the head, seemed to be by the exhaust port. So i decided to do a compression test yesterday. My results were.
1 - 185
2 - 183
3 - 189
4 - 75
So some feedback from you fellow r3ver's what it might be. 245k miles, car gets about 20-24 mpg. Starts within 3 cranks every time in the morning. No smoke when starting. I go through about 1/4 quart of oil about every 2 months. If i WOT the car runs rich with a little black smoke at 6k up. Also the coolant looks good, goes up to 3/8 then back down to 1/4 when cooling down. So im thinking the rings but it doesn't seem like it. I have a spare engine i've been working on but i've been taking my time cause of my previous m20 failure i had 2 years back. So i really dont want to replace just yet.
TDLR
1. Rings
2. Valves
3. Head gasket
-brandin
1 - 185
2 - 183
3 - 189
4 - 75
So some feedback from you fellow r3ver's what it might be. 245k miles, car gets about 20-24 mpg. Starts within 3 cranks every time in the morning. No smoke when starting. I go through about 1/4 quart of oil about every 2 months. If i WOT the car runs rich with a little black smoke at 6k up. Also the coolant looks good, goes up to 3/8 then back down to 1/4 when cooling down. So im thinking the rings but it doesn't seem like it. I have a spare engine i've been working on but i've been taking my time cause of my previous m20 failure i had 2 years back. So i really dont want to replace just yet.
TDLR
1. Rings
2. Valves
3. Head gasket
-brandin
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