WTF is going on here?
WTF is going on here? So had my car dynoed th eother day. 66 nova with LQ4 and a BW S475. After did a few pulls on the freeway as anyone would. When I got home, I noticed crankcase smoke coming from my catch can. I pulled all the plugs and they are fine. I put fresh ones in and the smoke still puffs constintly. I drove the car around a bit, the power seems fine, no missing or anything but it still keeps puffing this smoke. Its more that usual, im not just being worried about nothing. So last night I pulled the hoses off of the catch can, 1 per valve cover, it seems the smoke is only coming from the driver side. I pulled the valve cover and started the engine to see where the smoke was coming fro, it seems to be coming from the crankcase area. So then I did a compression test on the driver side, and all cylinders were between 100 and 118 besides #3. 3 is at 91. Still not a HUGE difference. I checked the pushrods and they are all straight. HMMMMM.
Broken ring land
Blown Head Gasket
Bad Valve
Whitch one guys? [/SIZE][/SIZE]
Broken ring land
Blown Head Gasket
Bad Valve
Whitch one guys? [/SIZE][/SIZE]
Compression difference between cylinder #3 and the other high one at 118 (we compare compression differences from the highest to the lowest) is 29.6% Id say that is pretty HUGE.
Sounds like that is your problem.
Sounds like that is your problem.
I understand, all I was refeering to is if it still is at 90 psi then I dont think it could be a broken piston. If the piston was broke, I would think I would see around 50 psi or less.
Looking at the facts here....The smoke is coming from the valve cover? Pull the valve cover and take a look.
If you had blow by, a cracked pistons, etc etc. You would have a loss of power, smoke through the exhaust...I don't think thats the issue.
#3 compression is concerning considering the other 7 are 118.
If you had blow by, a cracked pistons, etc etc. You would have a loss of power, smoke through the exhaust...I don't think thats the issue.
#3 compression is concerning considering the other 7 are 118.
Looking at the facts here....The smoke is coming from the valve cover? Pull the valve cover and take a look.
If you had blow by, a cracked pistons, etc etc. You would have a loss of power, smoke through the exhaust...I don't think thats the issue.
#3 compression is concerning considering the other 7 are 118.
If you had blow by, a cracked pistons, etc etc. You would have a loss of power, smoke through the exhaust...I don't think thats the issue.
#3 compression is concerning considering the other 7 are 118.
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