Dugzy33
Member
Doing a little at a time with my gt40 head/intake swap.
Need some ideas on what is going on here...
1995 gts
original 5.0 never opened up 165K miles
When I bought it noticed upon hard acceleration (2500rpm and above) a light blueish/brownish/whitish smoke
from tailpipe.
I wasn't too worried as It runs good.
changed o2 sensors no change
did tune up
#7 cylinder plug approaching foul
changed plugs wires etc
still blows smoke
still runs good, idles good, etc
seems to use a little more oil than my last 5.0
So I don't worry about it hoping it is a valve seal issue that will be solved when I put on my newly rebuilt gt40 heads.
So I pop the driver-side head today and this is what I find...
Still see some cross hatching in the cyls
# 7 piston is clean (?)
other pistons are not (expected this)
other exhaust valves are white (expected this)
#7 is not (?)
Kinda thought I would see carbon build up on # 7 more than the others
Here are the pics...
So what is the deal here?
Need some ideas on what is going on here...
1995 gts
original 5.0 never opened up 165K miles
When I bought it noticed upon hard acceleration (2500rpm and above) a light blueish/brownish/whitish smoke
from tailpipe.
I wasn't too worried as It runs good.
changed o2 sensors no change
did tune up
#7 cylinder plug approaching foul
changed plugs wires etc
still blows smoke
still runs good, idles good, etc
seems to use a little more oil than my last 5.0
So I don't worry about it hoping it is a valve seal issue that will be solved when I put on my newly rebuilt gt40 heads.
So I pop the driver-side head today and this is what I find...
Still see some cross hatching in the cyls
# 7 piston is clean (?)
other pistons are not (expected this)
other exhaust valves are white (expected this)
#7 is not (?)
Kinda thought I would see carbon build up on # 7 more than the others
Here are the pics...
So what is the deal here?