Grey smoke...

Help Support 7173Mustangs.com:

CTGSTANG

Well-known member
Joined
May 10, 2011
Messages
78
Reaction score
0
Location
Brandon, FL
My Car
1972 Mustang Convertible red/white interior. Engine: 302 V8 w/air, upgraded Edelbrock Performer RPM Intake, Petronix, Holly 600cfm carb, power windows.
So I recently replaced the starter solenoid, changed the oil to full synthetic and I crank it up after about 1 month and it blows grey/blue smoke. It's also idle choppy up and down every couple of seconds. Never happened until now. Any ideas?


False alarm. Lol after I drove it about 10 minutes the smoke went away and drove perfectly.

 
Last edited by a moderator:

marks73

VIP Members
Joined
Jul 19, 2011
Messages
4,829
Reaction score
13
Location
Pittsburgh, PA
My Car
1973 Mach 1 Q code 4 speed
1973 Chevelle 454 SS
2005 Magnum RT
2008 Colorado
Lifter was stuck.

 

c9zx

VIP Members
Joined
Sep 30, 2010
Messages
5,345
Reaction score
273
Location
Mustang, OK.
My Car
1972 Mach 1 Q code
2007 GT
1969 Cougar Eliminator B302
CSX 7000 Shelby Cobra FIA
2020 Edge ST
2002 F250 V10
Re-torque the intake manifold using the specified sequence. Blue=oil, white=coolant, black=unburnt gas. Chuck

 

c9zx

VIP Members
Joined
Sep 30, 2010
Messages
5,345
Reaction score
273
Location
Mustang, OK.
My Car
1972 Mach 1 Q code
2007 GT
1969 Cougar Eliminator B302
CSX 7000 Shelby Cobra FIA
2020 Edge ST
2002 F250 V10
Re-torque the intake manifold using the specified sequence. Blue=oil, white=coolant, black=unburnt gas. Chuck
I have heard horror stories about using synthetics in our engines.

mike
Mike, You used the right word. That's what they are, stories. I've never experienced or seen a failure caused by synthetic oil. If a gasket is broken and the only thing plugging the gap is "gunk", the synthetic oil will eventually clean out the gunk and oil will leak. Even in this case the oil didn't break the gasket. Chuck

 

Joe

Active member
Joined
Sep 30, 2010
Messages
44
Reaction score
0
Location
Imperial Beach, CA
My Car
'72 Grande, 351C, Autolite 2100, FMX, 2.75 rear
After about one month? I'd be amazed if mine didn't express some dissatisfaction about being left idle for so long! As long as it went away, I'd say that's to be expected after prolonged disuse.

 
Top