SeaFoam issue
Thread Starter
Pro
Joined: May 2001
Posts: 571
Likes: 5
From: usa
SeaFoam issue
I recently decided to run a bottle of seafoam threw the fuel system, it actually did smooth out the carb. but for some reason I am getting an oily subsistence out of the pass side sidepipe. I first though it was just unburnt seafoam, but it been 5-6 tanks of gas now and it is covering the rear 1/4 panel.
what gives? and why only the pass side, driver side is clean.
and all cylinders are firing
what gives? and why only the pass side, driver side is clean.
and all cylinders are firing
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Does the exhaust on that side smell kind of sickly sweet...like anti-freeze? If so, you have a bad head gasket or worse...a cracked cylinder head on that side.
You can pull the spark plugs on the right bank and see if any are wet.
You can pull the spark plugs on the right bank and see if any are wet.
Thread Starter
Pro
Joined: May 2001
Posts: 571
Likes: 5
From: usa
no its definitely not antifreeze, there is actually an oily stuff that you can dab you finger in , in the end of the sidepipe
thanks
BTW: 73 350 4 speed stock, except performer intake and sidepipes
thanks
BTW: 73 350 4 speed stock, except performer intake and sidepipes
Last edited by 4 speed; Sep 1, 2016 at 04:38 PM.
Race Director
Joined: Jul 2004
Posts: 12,676
Likes: 329
From: Scottsdale Arizona
Any smoke in the exhaust on that side? I'd guess that it was valve seals. Seafoam or ATF do a pretty good job of cleaning up sludge but they are also sometimes hard on old rubber.
Last edited by CA-Legal-Vette; Sep 1, 2016 at 07:11 PM.
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Burning Brakes
Joined: Jul 2009
Posts: 934
Likes: 20
From: Indianapolis Indiana
Mine only really smoked when I drove it around the block and stepped on the gas. But when I got back to my driveway after a few runs around the block. I let it run in driveway and had a clear oily liquid leak out of where my side pipes connected to headers. I assumed it was unused seafoam and it stopped dripping and smoking after it sat for a day.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,113
From: Crossville TN
IMO, the best way to use SeaFoam is to pour 1/2 can into a fuel tank with 8 or more gallons in it, and the other 1/2 can gets 'sucked' into the intake manifold via one of the manifold vacuum hoses (line feeding the vacuum reservoir, etc.). You just rev the engine to about 2k rpm and stick that hose down to the bottom of the SeaFoam can.
Then you can see the [white] smoke roll and filthy up whatever is behind the car with all the collected carbon junk out of the combustion chambers in your engine.
Just putting it in the fuel tank will do a good job of cleaning the carb and fuel lines. You may get some of the collected carbon deposits out with that method; but most of them get dislodged when you suck it into the intake directly at elevated rpm. In essence, it is like 'steam cleaning' the engine from the inside.
Then you can see the [white] smoke roll and filthy up whatever is behind the car with all the collected carbon junk out of the combustion chambers in your engine.
Just putting it in the fuel tank will do a good job of cleaning the carb and fuel lines. You may get some of the collected carbon deposits out with that method; but most of them get dislodged when you suck it into the intake directly at elevated rpm. In essence, it is like 'steam cleaning' the engine from the inside.
Last edited by 7T1vette; Sep 7, 2016 at 05:40 PM.