4 speed

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

Roughrider

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.

4 speed

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

Dean_Fuller

See what the plugs look like on that side.

CA-Legal-Vette

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.

4 speed

gonna try to work her so today, no smoke or burning oil, not even at start up after sitting

will up date when I check the plugs

billschroeder5842

I used some SeaFoam today. I'm not sure if it works or not, but I love the exhaust smoke and that it pisses my neighbors off.

4 speed

never saw any smoke, even when I first added it to the tank.

it definitly smoothed out my carb.

xpoc454

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.

7T1vette

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.