Rough running after Sea Foam bath

[photogod]

So I poured Sea foam very slowly down the carb and let it smoke a bit. Just to the last 5th of the can and the engine kills. I let the Foam sit for 5 mins. and restarted. Nice cloud of smoke and a bit of a back fire. Then the thing ran like ka ka. Put new Denso plugs in before the foam and it seemed to run better with the AC Delco plugs. Gapped them to 31 like the manual said. As the engine was running at idle I started to pull the plug wires and cyl 2, 3, and 4 made no difference in the idle only 1, 5 and 6 changed the idle when pulled. The thing ran pretty good except for a slight hesitation before the Foam and now I can't even get up my driveway it is running so rough., Would an engine backfire or two have any effect on engine timeing? I am installing new plug wires and PCV and gromet tonight after work and will see if that helps at all. I have already put cap, rotor, plugs, vac hoses, air cleaner, oil and filter in this thing. My dumb luck (operative word being dumb) I blew a head gasket. I still have a slight exhaust leak but I couldn't tell where it was comming from when the smoke started. Any sugestions appreciated other than telling me I Fu up! That much I know.

 

[Lizrd]

not uncommon

Sometimes seafoam-like teatments will dislodge bits of carbon and grahdu in the intake system, and these small chips become lodged in the sparkplug gaps. Best practice is to install new plugs after a treatment, not before. Pull your misfiring plugs and inspect them for debris. HTH

Dave

 

[lowtideride]

Ive cleaned carbs before and knocked more junk down into them which made the truck run bad...I had to open it back up and clean it out more...soak it in carb cleaner and sea foam. You prob just nocked some junk somewhere....I'd try more sea foam.

 

[Doc]

Sea foam will loosen carbon deposits (as pointed out) and very often will foul plugs. I bet your new plugs are now bad.

Always install new plugs AFTER a sea-foam treatment, not before.

That being said, I bought new plugs for my Honda and then sea-foamed it. It actually ran BETTER after the sea-foam and so I have not installed the new plugs.

 

[Jman]

I vote the party line.

 

[Rollin'in'Zona]

I recently did the Sea Faom treatment on an FJ62 w/ 180,000 miles, via the brake booster vacume line.

I used 3/4 can, drove the truck for a few days, then ran another 3/4 can. After each treatment it ran rougher and was a bit more noisy. Changed plugs, adjusted valves, and it purrs like a kitten

 

[sl33py]

it's amazing how easy it is to spot an exhaust leak when your doing a sea-foam...lol.

 

[lowtideride]

it's amazing how easy it is to spot an exhaust leak when your doing a sea-foam...lol.

haha, word.

 

[photogod]

Not so easy to spot the exhaust leak when you can't even see the manafold...

 

[photogod]

Pulled the plugs last night and cleaned them off. #2and 3 were new white and the rest were black. Put new spark wires on and cleaned the rotor off caus it had really rough tip. Two clicks on the choke, pumped the throttle three times and turned the key, the engine didnt even turn once and started right up. Runs like a top. Didn't think the wires would be bad with only 83000 on her. Thanks for the advise all.

 

[sl33py]

Not so easy to spot the exhaust leak when you can't even see the manafold...

BUT - you know its there! lol.

 

[photogod]

Darn right. Every time I accelerate I hear the tic, tic, tic of ther exhaust escaping the gasket. If I fix that I will have nothing else to fix. Guess I'll have to get a lift, ARB bumper, winch, rear tire mount bumper.............