Seafoam?

It took about 3 treatments in my '93 before it didn't smoke like a freight train.

Afterwards I took it and had a "professional" induction cleaning performed. There was no tell-tale smoke and the guys thought they did it wrong and only charged me half-price. :D

After the modified intake was installed, there is a oil separator on the PCV line and no EGR - the intake should stay much, much cleaner. ;)

As for the removed intake, it wasn't "Oxy-Clean", but there was no carbon build-up.
 
XLRVIII said:
look in the center of your intake manifold there is a vacuum tree that feeds vacuum to the brake booster.

most use the line coming from the brake booster to the intake.

*tip* get a smaller section of hose that fits INSIDE that brake booster line and it'll make it easier to manipulate and get teh seafoam out of the can.
Click to expand...

So just put the hose right into the can? And use the entire can?
 
sal329 said:
So just put the hose right into the can? And use the entire can?
Click to expand...

If I recall, you use about 1/3rd of the can and dump the remainder in the fuel tank. Use a small container to pour ~1/3 of a can into and suck it into the intake. Use the remainder to treat a tank of fuel.
 
I used a full can on my high mile intake, the second time I did seafoam I put two cans in.

overkill.. maybe!

Car definately ran better afterwards and smoked like "nobody's business".
 
The advice I got was to change spark plugs afterwards. So I did, and the car drives so much better. Plugs alone can do that but I feel the seafoam had an immediate impact, if for no other reason than "Tommy said so" :)
 
I just picked up 2 cans. First treatment for my new engine I think.. not sure if I did it before or not :)
 
I'm not sure how much "scientific" backup there is to the smoke= carbon build up "theory". I ran it through 3-4 different cars... each time I think there was only phsycological benefit.... I have not had a better idle etc...

But the "smoke show" and the fact that you're "stepping on it" afterwards gives you an ego boost...


That said my Vette really didn't like the sea-foam and almost didn't start afterwards... then threw a check engine light and sounded like I lost a valve... with major knocking I almost **** my pants.

Thankfully it cleared up after a couple of min...
 
first time I seafoamed my car, I changed the plugs afterwards, the plugs I pulled out of the motor looked brand new.

I'm guessing/speculating the seafoam cleaned the plugs as well.

subsequent seafoam treatments I just left the plugs in place until the "next plug change interval".

car definatly ran better..
 
I used Seafoam on a friends old MG. Like Tommy said, the plugs were very clean after the treatment. I wouldn't worry about keeping the same plugs in the engine.

Also, since the plugs were so clean, I have to believe that the combustion chamber, pistons and valves were cleaned some too.
 
I was really suprised at how clean the plugs were, I had about 40K on them and they were due for changing..
I got the new plugs and when I pulled the old plugs.. if it wasn't for the "oil" on the upper plug I would have had a hard time telling the new plugs from the old plugs.
 
I did my '98 LSC a week or so ago. It was beginning to give me starting problems (sticking IAC???). Since Seafoam treatment, no more starting issues. I put 1/3 can through the vacuum line as directed - twice. The last third in the gas tank. I didn't have the courage to add 1/3 to the oil though. Quite the smoke show too. Got mine at NAPA on sale.
 
Which vacuum line? The fat one in the middle of the intake manifold connected to the metal line going to the power booster? I want to be sure I use the correct one.
 
93LINCMK8 said:
Which vacuum line? The fat one in the middle of the intake manifold connected to the metal line going to the power booster? I want to be sure I use the correct one.
Click to expand...

yes correct.
What I did was got about a foot of vacuum line from the autoparts store that would neatly fit INSIDE that fat hose..then sucked the seafoam into the smaller hose.

made it alot easier to manipulate.
 
I like Seafoam a lot! :) I usually run two whole cans of the stuff with a full tank of fuel every 5k miles or so. I have had better results with it than any fuel system cleaner in my cars. And believe me, I have tried them all. It is the only additive/cleaner I use now, in both the Mark and Mercedes. Makes the engines run so smooth you need to check the tach to make sure they are still running. :)
 
i added it to the by removing the vac line that goes on the pcv valve on the drivers side head. i also added maybe 1/5 of the can to my crank (put it where you add oil) also on the drivers side head.
 
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