[V8] Seafoam

[Buchholz, Steven]

... well I did find that I had to replace the cats to get the car to pass smog last year ... Seafoam?  perhaps ... 15 years of use? perhaps ... in hindsight it might not be bad to find some "empty" cats to run the Seafoam out of the engine.  I don't know how big the "chunks" would be ... 

 

Steve B

San José, CA (USA)



Did you notice any issues with clogged Cats or larger chunks (dust, or larger) carbon emanate from the exhaust pipes?



Would you recommend removing the exhaust during cleanout to protect the cats?  What is the opinion on this?



I'm concerned that large pieces of carbon could damage the aluminum cylinder walls.



I may take this option, just to see what will happen.



Scott.



--------- Original Message --------



... I followed the directions on the can.  In my case I did not pour it 

into the tank, but sucked it in via the intake.  I pulled off one of 

the vacuum lines for the vapor canister to introduce the Seafoam to the 

engine.  As I recall I warmed the engine a bit, and then sucked the 

better part of a bottle into the engine.  The goal is to suck enough in to 

stall the engine ... I found this a bit difficult to do.  I then left 

the engine sit for a few hours ... and fired it up.  Good grief, the 

motor smoked for quite some time, but once the stuff worked out I haven't 

had any oil smoking problem since ...