[rooster992]

I put a new motor in my cj it has hei and howell injection #2 & 3 sparkplugs keep carbon fouling did a compression check and all cylinders read around 160 any ideas?

 

[Doc Holiday13]

Try seafoaming it

 

[rooster992]

what the heck is seafoaming it

 

[Schmozilla]

I have the Mopar MPI on a 258... It ended up being leeky valve stem seals letting oil into the cylender.

Seafoam is this stuff you let get sucked into the engine that cleans carbon build up out.

 

[Doc Holiday13]

what the heck is seafoaming it

Seafoam can be bought at any auto parts store You simply slowly pour it down your TB or carb while the engine is running, slow enought to not stall the engine. You can put it in you gas tank too.

 

[rooster992]

ok will try that new one for me i thought maybe the valves were not seatin but the compression check proved it wasn't.