
Originally Posted by
spyghost
hi,
i have an 8 year old distributor. i am experiencing spark plug fouling. i have hard starting whenever the engine is cool, regardless of the time (day or night), but worst in the cold morning.
after the cracnk, the engine seems to be coughing. i have to pump the gas pedal several times up to WOT. although i am using a carb engine, the accelerator pump is working perfectly well. gas delivery is very sufficient. i have the right a/f mixture.
i took the plugs and i saw that the ground strap is coated in black. the ring is black too, with some traces of oil i think.
i changed by plugs this after, and i will still see what's going on.
the manual of the car suggests to use denso w16ep-u. but due to inavailability, i used denso k20pr-u11. the only noticeable thing here besides the hex size, is the heat range.
the manual suggest to use a heat range of 16, but i plugged in a 20 (from denso).
what else do i need to look at here?