Ford 9N, 2N & 8N Discussion Board|
Re: # 1 spark plug carbon fouling
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Posted by Rob on July 04, 2003 at 04:03:11 from (188.8.131.52):
In Reply to: # 1 spark plug carbon fouling posted by Rick B. Silverton OR on July 03, 2003 at 23:14:43:
I see carbon fouling but not on that plug.
Interesting theory, sounds like you suspect a bad or missing tstat. Easy to test. 160 degree stat and it inserts into the top radiator hose down close to the engine. Bimetal temp sensing element on the engine side. Check yours.
Get a hotter plug too. Stock was Champion H10 and guys go with the hotter H12 to reduce fouling. Only need to change one.
Hold that spark plug boot next to some metal and check for a regular hot spark. I have one of those $1.69 plastic spark plug boot puller thingies that I dug out to use on my N, forgot I had it. Now I can manipulate those plug wires without getting BIT ALL THE TIME! Love it.
If a GOOD spark isn't there EVERY time and COMPLETELY regular you need to check the plug wire or even get into the distributor.
The N has been known to run pretty much just fine, from most all outward appearances, with one cylinder awol so don't be too surprised if that cylinder is missing or only participating in a half-hearted manner with a weak spark compared to the others.
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