#6 cylinder fouling

  • Thread starter Thread starter Anonymous
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Anonymous

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Greetings All-
Trouble with my 66 Ranchero 200cid motor with a C4. My #6 cylinder is fouling out. :evil: We can travel about 40mph with no problems, but forget the freeways. No visible smoke during operation, a little at startup. Wet Dry comp test shows #6 is a bit lower pressure than the rest, but not massively (10-15 lbs). Any suggestions? :idea: I've been told it could be the rings or valve seals. Gotta love the neighbor "motorheads." :? .... it could be cancer or it could be a cold. The trans shop said it is not the modulator backing up through the vacuum line.
My IRS refund check is on its way and I want to fix this soon. Thanks!

-Dave
PS, Harleys I know, Ford sixes I don't!
 
Dave,
Bought a 63 Ranchero with a 68 200 in it. The individual told me the #4 cylinder plug fouls out from time to time. After I pulled the head, I found the top ring was broken and riding. Unfortunately, it was that way for some time and left a ridge. With the lower compression, that just supports the fact.
Gary
 
all my plugs foul out in a month ges all my rings are bad :? :roll: :)
 
Thanks for the tips guys. Guess I'll pull the head and take it to my favorite head shop.
Dave
 
uhhhhh..... I meant machine shop. I quit going to the other place years ago!
 
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