Just used a TW Timing tool to set the timing on my 27. Nice tool and does a good job. I noticed while I had my plugs out that they were quite sooty. I always keep my adjusting knob set to the "sweet spot" just between running a little rough from too rich and a little rough from too lean. What could cause this? I am using the original vaporizer on this car and it runs well.
I've noticed the same on my '24
Maybe it'll burn clean inside if you let it wind out for some miles from time to time on some lonesome straight road
Don't know Roger, The Mounties (RCMP) are pretty vigilant around here and I don't have a speedometer
Had the same issue, turned out the preheater was restricting the air flow thru the carb. Removed it, and plugs are staying much cleaner. May have some restriction in vaporizer.
Joe, what do you mean by the preheater? The tube from the mixing chamber to the float bowl?
It was a brass preheater going into a Kingston Y-1. Your vaporizer is a different set up, just saying to check and make sure you are getting enough air.
What plugs and gap are you running?
A hotter plug may help.
Changing gap may help.
I am running Champion A-25 set at .035
According to this table, A25s are the coldest of four 1/2 inch pipe plugs that Champion sold. The table doesn't show Champion Xs, so I don't know where they fall on heat range. Also, note that the table recommends a gap of 0.030 for A-25s.
Cleaned the plugs today and reset them to .030. I'll give it a run on the weekend and see if they soot up again. If so, I may try a hotter plug. Any suggestions?
My Champions @ .30 don't seem to soot up of I drive couple miles. 2-3 miles I have never seen any sooting at all. I heard start a old car and not drive2-3 miles. Just my opinion Tim