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Old 01-22-2019, 07:51 AM   #1
Thunder T
Junior Member
 
Join Date: Jan 2019
Location: Fairfield, Texas
Posts: 1
Default Flathead question

We have just resurrected our 1936 Ford Firetruck.
I recently drove it about 20 miles at about 45 mph, to the local state park for a Christmas Celebration. When we returned to the museum I noticed a miss.

I shorted each cylinder to see which was not firing. It was #1.
I removed the plug and it looked oil fouled.
I removed all plugs and did a compression check. All cylinders on left side ran about 75-80 lbs.
The cylinders on the right side varied from 50-110. The highest compression was found on #1, the cylinder that was not firing.
All plugs wires were firing, but found that #1 was not firing through the plug.
I sprayed carb cleaner into the plug to clean the oil out and it started firing through the plug.
I replaced the plugs and all cylinders were firing.
My question is; what would cause the #1 cylinder, the one that was NOT firing, to have so much higher compression? In my little finite mind, that seems backward.
What do you think?
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