1958 Ford Workmaster 601
Two months ago I had a new cylinder head and valve kit installed on my 58 Ford 641. The new head had a very slight leak on the front right portion of the new head gasket. The shop said there was an irregularity they noted in the top of the block and it shouldn’t be and issue. That sounded a bit like a “likely cover story” since they never told me about the issue when I picked up the tractor. None the less, the tractor ran fine when I picked it up. I have been building a fence and used the tractor for several days with a hole auger. After some time, I began noticing a miss and roughness when changing rpm. I also noticed the clear plastic fuel filter began filling with mostly vapor and occasionally would fizz like a opening a coke bottle on startup, usually after an overnight sit. Several times I had to remove the fuel filter from the line and re-fill the vapor with fuel. The vapor and small bubbles would always return from the direction of carb and intake manifold. Finally, I began trying to chase down the source of the miss, backfire and vapor bubbles. I replaced the condenser, re-gapped point, replaced/gapped plugs, timed (I think), and removed and inspected carb. When I tried to time the machine, I notice the 4 degree mark would not stabilize. It was moving all over the place making timing a guess work at best. Issue proceeded to worsted, likely from tinkering too much, until the tractor, now, cannot be started. I removed the one year old carb to find what looks like exhaust soot and some fine debris in bottom of bowl. With the soot in the carb, I suspected a stuck valve (maybe soot is from backfiring) and did a compression check. All four cylinders were roughly the same at about 105 psi. I appreciate anyone’s help. Sorry for the novel.