tarafied1
Well-Known Member
The Bobcat has been running rough lately. I got home from Atlanta and had some time to look at it with him before I fly out tomorrow to Europe. It had low and fluctuating manifold vacuum. Played with timing and carb and just couldn't get it to smooth out. So I did a compression test. #1 60 psi, #2 30 psi, #3 150 psi, # 4 140 psi.
Some time ago it sucked up crud in the carb and was running lean. Lean enough to melt an electrode on one of the plugs. I think it either burnt a couple valves or maybe even hurt some pistons. It's not blowing oil out of the breather or overheating so I hope it's just valves. I squirted oil in the hurt cylinders and checked again, Got the same numbers. Again I hope it's just valves. He is going to pull the head tomorrow. I called the machine shop and they said they could turn around the head in a couple days so we hopefully can get it fixed before the Hot Rod Power Tour.
Not having good luck with all of our junk Fords lately.
Some time ago it sucked up crud in the carb and was running lean. Lean enough to melt an electrode on one of the plugs. I think it either burnt a couple valves or maybe even hurt some pistons. It's not blowing oil out of the breather or overheating so I hope it's just valves. I squirted oil in the hurt cylinders and checked again, Got the same numbers. Again I hope it's just valves. He is going to pull the head tomorrow. I called the machine shop and they said they could turn around the head in a couple days so we hopefully can get it fixed before the Hot Rod Power Tour.
Not having good luck with all of our junk Fords lately.