'56 F100 intervention
#18
The whole truck is fabbed from other parts.....1 ton chassis, Jeep Pu cab, hand made hood, sleeper was cut apart and sized down, etc. A ton of work went in to building it.
I also want to thank everyone for your support and offers to help! It is much appreciated. I will keep you updated.
I also want to thank everyone for your support and offers to help! It is much appreciated. I will keep you updated.
#20
#23
Little update.........I did a compression test on the Y block today. Most cylinders were 130ish, not too bad. But #7 had none, so I pulled the valve cover to check for stuck open valves. Both are working....not sure if they are sealing. Broken/stuck rings?
Also #1 is blowing back into the intake? Not looking good.....
Also #1 is blowing back into the intake? Not looking good.....
#24
Y-blocks are tough engines, takes a lot to hurt one.
Compression test done with carb held at WOT, all plugs out, 2oz oil in each cylinder and then crank for a while, then check compression? If not, don't worry about low #7 or #1, if it has not run in a while, valves might be not seating and rings not seating.
After you put oil in cylinders and crank it for a while, put shop-air into spark plug holes on #1 and #7 to confirm where that air pressure is going; out carb, out exhaust, or into crankcase.
Even with one really low cylinder, I would start it to see what it runs like. Put Marvel Mystery oil, about 2 oz, into carb ( no gas) and then crank it to start. That oil will burn and also lube valves. If it fires then dies, do it again, then hook up gas line.
Run for a few minutes. Shut off, pull plug on #7 and check compression.
Good luck!
Compression test done with carb held at WOT, all plugs out, 2oz oil in each cylinder and then crank for a while, then check compression? If not, don't worry about low #7 or #1, if it has not run in a while, valves might be not seating and rings not seating.
After you put oil in cylinders and crank it for a while, put shop-air into spark plug holes on #1 and #7 to confirm where that air pressure is going; out carb, out exhaust, or into crankcase.
Even with one really low cylinder, I would start it to see what it runs like. Put Marvel Mystery oil, about 2 oz, into carb ( no gas) and then crank it to start. That oil will burn and also lube valves. If it fires then dies, do it again, then hook up gas line.
Run for a few minutes. Shut off, pull plug on #7 and check compression.
Good luck!
#25
After some more checking.......The #7 exhaust valve was tightened down so much it wasn't closing, and the #1 was too loose. Whoever was adjusting the valves was clueless.
Got them all pretty close, will try to fire this thing over the weekend!
I'm a little concerned about the cams condition....some of the adjusters are at their limit....
Got them all pretty close, will try to fire this thing over the weekend!
I'm a little concerned about the cams condition....some of the adjusters are at their limit....
#28