Hi,
Helping a neighbor friend with his newly acquired early '65 Mustang. The engine is a '68 vintage 200 with a non-SCV carb, which we rebuilt with parts from Mike's Carb. The car came to him with the Load-O-Matic distributor so we replaced that with a Cardone single vacuum distributor, p/n 842613. It now starts, idles and runs fine with one exception -- there is what I would call a persistent stumbling/miss (possible lean surge?) when holding a steady 60 MPH on a level road. Giving it more throttle temporarily smooths it out as the vacuum sensitive power enrichment piston/system is now working properly.
I failed to measure the diameter of the main jet in this 1100 carb during the rebuild process, but I do recall looking on the jet for a stamped "xxF" number and did not see one under a magnifying glass, so I have no idea what the jet's diameter is that's in the carb now. Can anyone help me with what the 1100 main jet diameter should be for this '68 era 200 engine? The car has had no performance enhancements. It is a 3-spd manual trans.
I also noticed something unusual (to me anyway) with the new (not-rebuilt) Cardone distributor's vacuum advance system. I admit my knowledge of all things Ford is extremely limited. On a typical small block Chevy point style distributor, when vacuum is applied "on the bench", the plate the points are attached to rotates concentric around the centerline of the distributor shaft which results in the point gap/dwell angle not varying under different vacuum scenarios. But, on this Ford Cardone distributor (their p/n 842613), when vacuum is applied "on the bench", the points plate does not rotate concentric with the mainshaft -- it pivots from a fixed point. This cause a significant decrease in point gap (and increase in dwell angle) as the vacuum level increases. Is this how an OEM 200 6 cyl Ford distributor's vacuum advance system works, or did Cardone re-engineer their new Ford 170/200 engine distributors to this "off-center" system of advancing the points plate under vacuum that causes a huge change in point gap/dwell? Just doesn't seem right to me...
Helping a neighbor friend with his newly acquired early '65 Mustang. The engine is a '68 vintage 200 with a non-SCV carb, which we rebuilt with parts from Mike's Carb. The car came to him with the Load-O-Matic distributor so we replaced that with a Cardone single vacuum distributor, p/n 842613. It now starts, idles and runs fine with one exception -- there is what I would call a persistent stumbling/miss (possible lean surge?) when holding a steady 60 MPH on a level road. Giving it more throttle temporarily smooths it out as the vacuum sensitive power enrichment piston/system is now working properly.
I failed to measure the diameter of the main jet in this 1100 carb during the rebuild process, but I do recall looking on the jet for a stamped "xxF" number and did not see one under a magnifying glass, so I have no idea what the jet's diameter is that's in the carb now. Can anyone help me with what the 1100 main jet diameter should be for this '68 era 200 engine? The car has had no performance enhancements. It is a 3-spd manual trans.
I also noticed something unusual (to me anyway) with the new (not-rebuilt) Cardone distributor's vacuum advance system. I admit my knowledge of all things Ford is extremely limited. On a typical small block Chevy point style distributor, when vacuum is applied "on the bench", the plate the points are attached to rotates concentric around the centerline of the distributor shaft which results in the point gap/dwell angle not varying under different vacuum scenarios. But, on this Ford Cardone distributor (their p/n 842613), when vacuum is applied "on the bench", the points plate does not rotate concentric with the mainshaft -- it pivots from a fixed point. This cause a significant decrease in point gap (and increase in dwell angle) as the vacuum level increases. Is this how an OEM 200 6 cyl Ford distributor's vacuum advance system works, or did Cardone re-engineer their new Ford 170/200 engine distributors to this "off-center" system of advancing the points plate under vacuum that causes a huge change in point gap/dwell? Just doesn't seem right to me...