Post by centralvalleygter on Aug 22, 2012 15:21:53 GMT -5
This is really about my bus engine, but since it is the same type 1 ACVW engine most Bradleys have, I figured it was ok to put it in the main section.
My engine has been missing a bit at the low rpm range since we built it, which gets worse as it gets closer to the time to tune it up. We just recently tuned it up (replaced plugs, oil, cleaned air filter, adjusted valves, etc.) and found that when trying to use the induction timing light, it definitely was not firing consistently (strobe would not lock onto any degree reading on the pulley). The points were pretty bad, so we thought that might be the problem even though we cleaned and filed them, since we didn't have a replacement on hand.
HOWEVER, since my Bradley is sidelined while I restore some of the wear a bit, I pulled the Pertronix Electronic ignition system (distributor with module and coil) and put it on the bus, expecting it to fix the problem. Unfortunately, it is worse if anything. It will not run below about 1600 rpm (it dies if the gas pedal is not feathered, even after being warmed up), and I really do not think it is always firing on all the cylinders all the time above that rpm.
I have done the following:
1. Made sure the ground strap to the engine is well connected.
2. Disconnected the extra stuff to the ignition (tach wire, choke, shut down cut-off, etc.)
3. By-passed the wiring in the Bus, by running a hot (+) wire directly from the battery.
None of the above have had any impact on making the firing more consistent. Any ideas as to what my problem is would be appreciated?
Sincerely,
My engine has been missing a bit at the low rpm range since we built it, which gets worse as it gets closer to the time to tune it up. We just recently tuned it up (replaced plugs, oil, cleaned air filter, adjusted valves, etc.) and found that when trying to use the induction timing light, it definitely was not firing consistently (strobe would not lock onto any degree reading on the pulley). The points were pretty bad, so we thought that might be the problem even though we cleaned and filed them, since we didn't have a replacement on hand.
HOWEVER, since my Bradley is sidelined while I restore some of the wear a bit, I pulled the Pertronix Electronic ignition system (distributor with module and coil) and put it on the bus, expecting it to fix the problem. Unfortunately, it is worse if anything. It will not run below about 1600 rpm (it dies if the gas pedal is not feathered, even after being warmed up), and I really do not think it is always firing on all the cylinders all the time above that rpm.
I have done the following:
1. Made sure the ground strap to the engine is well connected.
2. Disconnected the extra stuff to the ignition (tach wire, choke, shut down cut-off, etc.)
3. By-passed the wiring in the Bus, by running a hot (+) wire directly from the battery.
None of the above have had any impact on making the firing more consistent. Any ideas as to what my problem is would be appreciated?
Sincerely,
