Hooked on Deanna
Petty Officer 2nd Class
- Joined
- Feb 22, 2009
- Messages
- 142
Backfires underload below 3400 RPMs, above 3400 and the engine runs strong. Here is what I have done: new wires, plugs, cap, rotor. Checked compression (185 - 195), removed valve covers and watched valves operate. All above checked good. I used a test light grounded to the engine to steal spark from each cylinder - all bogged the engine down except 6 & 7. what could this be?