brodie123
Petty Officer 1st Class
- Joined
- May 4, 2008
- Messages
- 279
Hi All;
2007 Mercruiser 4.3L V6 - Alpha 1 drive
- Rebuilt carb
- new plugs, dist cap and rotor
- new fuel filter
- drain and replaced gas with new
- compression is good
No power under load. Starts fine but rumbles. It appears that 2 cylinders are not firing. 1 of which comes in and out for about 2 minutes, then out for 2 minutes. When the 5th is running I am missing around 500+rpm, and when both are out I am missing around 1000+ rpm.
I assume there is an ignition controller - I have to DL the manual still but thought I would get some advice first.
Thanks in advance.
2007 Mercruiser 4.3L V6 - Alpha 1 drive
- Rebuilt carb
- new plugs, dist cap and rotor
- new fuel filter
- drain and replaced gas with new
- compression is good
No power under load. Starts fine but rumbles. It appears that 2 cylinders are not firing. 1 of which comes in and out for about 2 minutes, then out for 2 minutes. When the 5th is running I am missing around 500+rpm, and when both are out I am missing around 1000+ rpm.
I assume there is an ignition controller - I have to DL the manual still but thought I would get some advice first.
Thanks in advance.