akorcovelos
Petty Officer 1st Class
- Joined
- Jun 17, 2006
- Messages
- 242
Re: 1984 Mercruiser 260 head gasket job, lots of pics and questions!
Turns out I accidentally turned the shift rod a single tooth. I pulled the lower unit again and re-indexed the shift rod, put it back together and its much better now. It did die a couple times when shifting into reverse, so I'm guessing the lower shift cable is ready to be replaced. If I can I'm going to try and nurse it through this season and replace it when I do maintenance over the winter.
On a different note, I'm only getting 40mph at 3900rpm WOT. I checked initial timing and confirmed its still exactly 8*btdc, but under power at 3000rpm its only at 22* total timing. So its only adding 15* of timing at 3k? I should be getting 32-34* all in by 3k, right? Should I just give it a little more initial, like 10* and see what I get at 3k? The prop is a SS 15" X 19p if that matters.
Turns out I accidentally turned the shift rod a single tooth. I pulled the lower unit again and re-indexed the shift rod, put it back together and its much better now. It did die a couple times when shifting into reverse, so I'm guessing the lower shift cable is ready to be replaced. If I can I'm going to try and nurse it through this season and replace it when I do maintenance over the winter.
On a different note, I'm only getting 40mph at 3900rpm WOT. I checked initial timing and confirmed its still exactly 8*btdc, but under power at 3000rpm its only at 22* total timing. So its only adding 15* of timing at 3k? I should be getting 32-34* all in by 3k, right? Should I just give it a little more initial, like 10* and see what I get at 3k? The prop is a SS 15" X 19p if that matters.
