really?
I got yelled at on the allpar . com board for calling the Fiat 500 a clown car. LOL.
There are more inboard experts here anyway. THT slavishly will buy any over-priced alu outboard as if they are the only means of marine propulsion. One look at the parts prices tells you the OB manufacturers got the world's best racket goin' on...
This thread topic is: [h=1]What is initial timing on 4.3GL & can I advance it to improve performance?[/h]
And the question is..WHAT is a "GL"? Injected? TBI? CSFI?
the answer is NO simply put.
Well I think with all the uncertainty I am just going to leave it alone...I might check it to see where it is set at the very least but its too cold for that right now...wish I had indoor storage! I just would like to know for sure if 87 octane is acceptable...I am guessing the carb motor has no knock sensor.
Agreed and it is a good idea to pull your plugs out after a run, once a year to check the color of the center insulator. The window inside your engine. If they are nice and light brown or grey you are good. Blistered white is no good.
And while we are talking about timing and fuel octane the other factor in your inboard engine longevity, is correct prop pitch. You want that engine to be able to reach its specified RPM at WOT, if your rpms are too low, that engine will labor to pull the boat up on plane every time with the resultant overheating of exhaust valves and eventual low compression. When I got my boat it had a 14.5x19 on it and only got 4200 rpm. I went first to a 15x17 that got me to about 4600 and am going to try a 15.5x15 next to see how close to 5,000 that gets me.
Well by the way it gets on plane and the way it screams (sound not MPH) at WOT, I'd say it is giving all it has...BUT, I've only seen 43mph (full gas, people in boat other than me, gear, etc.) and I figured this 4.3GL should be capable to run 45-50MPH??? The lack of MPH is one clue that makes we wonder about the prop. I need to GPS the speed next season to know for sure.