RPM question 1972 Trojan

farfrompuken · Post by **farfrompuken** » Wed Aug 23, 2006 5:54 pm

i have a 1972 f31 (pics posted on this sight). sound to me when you rebuilt the motors you should re check you props . sounds like the pitch is to high and this is why your revs are not coming up/

rossjo · Post by **rossjo** » Thu Aug 24, 2006 12:18 pm

possible - but he said it used to run fine with these props.

WHat propse are you running BMAC?

BMac · Post by **BMac** » Wed Aug 30, 2006 5:09 pm

When they pull it out for the winter I am going to have to check them out, get more information and then I 'll be back. The marina is replacing the plugs, wires and distributors this week. We'll see what that does.
I just purchased her in October of last year. I called the previous owner but all he could tell me is the Marina installed them so he assumes they are the right ones. They have been on the boat for about 7 years. He never took it past 17 - 2000 RPMs as all the travelling he done was more or less putting around the Kawartha Lakes up here in Ontario. So I guess it will be trial and error to see what the fix is.

Bill

rossjo · Post by **rossjo** » Thu Aug 31, 2006 10:57 am

What props do you have? 15x16 cupped 3-blades perhaps?

Ernesto is dumping a bit of rain on us as I type - no real wind. I went out and surfed this am @ 6:45 - but it was too choppy to enjoy, so I went to the office.

BMac · Post by **BMac** » Tue Sep 26, 2006 4:47 pm

Wires and plugs replaced, top end was 3700 RPM's and 33 mph on the GPS. Flat lake and no wind to speak of.

In a few weeks the boat will be out of the water and I will check the props and post another update. Thanks for the help and suggestions.
Bill

Buckknekkid · Post by **Buckknekkid** » Tue Sep 26, 2006 5:49 pm

when you find out what you have let me know

Trojan Boat Forum

RPM question 1972 Trojan

to much prop

Puke ...

what props