16' 1966 Fiberform i/o, questions! (w/pics)

2 years ago I picked up this wonderful boat with the goal of a nice retro lake boat, with the occasional tube/ski/board behind it.

I still have a ways to go before it's in top running condition again and as a beginning boater I have lots of questions..

The boat dies when at full throttle out of the hole, I'm thinking this is a problem with the accelerator pump/plunger? If I ease into the throttle it's ok, but if I give it full throttle it dies. Can anyone confirm I'm on the right path here?

I have a Rochester Carburetor 2GC, ID# 7020993.

If that's the case I'll probably need a rebuild kit for the carb?

Secondly, I need a new prop. I think the previous owner used the prop to make gravel...

I can't find the specs on my prop in any list online and I haven't had much luck measuring the pitch, I think the diameter is 16".

I would like to replace the current 3 blade prop, with a 4 blade. With the current prop I think my WOT is about 4000 rpm.

If anyone knows the OEM prop spec for this boat that would be awesome! I would like to go one step down for more hole shot acceleration.

Note: forgot to mention it has a 110hp (Iron Duke??) Mercruizer engine.

A few pics:

Re: 16' 1966 Fiberform i/o, questions! (w/pics)

Welcome to iboats!!

You will find some ppl that will be glad to help, I cannot. A moderator will be along to redirect your post, this area is for Mercury/Mariner outboards. While you are looking around, you may find the answer to your prop question in the Prop section.

The answer to your engine question will be in the Mercruiser/Volvo Inboard/Outboard section.

Just a tip: you need to get Model/Serial numbers for the boat, the motor, and the outdrive before you will be able to get much help on here. Then it will be useful for you to post your questions in each of the separate locations for those topics so you will get help.

Best of Luck, and again, Welcome to iboats!!

Re: 16' 1966 Fiberform i/o, questions! (w/pics)

Thanks for the feedback, I saw Mercury / Mariner and thought I was in the right area. I'll await for a mod to move the post, and I'll research on getting those other details....

Re: 16' 1966 Fiberform i/o, questions! (w/pics)

yes this sure looks like a iron duke in-line 4. it sounds like it is running to lean or rich i had a similar problem and i leaned it out and it runs like a champ now. this is a nice looking boat.

Re: 16' 1966 Fiberform i/o, questions! (w/pics)

great old girl i have a 73 it shows as a voyager but they only come up as out board boats i got a 73 mercuiser 120 inboard in mine witch maybe an ironduke im not sure anyone have any ideas????