Marinette Boat Forum

Inline, conventional, straight drive are all names for drives where the transmission bolts to the back of the engine and has a prop shaft running through the bottom of the boat, through a strut, with a prop on the end. Velvet drive, paragon, hurth, twin disc are all brands of transmissions. Some als...

Guess which one is a royal pain in the *ss to work on! Jeff They are all a pain to work on! :lol: To go back to the original post. The reduction gear is determined by 3 things: prop diameter, engine rated rpm and intended hull speed. Prop diameter is the biggest factor. Depending on the number of b...

The biggest quirks I notice are how the boats handle compared to a similar glass, wood or steel boat, and how much wind affects them. These boats are very light for there size and sit shallow in the water. Stand back a good distance sometime when a Marinette is on stands and look at the ratio of mat...

Velvet drive is a division of borg warner. They make both conventional inline transmissions and v drives.

Both inline and v drives can be 1:1 ratio or any number of reduction ratios. Some v drives actually have an overdrive ratio.

Sometimes the v drive gearbox is bolted directly to the transmission. Sometimes it is connected to the transmission (or engine in race applications) by a driveshaft.

At least 50% of my customers are afraid to run their boats over 2000rpm. New, old, doesn't matter. Sometimes I can convince them that they were designed to run faster, sometimes not. I am amazed at the myths floating within the boating community. 1200-2500 rpm is the no no range in my book for a gas...

If it is not being used, pull it out. But before you pull the last wire, use it to pull a piece of heavy string or light parachord to use as a fish line in the future. Leave at least a foot at each end.

I work along side surveyors checking engines and drives. A compression check is a good idea, but not always necessary. If you were denied the compression test because you were going to do it, then I am not surprised. Not that you couldn't do it. If you were denied having a marine technician do the c...

I think they used 1/8" x 3/4" aluminum stock. They used aluminum on mine because it supported the canvas at the aft corners where there was no stanchion. It is all long gone now, and I like it better. Never had a problem getting wet though.

My 32 has just enough room to sneak the prop off, if you tip it just right. That is original as far as I know. The 32 that I just re powered with 1.250 shafts was about the same. It had a little more room but only because the shafts were set up for castle nuts where mine are jam nuts. The castle nut...