Holding engine on transom

[Combat]

I have a mariner 9.9 and was wondering if it is a good idea to bolt engine onto transom, so there is no way the engine can fall off, how many people do this ?

[Gazzago]

I wouldn’t have thought it would be such an issue with a 10hp motor.

I’ve always found the hand clamps worked well enough on an outboard and for extra safety I cable tie the handles together so they can’t work loose.

[Combat]

Originally Posted by Gazzago

I wouldn’t have thought it would be such an issue with a 10hp motor.

I’ve always found the hand clamps worked well enough on an outboard and for extra safety I cable tie the handles together so they can’t work loose.

Sounds a good idea to cable tie the clamps together
Thanks

[jeffstevens763@g]

personally i always do bolt but if and when i didnt i had a lanyard from the engine to the boat somewhere just incase

[Fenlander]

I have the same engine and have it bolted to the transom. I've been doing this for around the past 5yrs with my OBs after watching the amount of load from varying directions when in difficult sea conditions.

I set up daily and have drilled holes in the transom slightly oversize so the bolts slide through easily. I have the bolts plus two stubby spanners in a small bag within my setup kit so I never have to play hunt the spanner to fit them.

Just feel more reassured that should a loosening or other problem happen with the clamps... however unlikely... there is that secondary security.

[jeffstevens763@g]

Same old question really do you have a back up, on some of the old transom pads use to have a loop for you to tie a rope or fix a lanyard I'm sure it use to be said in engine/boat books at one time might still be

[Fenlander]

The Zodiac inner transom plate has a loop for outboard attachment. But as the outboard flies off the transom the plate is only held on by 5 screws about half inch into wood. I suspect you may see the transom plate follow the outboard overboard on the end of the lanyard!

[Combat]

Originally Posted by Fenlander

I have the same engine and have it bolted to the transom. I've been doing this for around the past 5yrs with my OBs after watching the amount of load from varying directions when in difficult sea conditions.

I set up daily and have drilled holes in the transom slightly oversize so the bolts slide through easily. I have the bolts plus two stubby spanners in a small bag within my setup kit so I never have to play hunt the spanner to fit them.

Just feel more reassured that should a loosening or other problem happen with the clamps... however unlikely... there is that secondary security.

The bolt holes do you get any water coming through

[jeffstevens763@g]

Originally Posted by Fenlander

The Zodiac inner transom plate has a loop for outboard attachment. But as the outboard flies off the transom the plate is only held on by 5 screws about half inch into wood. I suspect you may see the transom plate follow the outboard overboard on the end of the lanyard!

The screws could soon be upgraded if that's the case my Mercury has two holes with Ali ferrells through the transom a good place to secure or eye bolts fitted any rope/lanyard should be tight to prevent movement so not giving the engine chance to jump off

[Fenlander]

>>>do you get any water coming through

No none at all.

The bolts should have come with your OB.

[Combat]

Originally Posted by Fenlander

>>>do you get any water coming through

No none at all.

The bolts should have come with your OB.

Yes mine did come with ob, means drilling more holes

[Fenlander]

On a Honwave with the sandwich construction transom a really nice job would be to find some plastic or stainless tube with an id the bolt will easily slide through then drill to make that a snug fit in transom, cut to length and seal.

[Combat]

Originally Posted by Fenlander

On a Honwave with the sandwich construction transom a really nice job would be to find some plastic or stainless tube with an id the bolt will easily slide through then drill to make that a snug fit in transom, cut to length and seal.

Brilliant idea, thanks for your advice

[pagick]

Originally Posted by jeffstevens763@g

Same old question really do you have a back up, on some of the old transom pads use to have a loop for you to tie a rope or fix a lanyard I'm sure it use to be said in engine/boat books at one time might still be

Second this.
I do remember watching a buddy diving into winter ocean water in a harbor to get a hook on his outboard. It was knocked off when his sloppy tied job let the outboard get pryed off by the dock and harbor chop.