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| Short shaft motor on high back end of... |
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Paul Dasilva
New member
Username: pauly_porkchop
Post Number: 1
Registered: 07-2009
| | Posted on Monday, July 13, 2009 - 04:11 pm: | 
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I got a different boat and my motor sits to high now can i cut the back end down so the propeler sits lower because i think its cavelcating, please help. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5646
Registered: 05-2007
| | Posted on Tuesday, July 14, 2009 - 12:57 pm: |
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Paul, anytime you alter the transom of a boat it affects the max capacity, the max horsepower rating and could cause safety issues since the boat was designed to have a 20" transom.
So you don't just want to get out there with a saw and start cutting away.
In a case such as yours I would only go with one of two options - convert your motor to a long shaft with a kit if available or used parts if you can find them. Either way it could be expensive (an aftermarket extension kit can run from about 700-1000 bucks).
Alternately, you can go with a mount or jackplate and just mount the motor a little further back and a little lower than the transom would normally allow.
That may look a little odd, require some creative rigging and you do run the chance of drowning the motor if you get hit from the back by a wave, but many commercial builders have gone to mounting the motor on a platform out back (looks like they are mounted on the end of a swim platform) and it appears to be working half decently for them.
But in any event, I really wouldn't look at cutting the transom unless you are prepared first do some research on the effect it will have and then possibly have to do alot of work (depending on the construction material of the boat) and then having to have the coast guard recalculate the capacity/max horsepower of your rig to ensure it's safe and can be insured. |
Paul Dasilva
Member
Username: pauly_porkchop
Post Number: 5
Registered: 07-2009
| | Posted on Tuesday, July 14, 2009 - 01:06 pm: |
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i have been looking everywhere for an extention kit i cant find one maybe i will have to look for another boat with a shorter transom, thank you very much. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6272
Registered: 09-2003
| | Posted on Wednesday, July 15, 2009 - 07:36 am: |
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Best to avoid extension kits--bad news on the driveshaft--and find a long shaft motor. Plenty of them out there. You can either find a junker with a bad powerhead and swap it out, or just get another motor and sell yours.
Jeff |
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