Engine Motor Mount Rating - Mountain Buzz
 



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Old 11-15-2015   #1
 
NOCO, Colorado
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Engine Motor Mount Rating

Fodder for the Buzzards:
What constitutes an acceptable motor mount rating for a raft or cataraft.
The N brand retailer refuses to answer my querie and removes my questions from the Q&A forum on their site. Note: A HP is 33000 ft lbs work/min.
Minions: step in here:

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Old 11-15-2015   #2
 
Pleasant Valley, Colorado
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Quote:
Originally Posted by garyherballeaf View Post
Fodder for the Buzzards:
What constitutes an acceptable motor mount rating for a raft or cataraft.
The N brand retailer refuses to answer my querie and removes my questions from the Q&A forum on their site. Note: A HP is 33000 ft lbs work/min.
Minions: step in here:
huh?
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Old 11-15-2015   #3
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I don't know the answer, but it is on here somewhere. Check these threads.

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Old 11-16-2015   #4
 
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Hi,

Most of the "jackass" type mounts are rated in pounds -- that is, the straight weight of the motor. I don't know that I've seen any mounts (that type or otherwise) that are rated for torque or other characteristics.

If you had a specific motor and mount type that you were considering and would share here, there may be folks here who have used it, and could chime in.

FWIW.

Rich Phillips
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Old 11-16-2015   #5
 
Great Falls, Montana
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I think 175hp is the max. After you mount it please take a picture and show us.
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Old 11-16-2015   #6
 
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Denver, Colorado
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Quote:
Originally Posted by ob1coby View Post
I think 175hp is the max. After you mount it please take a picture and show us.
What that depends on wether or not you're running dual outboards. If it's a twin motor rig, I'd say 300 hp and no less. It'll be perfect for when the water gets skinny.
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Old 11-16-2015   #7
 
East of the Pine beatle, Colorado
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When any mount is relying on adhesive D-rings for retention, it would be impossible to provide any reliable measure of capacity. Any rating you might find is essentially useless. This falls squarely under the "don't be a moron" ratings system. Follow that.

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Old 11-16-2015   #8
 
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Some are rated for horsepower. It depends on the manufacturer. Garelick 4 Stroke Outboard Motor Bracket | Wholesale Marine

The one I have on my power boat is rated for both HP and/or weight. (15HP or 80lbs.)

Never seen one that's rated for torque.

Anything over 30HP......you need to get a jack plate.
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Old 11-16-2015   #9
 
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Amending

Quote:
Originally Posted by richp View Post
Hi,

Most of the "jackass" type mounts are rated in pounds -- that is, the straight weight of the motor. I don't know that I've seen any mounts (that type or otherwise) that are rated for torque or other characteristics.

If you had a specific motor and mount type that you were considering and would share here, there may be folks here who have used it, and could chime in.

FWIW.

Rich Phillips
Actually, the jackasses can also be categorized by horsepower limits. I find that sort of unuseful, since a 25 hp four stroke weighs a lot more than a 25 hp two stroke. And the torque characteristics of the two are quite different.

Hard data.

I have run a 25 two stroke hp motor clamped directly to a stock NRS cat yoke on a 16' boat. I have run the Grand repeatedly with an 18 hp four stroke - much heavier - on a jackass on a modified NRS cat yoke on a 20' Jacks El Tigre Grande.

FWIW.

Rich Phillips
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Old 11-16-2015   #10
 
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C. Springs, Colorado
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Quote:
Originally Posted by richp View Post
Actually, the jackasses can also be categorized by horsepower limits. I find that sort of unuseful, since a 25 hp four stroke weighs a lot more than a 25 hp two stroke. And the torque characteristics of the two are quite different.

Hard data.

I have run a 25 two stroke hp motor clamped directly to a stock NRS cat yoke on a 16' boat. I have run the Grand repeatedly with an 18 hp four stroke - much heavier - on a jackass on a modified NRS cat yoke on a 20' Jacks El Tigre Grande.

FWIW.

Rich Phillips
Hey Rich. I just looked at my mount and it says 2 stroke only on it.....go figure.
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