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-   -   transom thickness (https://www.offshoreonly.com/forums/general-q/102124-transom-thickness.html)

KCHOTBOAT 05-01-2005 01:41 PM
transom thickness
 
Does anyone know how thick a transom is suppose to be?

hillbilly24 05-01-2005 01:55 PM
Re: transom thickness
 
2-1/4 inch I believe

Hydrocruiser 05-01-2005 02:15 PM
Re: transom thickness
 
That's 36 inches on an Apache' :D

Sean H 05-01-2005 02:20 PM
Re: transom thickness
 
they will vary due to the boat and what will be hangin on them...

KCHOTBOAT 05-01-2005 02:38 PM
Re: transom thickness
 
Originally Posted by hillbilly24
2-1/4 inch I believe
Thay sounds about right. Thanks

tcelano 05-01-2005 03:52 PM
Re: transom thickness
 
My SSMIII service manual requires transom thickness to be a minimum of 2" and a maximum of 2 1/4".

The surfaces must be parallel within 1/8" measured top to bottom of the cutout hole.

The inside surface must be flat to within 1/8"

The outside surface must be flat to within 1/16"

Transom angle 13 to 16 degrees.

I assume other drives will have similar design requirements.

David 05-01-2005 05:27 PM
Re: transom thickness
 
Originally Posted by tcelano
My SSMIII service manual requires transom thickness to be a minimum of 2" and a maximum of 2 1/4".

The surfaces must be parallel within 1/8" measured top to bottom of the cutout hole.

The inside surface must be flat to within 1/8"

The outside surface must be flat to within 1/16"

Transom angle 13 to 16 degrees.

I assume other drives will have similar design requirements.
That is what Mercruiser says in the service manuals for Alpha, Bravo, TRS, and #6 drives, as well.

Pwrbt33 05-01-2005 05:44 PM
Re: transom thickness
 
2 1/4 is best for a Bravo Alpha set up. Sixes call for 2 1/4 to 2 1/2 I believe. You can be as thin as 2 for an Alpha / Bravo.

John

t500hps 05-01-2005 05:56 PM
Re: transom thickness
 
Mine is a little over 2 inches thick, Unfortunately I was able to walk out back and measure it 5 minutes ago :mad:

KCHOTBOAT 05-02-2005 08:59 AM
Re: transom thickness
 
Thanks for the info. Mine was only an 1 7/8" and the top to bottom surface was not to parallel.
Originally Posted by tcelano
My SSMIII service manual requires transom thickness to be a minimum of 2" and a maximum of 2 1/4".

The surfaces must be parallel within 1/8" measured top to bottom of the cutout hole.

The inside surface must be flat to within 1/8"

The outside surface must be flat to within 1/16"

Transom angle 13 to 16 degrees.

I assume other drives will have similar design requirements.


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