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transom thickness

Old 05-01-2005 | 01:41 PM
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From: LOTO 31 mm
Default transom thickness

Does anyone know how thick a transom is suppose to be?
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Old 05-01-2005 | 01:55 PM
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Default Re: transom thickness

2-1/4 inch I believe
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Old 05-01-2005 | 02:15 PM
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Arrow Re: transom thickness

That's 36 inches on an Apache'
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Old 05-01-2005 | 02:20 PM
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Default Re: transom thickness

they will vary due to the boat and what will be hangin on them...
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Old 05-01-2005 | 02:38 PM
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From: LOTO 31 mm
Default Re: transom thickness

Originally Posted by hillbilly24
2-1/4 inch I believe
Thay sounds about right. Thanks
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Old 05-01-2005 | 03:52 PM
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Default 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.
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Old 05-01-2005 | 05:27 PM
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Default 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.
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Old 05-01-2005 | 05:44 PM
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Talking 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
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Old 05-01-2005 | 05:56 PM
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Default 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
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Old 05-02-2005 | 08:59 AM
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From: LOTO 31 mm
Default 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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