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Thread: SST 45 OPC engine spec

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    Default SST 45 OPC engine spec

    can anyone point me to the page on the apba site where this doc is?
    thanks

    I emailed them and no answer
    why is it so hard????
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    Quote Originally Posted by Powerabout View Post
    can anyone point me to the page on the apba site where this doc is?
    thanks

    I emailed them and no answer
    why is it so hard????
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    On the APBA.org web site... go to Resources.... then click on the 2019 Stock Outboard Technical Manual... then starting on page 35 are the 45 SS motor specs.

    The APBA web site is somewhat ‘precarious’.
    Dean Hobart

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    Quote Originally Posted by DeanFHobart View Post
    On the APBA.org web site... go to Resources.... then click on the 2019 Stock Outboard Technical Manual... then starting on page 35 are the 45 SS motor specs.

    The APBA web site is somewhat ‘precarious’.
    Hi Dean
    Been there, its in the index but it has been removed from that document the page says;

    Stock Outboard Technical Manual
    35
    45SS CLASS
    OMC 45SS ENGINE SPECIFICATIONS (45SS CLASS)
    FOR OMC 45SS ENGINE SPECIFICATIONS SEE THE
    MOST CURRENT OPC CATEGORY INSPECTION MANUAL.
    THIS CLASS WILL BE REMOVED FROM STOCK OUTBOARD ON NOVEMBER 2019
    -----
    So whats the date in the apba office?
    *

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by Powerabout View Post
    Hi Dean
    Been there, its in the index but it has been removed from that document the page says;

    45SS CLASS
    OMC 45SS ENGINE SPECIFICATIONS (45SS CLASS)
    FOR OMC 45SS ENGINE SPECIFICATIONS SEE THE
    MOST CURRENT OPC CATEGORY INSPECTION MANUAL.
    THIS CLASS WILL BE REMOVED FROM STOCK OUTBOARD ON NOVEMBER 2019
    -----
    So whats the date in the apba office?
    *
    I have a set of the specs. I can scan & email if you want.

    They are as originally published by OMC. They do not have any of the updates re parts changes since Seaway became the parts supplier.

    John

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    Administrator Ron Hill's Avatar
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    Default 1988 Parts Catalog for 45 SS

    Anyone need or want this, I will send it to you!
    Attached Images Attached Images  

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by Powerabout View Post
    Hi Dean
    Been there, its in the index but it has been removed from that document the page says;

    Stock Outboard Technical Manual
    35
    45SS CLASS
    OMC 45SS ENGINE SPECIFICATIONS (45SS CLASS)
    FOR OMC 45SS ENGINE SPECIFICATIONS SEE THE
    MOST CURRENT OPC CATEGORY INSPECTION MANUAL.
    THIS CLASS WILL BE REMOVED FROM STOCK OUTBOARD ON NOVEMBER 2019
    -----
    So whats the date in the apba office?
    *
    Here they are
    Attached Images Attached Images

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    Quote Originally Posted by John Schubert T*A*R*T View Post
    Here they are
    thanks John, that has some more updates from my 2015 version

    whats new is the pistons, the docs says;
    Pistons/Rings:
    There is only one model of SST45 piston available in standard bore and 0.030 oversize. This
    OEM cast piston uses a top Keystone ring and a rectangular lower ring. There is a newer part
    with different rings which is NOT legal. After market pistons are not legal. See information at
    the end of this document to aid in OEM piston identification.


    so which OEM part number is not legal guessing the 5006665?
    so the 391417 and the 396581 are legal?

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by Powerabout View Post
    thanks John, that has some more updates from my 2015 version

    whats new is the pistons, the docs says;
    Pistons/Rings:
    There is only one model of SST45 piston available in standard bore and 0.030 oversize. This
    OEM cast piston uses a top Keystone ring and a rectangular lower ring. There is a newer part
    with different rings which is NOT legal. After market pistons are not legal. See information at
    the end of this document to aid in OEM piston identification.


    so which OEM part number is not legal guessing the 5006665?
    so the 391417 and the 396581 are legal?
    I believe that's correct. I do know for a fact that the Weisco pistons are not legal. I also believe that Seaway does have the legal pistons but so should any BRP dealer have access to them.

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    Quote Originally Posted by John Schubert T*A*R*T View Post
    I believe that's correct. I do know for a fact that the Weisco pistons are not legal. I also believe that Seaway does have the legal pistons but so should any BRP dealer have access to them.
    Hi John
    reading the detail I cant see a specification for the any port radius, got height, width and exhaust chamfer but not the corners?
    Even the exhaust is eyebrow style so has a large radius top and bottom.
    How do the inspectors make their tools?
    Cheers

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by Powerabout View Post
    Hi John
    reading the detail I cant see a specification for the any port radius, got height, width and exhaust chamfer but not the corners?
    Even the exhaust is eyebrow style so has a large radius top and bottom.
    How do the inspectors make their tools?
    Cheers
    All the years from my original concept of the 45 in my workshop through the years building 45 engines that won championships & one world, we never seemed to have an issue with the corners nor is there a spec that they could measure. Height, opening, chamfer etc. as you stated were measured to a spec. Mostly verniers were used, some made straight line measuring tools. To me there were too many + or - variables. We won one of the earlier nationals and were challenged because of the scallop hand ground material where the transfer was only to have the inspector compare it with other permanent mold blocks & allow it to pass. Thus the statement in the inspection manual. If you want more clarification on how they actually perform the measurements may I suggest you contact APBA's chief inspector, Ken Scoville, ken@boatwrx.com.
    Thanks Powerabout thanked for this post

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