Volvo transom plate adaptor Ping spannerman

[Monterey10]

I have Bayliner 2160 that had a Volvo AQ drive in it. The Volvo is shot. I scrounged up a Volvo Transom adaptor plate so I can put on a Mercruiser outdrive. It appears that the transom adaptor plate is a little larger than the cut out. Any tricks to putting in the adaptor plate. Thanks in Advance. Craig Santa Cruz CA

 

[spannerman]

Try and scrounge a copy of the paper pattern that comes with adapter plate (local dealer?), as it uses two of the existing holes from the old transom assembly to locate the new adapter plate, this is essential so that you get the height of the 'X' point (crankshaft centerline)in the right place. With the paper pattern taped to to transom you can then see which areas need cutting out and a couple of new holes need to be drilled also. You'll need a heavy duty jigsaw to cut out the transom hole, you can rent them.
Use good quality sealer ( Sikaflex) around all the bolts and on the rubber of the adapter plate as a back up, its a lot of work to take it out again if it leaks!
And if the Merc drive is used its worth replacing the rubber seal on that too as it will be compressed. its only a few bucks, stick it on with contact adhesive and weight it down while it dries.

 

[Monterey10]

Thank You. I don't have a pattern, so, I will try to make one. I found an X penciled in centerline, so, I will focus on centering the plate on that mark. I didn't know that some of the holes would align up. Thanks again. Craig

 

[Callisto]

If you call Volvo UK they will probably send you what you need. I spoke to a guy in their tech department when doing my conversion and he was great.

Don't rely on anything marked on the transom as right. It may be out or even something unrelated. there are different X dimensions for different boats and transom angles. tread carefully or you could end up with a sheild in the wromng place and an engine with a sump hitting the bottom of the boat before its aligned.

JH

 

[spannerman]

The 'X' point is at a specific height above the bottom of the transom on the centre line of the boat, which now is somewhere in the middle of a large hole cut out in the transom, the 'x' you refer to is only the center line. The true 'X' has already been calculated by the previous installation, thats why its important to use the pattern as this will transfer the 'X' point over to new installation for you. ( If I remember the next to bottom pair of bolts should be at the same height as the previous 'next to bottom pair')
Its only needs calculating if you are installing a motor for the first time on a new hull, or if you are putting a seriously powerful motor in for high speed use.