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Installation guide

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pietro

Contributing Member
Hi all, I am thinking of purchasing a classic italian wooden boat, a 25" daycruiser that was once equipped with a pair of 130hp gas mercruisers. Since the boat now comes without the engines, I would like to buy from the web a pair of 170hp Volvo Penta engines. I must say I restore wooden small boats for passion, this would be the fourth boat I work on, but I never put my hands on engines, I have just ordinary mainteinance competence and tools. What about thinking of do it by myself? Is there any documentation I could gather to be guided, in addiction to this usefull forum?
thanks to you folks
 
Pietro, are you asking about the older Volvo Penta In-Line 6 cylinder push-rod engines? Or are you asking about a 4.3L in a 170-ish horse power version?

And then when you mention Volvo Penta as in stern drive, are you asking about the AQ series drives, or the later Gimbal System stern drives?


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I was not able to understand until you offered more info. Now I do.

OK..... this is an AQ171 ................ not an AQ170 6 cylinder push rod engine that I assumed that you meant.

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The 171 OHC 4 cylinder engine should be a good engine.

Also, this would be an AQ series out drive, of which I believe would be an excellent choice, over that of the later Gimbal System V/P drives.

These are actually 290 drives, and one drive is missing the anchorage bracket.

07f8c90c0b00a262bbbcf7c3c7b8d49d_med.jpg



For these drives, you'll need the 290 transom shields.
The transom cut-out becomes larger for this shield. Often this new cut gets into fresh material.





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Rick I am going to check out the two engines and everything concerning by person next week. Have any advice for me for that occasion? Assuming that I am going to rebuild the new boat transom to cut it and place the new sterndrives, do you think it is an easy job?
 
pietro said:
Rick I am going to check out the two engines and everything concerning by person next week. Have any advice for me for that occasion? Assuming that I am going to rebuild the new boat transom to cut it and place the new sterndrives, do you think it is an easy job?
Click to expand...
Yes, the actual cutting for the transom shields is nothing more than skilled carpentry work.
The actual transom core work requires good skills, however.
Make sure that you run your core pieces completely through the area where the drives will mount.
The cut-out will be down afterwards.

Also, as the first core layer is being laid up, be sure to secure several straight backers/stiffners across the entire transom area prior to the layup curing.
Once this layer cures, the next layer will follow the NOW straight and flat surface.

I've seen people do this and NOT use a backer/stiffner, and end up with a slight concave or convex in the transom area.

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