Trying to identify Penta-Volvo in Older FiberForm boat

[RJ in Utah]

Okay, this has likely been asked several thousand times in the past but I'm coming up pretty empty on my internet searches. I suspect because there's a confusion between my boat registration and the HIN.

I've done a lot of digging and thought I knew what I was looking at, an AQ 255B with a 350 Chevy circa 1978 in a 20 foot Fiberform openbow. My local DMV though states this is a 1987 18 foot model 1880. Now for the most part, I don't care if it's a 78 or 87 as this is a project boat for mt son and I. What i'm stuck on is there are a number of things not functioning (like the power trim) which I know will need parts and it'd be great to find a wiring diagram so I don't have to rip it all out without knowing what I'm doing.

So far I have not found any tags on the actual outdrive. I have the engine serial which does identify it as a 1978 255 HP 350 C.I.D Chevy. Any suggestions on how to proceed?

Thanks for your time
RJ

 

[pekstrom]

Hi RJ,

I believe there is a requirement of 3 posts before you can include a picture. Do you have a picture you can link to of the outdrive? Have you contacted Volvo Penta to see if they have any info?

https://www.volvopenta.us/brand/en-us/home.html

Is this where you searched with your serial number?

https://www.volvopenta.com/marineleisure/en-en/for-owners/your-engine/manuals---handbooks.html

I'd be curious to see what you find out. I grew up in a boating family in Sweden and all our boats (as far as I remember) were Volvo-powered. We didn't have any V8s though. I know several of our boats had the AQ270 outdrive though.

 

[pekstrom]

I couldn't help myself from googling this topic a bit myself. :lol::facepalm: It looks like the AQ255B came with the 280B outdrive in most cases. Did you see this book, which seems to cover what you have?

http://www.selocmarine.com/product_detail.php?item=27

Myself I have no affiliation or experience with these manuals but thought perhaps they could be helpful.