You have an AQ151 motor with an SP290a drive. The AQ151 is a motor/drive package
It looks clean
Make sure to grease the PDS
Pull the drive and do a full drive maintenance
Check the PDS shaft for play. If there is any, pull the motor and rebuild the PDS assembly with new bearings and seals...
So you wore thru the gel, the 1/8" of fiberglass, and now are to the core?
If the core is good, and dry, just grind, add 2 layers of 1708, and add some gel
Most likely you will have some core replacement to do first
Got pics?
That's the part number tag for the transom shield. By the part number, most likely a 290a. Used behind everything from a 3.0 to a 454 and some diesels
You need to get the serial number off the transmission input bearing section to identify the drive. However over the past 40 years, it may or...
New motor plus drive (long tail) is much much more than $20k. Just the motor in a crate is that.
Talk to the marina. The $20k is most likely for them to just pull the engine, get a remanufactured long block thru their supplier, add new manifolds and install with your old parts (oil pan...
Spent many hours making this list from the data in the holley library files. Its a searchable holley reference spreadsheet. very handy for finding parts, etc. Download as needed.
I will do my best to keep this up to date as the Holley reference library is added to.
#holley, #Volvo-Penta...
first, welcome aboard
the pics look bad. however we can not tell as you are way too close for us to see context.
stand back 10 feet and take a pic
additionally, you will find more rot and issues in your 35 year old boat. it is all fixable, it just takes work. look at the 3rd sticky at the...
when you buy a used motor, you need to do all the maintenance the prior owner didnt do before they sold it.
impeller, gear case service, PTT fluid service, new plugs, etc.
you did check the motor over prior to purchasing and at least did a compression test?
I have a boat cover and I use a 10x20 canopy over the top.
a boat cover by itself breaths and doesnt get mildew. a boat cover covered with a tarp will get mildew
VOC cure, heat cure, or 2-part catalyzed paint?
lightly scuff with a 3m green scotchbrite pad
do not blast unless you plan on completely disassembling and doing it right.
there is no horsepower limit in I/O motors. so you could put 500hp motor in there.
however a new 5.7 longblock dropped in with new manifolds, etc. should be in the $8-10k range
your looking at over $20k for the new 5.3 or 6.2 LT based motors.
If it was my boat, I would strip out the fuel...
