Coronet 24 Botved-VP AQ130 engines removal

Lodka

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Aug 25, 2008
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Just bought a 1966 Coronet 24 with the expectation that both the 2 Volvo AQ130 engines need rebuilding. Anyone familiar with these boats? And has anyone pulled the engines? Looks like it will be quite a trick getting them out without removing some "permanent" decking as both the forward and aft ends of the engines extend a few inches beyond the hatch opening. Any advice/experience would be much appreciated.
 

salty87

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Aug 12, 2003
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Re: Coronet 24 Botved-VP AQ130 engines removal

is that an inboard?...no experience with it but you might be able to take the transmissions off before pulling them out. disconnecting the drive shaft should give you a little wiggle room. got pics?

looked for a pic and found this... don't usually find stuff about old boats...
http://freespace.virgin.net/simon.sherlock/mailbox.htm
 

Bsquared

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Re: Coronet 24 Botved-VP AQ130 engines removal

Might be able to tilt them as you pull them up; less tall than long? _ vs l
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

AQ130's are a lot newer than 1966 and based on the Volvo B20 motor, which is nearly for ever running. Is anything wrong with them ?? Have you taken compression readings ? These motors go more than 400000 miles in cars. I once had a 21' with one, that had ran for more that 20 years without a problem. The valves tend to rust in the guides, if not wintherized, but that only takes a rebuild of the cylinderheads. They hang by the transom collars. Pull the drives outside, all cables, hoses and exhaust in boat. There are bolts outside, in collar behind the drive. Support the motor before removing bolts. Pull motor a bit forward in boat, and viola !! Its a danish build boat, where are you located ?
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

We say over here, that pleasure boat motors run 50 hrs a year, as a rule of thumb, and as I remember the AQ130 came out from around 1976, which makes them 32 years at the highest. 32*50 is 1600 hrs, that shoudnt kill them at all, double wouldnt either. Check them out !!
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

forgot to add, mine ran every year in heavy salt water and it was seawater cooled, no problem.
 

Lodka

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Aug 25, 2008
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Re: Coronet 24 Botved-VP AQ130 engines removal

Thanks for the many responses. Starting with Salty's reply, no they are I/O's, and they are pretty much shoe-horned under the aft seat. Bsquared's idea was one that crossed my mind as well. Yes, G Dane, the boat was repowered about 10 years ago (and I agree those Volvos were great cars, altho I'm most familiar with the B18's in the Volvo 122). I'll tell you why I'm pulling the engines-the starboard engine won't turn, and I don't know if it's stuck from sitting or if it actually seized up while running. The port engine cranks over with the starter motor and needs either a valve job-or maybe just has a stuck valve-indicated by the way it is cranking over. The engines have been sitting since 2002, and that is certainly plenty of time for valves and rings to get stuck. So perhaps it's wise to pull the heads first.

The drives are 250's. Are you telling me the drives can come off first making the engines easier to remove? I'll have to block the engines up...This is my first I/O, so I have a bit to learn.

Yes, I know it's Danish, and you may laugh, but it's part of the reason I bought it! The Danes have been building boats for a very long time. (I'm also part-Danish going back to 19th century) I like the design of the boat- the extensive use of wood even though the hull is fiberglass, and the rather ingenious use of space, the icebox, the galley stove, stand-up head, and so on. I am on Long Island, NY. There are a few of these Coronet boats on Rhode Island and Connecticut, but it appears they are mostly in Europe. According to the fellow I bought it from, this particular boat came across the Atlantic under its own power following a larger yacht for re-fueling.
Coronet24-engines_001w-1.jpg
 

Bsquared

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Re: Coronet 24 Botved-VP AQ130 engines removal

Holy crap, they ARE wedged in there!Are you sure there's nothing else you can ull off the transom, or that the floor in front doesn't come up? Gonna be a bear. Even though they hang off the transom drive collar, I'm pretty sure there is still a front mount on each side.
 

Lodka

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Re: Coronet 24 Botved-VP AQ130 engines removal

Yes, it's tight. As G Dane said, the engines are suspended on the transom and there are no other mounts.
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

Ha Ha I actually has a red 122S with a B18 with Stromberg Carb-Set-up exactly like your pair. Nice car, back then. When those came in, the floor was up, no doubt, unless the camera angle lies. Mine was a 1976, as mentioned, and it had a newer carb set-up. There were also a 112 HP version, you can tell by the exhaust, the 112 exits the manifold in front and is attaehcd to the drive collar with a bent tube. The drives should be marked with year on type plate. In 1976 the 270 driuve with tilt was out I thing that pair is a bit older. The B18 and B20 is almost the same, just different bore, as I recall. A little info http://www.marinepartseurope.com/en/e-volvo-penta-345-AQ130D.aspx
 

Lodka

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Re: Coronet 24 Botved-VP AQ130 engines removal

G Dane, thanks for the excellent links to the parts sources and also to the Coronet club. Could you clarify one thing-does one remove the outdrive first before the engine? I think that's what you were saying in your earlier post; I just want to be sure. I think that will make tilting the engine easier, as Bsquared suggested.
BTW, are you in the US or Europe?
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

I am in Denmark. You have to remove the drives to get to the outside bolts. Unfortunately you have to have room to pull the motors forward a bit as I recall. You can maybe make a little space by removing all tubing, seawater filters, seawater pump a.s.o. on front of motors.
 

G DANE

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Re: Coronet 24 Botved-VP AQ130 engines removal

http://www.marinepartseurope.com/en/volvo-penta-explodedview-7736850-44-12876.aspx Take a look at this exploded drawing. The intermediate housing that is boltet to the cranckcase, runs through the transom housing, with a very large o-ring both on outher and inner side. These orings seals and allows motor to flex a bit. On the outside there is a clamping ring # 37, with long bolts that runs all the way into the intermediate housing ( where the cars have a clutch ). Motor must be supported before these bolts are removed. Once they are, slide the motor a bit forward, and its free.
 

Lodka

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Aug 25, 2008
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Re: Coronet 24 Botved-VP AQ130 engines removal

G Dane, I've been away for a few days and just read your postings. Thanks very much! I'll look in more detail at all the links later today.
 
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