Volvo 350 seized

[adamkat22]

Bt thank you for the link. There are only options for manuals 1-4 and looking at the descriptions I guess I don't know which one I am.
As I mentioned, the boat is in the water and I am not able to get it out of the water to remove the drive until the season is over. I understand I could be wasting my time but I have a little bit of time to waste and if there is something I can do this season to troubleshoot (or at least orient myself) I am happy to do that.

I will get a harmonic balancer puller hopefully tomorrow and assume that once it is off it is obvious where the socket goes.
Thanks for your help.

 

[flipbro]

If it turns out to be the motor that's seized and not the drive replace the motor. Seven years of rust in cylinders along with rusted valve seats even if it breaks free no way it will run properly or be reliable.

 

[adamkat22]

flip...that is maybe the most important piece of information i've gotten. a few people at the marina had made me believe that these motors were pretty robust and they made it seem like the fact that it was seized was not such a big deal. but if a seized engine is unsalvageable anyways then i guess there is no point in trying to work on the engine and i will just wait till the end of the season when i can work on the drive and hope that it was only the drive...

i suppose one of my first questions when starting this thread should have been "is this thing worth trying to save"...

 

[Bt Doctur]

try it again , there is a grey horiz bar just under the manual 1 box, that's the scrolling bar,move it to the right
6 years in the water? do you believe the oil stayed in the drive that long and remained clean?
Even if the impossible did happen, the impeller wont pump any water by now ,so it will still have to come out of the water.

 

[adamkat22]

no it was 6 years out of the water. i just put it in the water for the first time since then. it was supposed to just be my living situation and i assumed it wouldn't run but i got day dreamy after talking with a few folks in the marina and thought that i would be able to get it going...

 

[biggjimm]

If you are thinking of replacing the engine (which it may very well need) & you want to orient yourself, pull the heads off & take a look in the cylinders. You'll know exactly what's going on in there & familiarise yourself with at least the top end of the small block Chevy. I'd definitely pull the drive when you get her out of the water. You'd need to service the lower unit & replace the impeller regardless of how you get her powered back up & it's got to come off to pull the engine anyways. Good luck. Jim.

 

[adamkat22]

hey all. just an update for the records. i did buy that socket but it was built as two pieces (the drive was one piece and it fit into the socket...all held together with a roll pin). unfortunately the roll pin started to bend when i applied pressure. at this point its the end'ish of the season so when the boat is out of the water i will look into seeing if the drive is the problem. for what its worth i have put it in neutral and the prop spins, but i assume that the drive would be causing a problem somewhere else if it was seized?

 

[Bondo]

for what its worth i have put it in neutral and the prop spins, but i assume that the drive would be causing a problem somewhere else if it was seized?

Ayuh,..... I can't find anywhere you've mention just What drive is on this motor,.....

I'll venture a guess, it's an MC-1,....
If it's an MC-1, or Alpha,....
Only the prop shaft shifts,.... All the rest of the drive, turns with the crankshaft,....

 

[adamkat22]

Sorry this thread is glacially slow. The outdrive says Volvo Penta but I can't find any other plaque or info on it. Anywhere specific I should look to find more info for you all? Also, the boat is now out of the water so if you can point me towards the correct search terms or procedures I'd love to trouble shoot and see if it is indeed the drive that is seized. Thanks

 

[Bondo]

The outdrive says Volvo Penta but I can't find any other plaque or info on it. Anywhere specific I should look to find more info for you all?

Ayuh,.... Post some pictures, both inside, 'n outside the hull,....

 

[adamkat22]

ok let me know if these pictures help at all. thanks so much!

 

[captmello]

It's a 280 outdrive.

How about some pics of the motor.

 

[adamkat22]

so if it's a 280 and the prop spins does that mean that the problem is indeed coming from the engine?
i attached a (not good) shot of the motor. if there was something specific you want to see let me know?

 

[Scott Danforth]

with it being a volvo, the motor is still shot. the good news is alignment is easier than on a mercruiser or a newer SX drive

pull the drive, then pull the motor.

since there is a fair amount of gunk, crud, and corrosion, it should take about 2 hours (double normal) even for a novice.

 

[adamkat22]

Ok well now that I seem to finally have confirmation that it's the motor that's seized I'm going to start looking for another one to out in here. Do I need to find something that matches up exactly to the codes stamped on this or is the Volvo 280 compatible with many of the merc 350's?

Also it seems like this was redirected and renamed as "Volvo seized" but I thought it was just determined that it was in fact the engine

 

[Bondo]

Also it seems like this was redirected and renamed as "Volvo seized" but I thought it was just determined that it was in fact the engine

Ayuh,.... I moved, 'n retitled yer thread, as there's nothin' Mercruiser about it,....

It's a Volvo 350 turnin' a Volvo drive,.....

You need a GM 350 of 'bout the same vintage to do yer swap,....

 

[Scott Danforth]

any pre-1985 GM 350 truck motor will work as a source for the block and heads.

remember to change the core plugs to brass, replace the head gaskets with stainless steel, and just transfer your marine stuff (oil pan, windage tray, exhaust manifolds, intake, carb, alternator, starter, waterpump) to the new motor

 

[adamkat22]

Ok. Even though the engine is stamped "gm" it's a Volvo?
Sorry for all the questions and thanks for all the help along the way...ill start looking for a new engine

 

[Bondo]

Ayuh,.... The outdrive manufacturers buy Long Block motors from GM, 'n dress 'em with their own accessories for they drives,....

Merc,... OMC,.... Volvo,....

Volvo, 'n OMC used also used Fords up til the mid-90s,...

 

[Scott Danforth]

Ok. Even though the engine is stamped "gm" it's a Volvo?
Sorry for all the questions and thanks for all the help along the way...ill start looking for a new engine

You have a GM 350 marinized by Volvo-Penta. Part of the marinization is specifying the motor with brass core plugs, stainless head gaskets, a windings tray, rear oil sump, and a heavy flywheel.

Then the marinizing company (Volvo-Penta in this case) ads a marine specific ignition, electrical system, fuel system, and exhaust