Volvo Penta 3.0 GSP-A Exhaust Bellows Issue

[scion707]

Hi everyone,

So I have a Volvo Penta 3.0 GSP-A with a Cobra SX drive and my Riser does not align with the exhaust pipe. Never noticed this until one day my motor overheated and caused the bellows to melt and tear. I checked to see if I have the correct riser and a dealership confirmed this and told me that both parts SHOULD align. Has anyone had the same experience or know how to solve this issue. Thanks

 

[bruceb58]

Have a picture?

 

[scion707]

Have a picture?

Unfortunately I don't have one at the moment. And I'll be away from home for the next few days. The best way I can explain it is that the riser and exhaust have the correct gap length BUT the riser is a few inches forward(towards the bow) from the exhaust. Tried to move the exhaust with no luck.

 

[bruceb58]

Are you the original owner of this boat?

Has motor ever been swapped out?

 

[scion707]

Are you the original owner of this boat?

Has motor ever been swapped out?

I am not the original owner and not sure if the boat has had a motor swap. Signs shown that it could have because there are some random disconnected wires but that information was never released to me when I purchased the boat. Could the motor not be mounted in the correct location? It did cross my mind to try to move the motor back a few inches. Is that a possible solution?

 

[bruceb58]

No, you can't move the motor.

You see any part numbers on the manifold or riser?

 

[Maclin]

How far off is it? There is a reason the riser to exhaust joint is a rubber component.

 

[scion707]

No, you can't move the motor.

You see any part numbers on the manifold or riser?

Going to check this afternoon and get those part numbers.

EDIT: RISER: 3857810
MANIFOLD: 3858870

 

[scion707]

How far off is it? There is a reason the riser to exhaust joint is a rubber component.

Ill take measurements. Should be around an inch. I was under the impression that it was suppose to be aligned. Both bellows have torn on the rear side

 

[scion707]

No Title

its 3/4 inches off

 

[bruceb58]

I look up that riser part number and it says it is for early Volvo 3.0. What year is your engine?

EDIT: That part number for the riser does not match what is supposed to be with your engine if it'a a 3.0GSP-A

Should be 3863071. An older number is 3857798

Your manifold number matches up.

http://www.volvopentastore.com/Intak...view_id.767673

 

[Maclin]

Some of them are formed from the factory with a jog in them.

 

[scion707]

I look up that riser part number and it says it is for early Volvo 3.0. What year is your engine?

EDIT: That part number for the riser does not match what is supposed to be with your engine if it'a a 3.0GSP-A

Should be 3863071. An older number is 3857798

Your manifold number matches up.

http://www.volvopentastore.com/Intak...view_id.767673

Serial # 4012043714. Database says it's a 1997-2001.

So my riser is causing the issue?

 

[bruceb58]

My suggestion is to take off your riser and take it to a dealer to see if it matches up with the riser in the link I posted.

My bet is someone replaced it with the wrong riser.

 

[scion707]

My suggestion is to take off your riser and take it to a dealer to see if it matches up with the riser in the link I posted.

My bet is someone replaced it with the wrong riser.

I actually took it in to a dealer and they told me that it's the same. I tried looking up the part number online but couldn't get many results. The only thing I could find was this link to an ebay posting:

 

[bruceb58]

Hmmm...Not sure what to suggest at this point.

 

[scion707]

Thanks for all the help and suggestions so far Bruceb58 :thumb:. I'm wondering if I'm the only one with this issue and if the bellows will tear again if I install a new one. The first time it happened, it took me 2 hours to get back to the docks on my kicker

 

[Maclin]

The only reason for failure the first time was lack of cooling water flow, right?

 

[scion707]

The only reason for failure the first time was lack of cooling water flow, right?

CORRECT. The first TWO times actually. Once I found the overheating issue and got that fixed, I stayed skeptical about the bellows because of how misaligned and stretched it is. Just wondering if there's a way to get it aligned again or if its meant to be that way. Thanks

 

[scion707]

Bump