260 Mercruiser Shutter/Flapper

[PropNut100]

After reading many of the old posts, I have a question regarding exhaust shutters. First, I will describe what I have:

1983 Tiara 2200 Continental
260 Mercuiser
Alpha 1

I am in the process of replacing manifolds and risers, as well as exhaust connecting boots, etc. Removed the exhaust boots from the starboard side and found no exhaust shutter. The post/pin is there, but the shutter is missing.

I have noticed that the water flow from the starboard side exhaust of the sterndrive is significantly less than from the port side.

Is this shutter stuck in the Y-pipe? Or is it likely disintigrated and gone?

Yes, I run in salt water.

Thank you in advance,

Ray

 

[Bondo]

Re: 260 Mercruiser Shutter/Flapper

Ayuh,... Welcome Aboard,...

It Could be lodged in the Y-pipe,...

This 1 made it alittle bit farther,...

 

[PropNut100]

Re: 260 Mercruiser Shutter/Flapper

Do shutters decompose or is it stuck in there?

Ray

 

[lmannyr]

Re: 260 Mercruiser Shutter/Flapper

I found mine just as you see in the picture above. Remove the drive and take a peek. My riser was much hotter on one of the sides, can't remember which. Then when I took off the drive to for reg. maint. and saw the above picture. After replacing the shutters to both sides, riser temps seemed to be very equal by touch.

Good luck..

 

[PropNut100]

Re: 260 Mercruiser Shutter/Flapper

So it is in there somewhere? Geez, I am not gonna take someone to court over this.

 

[lmannyr]

Re: 260 Mercruiser Shutter/Flapper

Could be its in the pipe, or it could be completely disintigrated. Only one way to really know, pull that outdrive.

Yup!

 

[PropNut100]

Re: 260 Mercruiser Shutter/Flapper

Thanks for the info. ....

 

[Bondo]

Re: 260 Mercruiser Shutter/Flapper

Could be its in the pipe, or it could be completely disintigrated. Only one way to really know, pull that outdrive.

Ayuh,....

It takes removing 6 nuts, the trim rams,+ an $8.00 gasket set to find out.....

 

[Lodgepole]

Re: 260 Mercruiser Shutter/Flapper

My 3.0 OMC flapper burned off the pin and jamed in the drive port. Ran like crap above 3000 and got hot. Looks like if they can make tiles for the space shuttle, they could use a material that exhaust heat wont fry. Just make it out of anything laying around, the suckers can fix it when it goes.

 

[AZSenza]

Re: 260 Mercruiser Shutter/Flapper

My 3.0 OMC flapper burned off the pin and jamed in the drive port. Ran like crap above 3000 and got hot. Looks like if they can make tiles for the space shuttle, they could use a material that exhaust heat wont fry. Just make it out of anything laying around, the suckers can fix it when it goes.

I dont think we could afford to drive our boats with the cost of a space shuttle tile or two on 'em!