alpha 1 genIi

[pemberton5]

hello need help took my gear case off after reading all the post my problem is a piece fell out and i caint find where it goes it is a metal piece triangle shape with numerous holes in it need help real bad. it is off a 1998 bayliner capri with a 3.0l merc

scott

 

[Bondo]

Re: alpha 1 genIi

Ayuh,... That's a piece of the exhaust shutter, you need a new 1....
It lives in the top of the exhaust downpipe...

 

[pemberton5]

Re: alpha 1 genII

Re: alpha 1 genII

could you post a pic i caint find in any of diagrams thanks for your help

scott

 

[Fun Times]

Re: alpha 1 genII

Re: alpha 1 genII

could you post a pic i caint find in any of diagrams thanks for your help

scott

See number 6 in this link for your part.

http://www.mercruiserparts.com/Show...8.png&inbr=4893&bnbr=270&bdesc=Exhaust+System

 

[pemberton5]

Re: alpha 1 genIi

im sorry sir but i do not see the part i have i only removed he lower unit to do a water pump could ya please help.
scott

 

[Deanrw3]

Re: alpha 1 genIi

This was me exactly 2 years ago. I was so confused out where this piece was coming from.

The exhaust shutter sits inside the exhaust manifold inside the boat. The exhaust runs down and out the out drive. So this piece you found is the exhaust shutter that broke off inside the manifold and fell all the way down the exhaust pipe to where it got caught (and you found it) at the end of the exhaust line, which is inside the out drive.

You are doing good replacing the raw water pump because it was most likely ran dry which tends to burn on the exhaust shutters (flappers). BTW it is an easy and inexpensive fix. Just split the pipe where the manifold and pipe meet inside the engine bay and you will see where it sits. Go by the part first and it will make more sense.

I will get you a pic if you really need it.

dean

 

[pemberton5]

Re: alpha 1 genIi

thanks i really need pic cause i can not find it on any of the diagrams i have the impeller i took out was working fine and even looks good it didnt need replaced i just bought boat and wanted to service her up its a 98 and has sat in garage most of its life

 

[180shabah]

Re: alpha 1 genIi

There is a pic of the part and it's location in the link above.

For further clarification, head over to the adults only sticky and download the service manuals for both your engine and drive.

 

[pemberton5]

Re: alpha 1 genIi

I have looked and didnt see it will try again thanks tho!

 

[Deanrw3]

Re: alpha 1 genIi

yeah the part you need is #6 in the above link. It is between 2 and 8 ...


you found it here:

it looks like this:

and it goes here: after you buy a new one

 

[pemberton5]

Re: alpha 1 genIi

thats it man thinks for all your help your a lifesaver the part actually fell on the ground when i took off lower unit and i thot o s@#$ whats that

 

[pemberton5]

Re: alpha 1 genIi

hello one other thing what excatly does that part do ??

 

[gofastcrazy]

Re: alpha 1 genIi

when you stop the boat and that rush of water hits the back,it stops the water from rushing up the exhaust and filling the cylinders with water. IE hydrolocking youe engine.

 

[pemberton5]

Re: alpha 1 genIi

Ok got new part took exhaust all apart and found that the shutter looked ok no missing part i assume the person before me had the prob and replaced it but could not or did not find the broken off piece. i looked best i could did not see any probs gonna replace it and button it up should i be worried bout anything else!!

 

[180shabah]

Re: alpha 1 genIi

I would be worried about all the fish you missed today.....