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Internal exhaust flapper replacement question and advice please

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Internal exhaust flapper replacement question and advice please

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Old 06-26-2015, 06:10 PM
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Originally Posted by MnFastBoat
anyone have a part number and vendor for the Y-pipe internal flappers?
I have not looked, but after 15 years I am assuming mine might need some help since I have replaced the tip ones a couple times already
Planning on opening up this weekend to have a look
I'm guessing yours are gone like mine were...

807166A3 should be what they supercede to for the new style. That number is for a pair also. I bought mine from a local Merc. dealer.
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Old 06-27-2015, 05:00 AM
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Thank you, Marine Max is no help at all!!
are these easily replaced?
I see it being a pain to go digging for carnage
also I see CPerformance has 2 styles, looks like one sits on top of the pipe?
the other looks like it clips in? or is welded in?

Originally Posted by Diamond Dave
I'm guessing yours are gone like mine were...

807166A3 should be what they supercede to for the new style. That number is for a pair also. I bought mine from a local Merc. dealer.
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Old 06-27-2015, 10:50 AM
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Originally Posted by MnFastBoat
Thank you, Marine Max is no help at all!!
are these easily replaced?
I see it being a pain to go digging for carnage
also I see CPerformance has 2 styles, looks like one sits on top of the pipe?
the other looks like it clips in? or is welded in?
The old "Y" pipe style has a pin. The replacements I posted are the "new and improved" versions that just snap in on the top of the "Y" pipes. Very easy to install once you have access to them. As US1 stated earlier, there may be pieces of your old ones stuck down stream in the Y pipe but I did not experience that in my case. Even so they should be easily removed.
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Old 06-28-2015, 01:10 PM
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well I pulled the hatch this morning, loosened up the hoses, turned the diverts sideways and was pleased to find all 4 in the correct locations!
only thing missing was the rubber grommet that I had found behind my prop many years ago!
best thing, is I came in the house to look for the 'part' not knowing if I kept it, found it within 2 minutes!!
so she is going back together shortly

thought about updating, but all vendors I see have a huge lead time for shipping and I am not a patient person
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