whats holding my y-pipe in?

[jonesy1186]

Same story, replaced lower shift cable, found exhaust shutters remnants. Decided to replace, have moved motor forward enough to get the 4 bolts off y-pipe but y-pipe wont seperate from transom. Do have some slight twisting movement, but thats it. I'm assuming the whole thing needs to come off, it's the old three piece style. ( '77 351 ford ) Also assuming once I get it off it will be obvious where the new ones will mount, am I right?

 

[achris]

Re: whats holding my y-pipe in?

5 bolts...

 

[jonesy1186]

Re: whats holding my y-pipe in?

Was afraid of that! Can't find #5 bolt, any links to a picture of bolt pattern out there?
Thanks for the reply.

 

[haulnazz15]

Re: whats holding my y-pipe in?

Should be two at the bottom, one at the top, one on the starboard side (i think), and one allen-head right in the middle.

Here is an eBay ad for the 302 y-pipe that shows the bolt pattern: http://www.ebay.com/itm/Mercruiser-...284102&pt=Boat_Parts_Accessories_Gear&vxp=mtr

 

[Don S]

Re: whats holding my y-pipe in?

 

[jonesy1186]

Re: whats holding my y-pipe in?

Dohh! The allen head. Felt it, but couldn't quite see it. Glad i didn't go crazy with the pry bar! Thanks guys!

 

[jonesy1186]

Re: whats holding my y-pipe in?

Ok guys, pipe came right out. But I'm not seeing anything obvious as to where the flappers go ?

 

[Don S]

Re: whats holding my y-pipe in?

#22 is the shutters, one in each side of the Tee (#24)

 

[haulnazz15]

Re: whats holding my y-pipe in?

One flapper goes on each side of the "T" in the center section. There should be some plastic rings that set in a groove on the inside of the pipe. Make sure you install them so that they would close when water comes from the inside/exhaust flows out freely.

 

[jonesy1186]

Re: whats holding my y-pipe in?

Thank you Don and haulnazz, you guys are great to have around.