Y pipe will not fit , please help me indentify what I need!!

[BowT]

Ok, I replaced my old outdrive (alpha1) with another alpha one and the y pipe is not matching up. I am almost done with this hell of a task that I took on and now I have this issue holding up the engine install. I dont know if the newer outdrive that I put on is a gen 2 or what. everything has bolted right up until this point. I have included pics of the old ypipe and the new outdrive im trying to put it on. Someone please help me if you know what y pipe I need. Thank you. engine is a merc 228 , boat is a 1980 if that info helps.

 

[BowT]

Re: Y pipe will not fit , please help me indentify what I need!!

btw, I have 4 allen head bolts that came out of the old one and a long bolt, this new drive takes 5 bolts with no long bolt

 

[v8power]

Re: Y pipe will not fit , please help me indentify what I need!!

What year is the outdrive u are installing, its likely that if your boat is a 1980 then you have a pre alpha y-pipe, if the new drive is newer you will need a alpha one y-pipe.

 

[BowT]

Re: Y pipe will not fit , please help me indentify what I need!!

What year is the outdrive u are installing, its likely that if your boat is a 1980 then you have a pre alpha y-pipe, if the new drive is newer you will need a alpha one y-pipe.

the alpha one y pipe is oval, or the one that goes with this drive is. I called the guy I got the outdrive from, he has the y pipe that went with it , it only has 4 bolts. the hole that has no bolt even in my y pipe is not inside the o ring. so would it hurt to plug the hole up that has the long bolt that I will not be using and just bolt the y pipe up I have. it lines up with o ring , I would think that's all that matters.

 

[Pete104]

Re: Y pipe will not fit , please help me indentify what I need!!

If you look at the "seal surface", you will see the 4 bolt sits the same way!

 

[BowT]

Re: Y pipe will not fit , please help me indentify what I need!!

If you look at the "seal surface", you will see the 4 bolt sits the same way!

but what about the hole from the 5th long bolt ? do I need to plug that hole or dies it get closed off since the new drive has no hole there anyway. I hope I'm not being confusing

 

[Pete104]

Re: Y pipe will not fit , please help me indentify what I need!!

It goes nowhere. The big "opening" is exhaust. The smaller "holes" are water. Why do you have an issue with the long bolt? The housing hasn't changed in 30+ years. The "Y-pipe" has, defenitly!
4 bolts & it's on!

 

[BowT]

Re: Y pipe will not fit , please help me indentify what I need!!

It goes nowhere. The big "opening" is exhaust. The smaller "holes" are water. Why do you have an issue with the long bolt? The housing hasn't changed in 30+ years. The "Y-pipe" has, defenitly!
4 bolts & it's on!

ok just wanted to make sure, lots knows I font want to pull the engine over a stupid mistake. thank you for your help