Mercrusier se106 same as alpha?

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bozz89

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« on: April 17, 2009, 04:00:09 PM »
Need to know if they are the same and the potential differences? The big thing i need to kno is if the y pipe block off plate is the same for both of them cuz im going to convert the exhaust over to thru hull on my 79 spectra...so any info on this would be helpful thanks!! ;D



GT Jets

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« Reply #1 on: April 17, 2009, 04:02:03 PM »
Need to know if they are the same and the potential differences? The big thing i need to kno is if the y pipe block off plate is the same for both of them cuz im going to convert the exhaust over to thru hull on my 79 spectra...so any info on this would be helpful thanks!! ;D

There is a slight difference in the "Y" pipes and I believe the one you have has three bolts, the later Alpha's have four, I always just make mine from 1/4" plate aluminum anyways...

GT
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

bozz89

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« Reply #2 on: April 17, 2009, 08:05:05 PM »
sweet thanks i may do that

bozz89

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« Reply #3 on: April 18, 2009, 12:26:36 AM »
hey GT do you have any pics of how you did it?

GT Jets

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« Reply #4 on: April 18, 2009, 12:33:45 AM »
hey GT do you have any pics of how you did it?

May be able to get some Sunday (doing the Carrera)........The last one I did was done on a water jet, what a cool tool... :sly:


GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

NAFLASH

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« Reply #5 on: April 18, 2009, 10:47:53 AM »
well i took a look at it and called stern drive engineering and found out it is most likely a 3 bolt so all i have to do is remove the y pipe and cap it with that plate right?

GT Jets

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« Reply #6 on: April 18, 2009, 11:01:30 AM »
well i took a look at it and called stern drive engineering and found out it is most likely a 3 bolt so all i have to do is remove the y pipe and cap it with that plate right?

Yes sir...you can also remove the exhaust bellows on the outdrive if you so desire, it won't serve any purpose anymore. You will want to use some below the waterline silicone on the mating surface, some of them use an O ring, but I believe the later ones, can't remember...

Use stainless allen bolts or reuse the factory bolts, make sure they don't bottom out, also use lock washers and some blue Loctite, you don't want those bitches backing out!

Good luck!

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

NAFLASH

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« Reply #7 on: April 18, 2009, 12:47:40 PM »
aight sounds good hey have you ever tired using those harmin marine y pipe plugs? i was thinkin bout it but they r little expensive id rather just cut my own piece of plate and call it good prolly just gunna cut a 1/4 piece of stainless to cap it and drill three holes in it. Im gunna see if i can do it w/o having to pull the motor....also wut kind of exhaust hose did ya use preferably rubber for my application...

GT Jets

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« Reply #8 on: April 18, 2009, 01:33:08 PM »
aight sounds good hey have you ever tired using those harmin marine y pipe plugs? i was thinkin bout it but they r little expensive id rather just cut my own piece of plate and call it good prolly just gunna cut a 1/4 piece of stainless to cap it and drill three holes in it. Im gunna see if i can do it w/o having to pull the motor....also wut kind of exhaust hose did ya use preferably rubber for my application...

Ever try cutting a 1/4"piece of stainless?  The transom assembly is made of aluminum, stainless would bo overkill IMO..Doing it W/O removing the engine is not worth the effort, you can have the engine out in under an hour. Just move it forward 2'...

Use wire reinforced marine exhaust hose, I normally use aluminum or stainless tube with small sections of hose at each end to make the span between the outlets of the risers and the tips, it's just better and more reliable.

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

bozz89

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« Reply #9 on: April 18, 2009, 01:48:19 PM »
yea i have tried cuttin a 1/4 piece lol pain in the ass but i have a torch i could use not to worried bout it or ill find sum aluminum thanks for all the info though ill post sum pics when i get it done.

 


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