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Old 21 May 2012, 01:28   #1
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1994 xr2 powerhead to 99 merc casings

Good morning all

can some one enligten me, will a 94 xr2 200hp power head complete with stator wiring etc bolt straight on to my 1999 200hp using my gear box

are splines the same for the gear box drive, and are the bolt down stud centres alike for my gear box,

tried looking in manuals and stuff but with no clear awnser
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Old 21 May 2012, 06:10   #2
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What you need is to eithrer get onto the Ishop Marine or Boats.net microfiches. open a couple of windows, then:

1) find your engine. Note the part numbers either side of the "join". (you might need to also take the tray into account).
2) for your 1994 powerhead, find the "standard" 200 Hp microfiche, d othe same comparison. if they are coross compatible, chances are the XR powerhead will have a differnt part number, but (for the purposes of this experiment) a leg is a leg.
3) then open a third window. Compare the '94 standard engine with the '99 one. Assuming no major model changes (e.g when the Clamshell turned into something more conventional) you will probably find the same leg. part number. Lower tray may be different to blend in with a different top cowl, but the leg is less likely to have changed. (I have cross decked leg components from a 1997 engine to a 1979 before)

Tip 1: take a careful look at the lower tray - some Mercs had an "exhaust adaptor" which sandwiched in where most engines put the lower tray. I say that as I can't remmeber when the wraparound cowls dissappeared.

Tip 2: It's also worth cross checking the equivalent Mariner / Yam parts lists as some of the part number seems to relate to the paint job....


If nothing seems to cross reference, it's time to get out the measuring stick & start counting splines! Probably doing that anyway at a high level to confirm what you have found.


luck:
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Old 21 May 2012, 10:38   #3
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cheers for that
chuff me not looking an easy decision to make
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Old 21 May 2012, 12:39   #4
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It can be a long tedious slog through the microfiches, but as a result of that I now have a single ram PT Clamshell that I got as a manual tilt outside ram machine.....

Exhaust gaskets can also give you some juicy clues - their part numbers don't cary colour codes.
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Old 22 May 2012, 04:12   #5
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Quote:
Originally Posted by nugent View Post
Good morning all

can some one enligten me, will a 94 xr2 200hp power head complete with stator wiring etc bolt straight on to my 1999 200hp using my gear box

are splines the same for the gear box drive, and are the bolt down stud centres alike for my gear box,

tried looking in manuals and stuff but with no clear awnser
Will bolt straight on .
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Old 22 May 2012, 08:03   #6
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cheers mucka

time to haggle then
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