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TOPIC: Switch long shaft to short shaft 1961 Merc 500's

Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93253

I have 2 motors, (one standard shaft and one shortshaft) same exact powerheads 1961 Merc 500's and was wanting to know if I can switch powerheads with the shortshaft lowerend ?

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Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93270

Yes, they will be a direct swap.

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Remember, my opinion in no way diminishes your opinion, nor yours mine. Collectively, there is a middle ground that is \\\"correct\\\" for the reader balancing all the input.

Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93277

use all the nicest parts to save work and time.

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Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93278

So they will swap out. I would more than likely need a new set of seals.
The drive shaft is seperate from the crank shaft ? . Any advice regarding skillset to perform this swap. Need any special tools ?

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Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93284

minor
scale 1-10 would be a 3.

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Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93285

Order a water pump and replace it while you have it apart. You are just taking one step more than you would do if you were changing the water pump on the tear down....talking 2 motors apart

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CAVU

Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93287

Agreed on the effort - no problem and no special tools. Definitely replace all the seals and gaskets.

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Re: Switch long shaft to short shaft 1961 Merc 500's 10 years 6 months ago #93292

And buy a Merc repair manual before you even pick up a wrench.

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