55 25E

Show & Tell time! Photos, comments, stories, etc

55 25E

Postby Toby Hall » Thu Mar 14, 2019 9:42 pm

My new project was my friend Bill Swift's motor. It was his father's. He gave this to me when he was clearing out his garages, before he passed away.  Finally, I'm getting into it.  It'll be one of several motors that I hope to run on an AlumaCraft Model R that I picked up last summer and have been working on over the winter. I hope to compare my KG7; Chris Craft Commander; KH7 this 25E and another double dark secret engine that I can't divulge yet....
   8-)

IMG_5589.jpeg


IMG_5776.jpeg
Only broke two bolts! One in the tiller and one that held the starter solenoid on to the top of the block.
The stuff you can't see - That's what's important.
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Re: 55 25E

Postby 208rooster » Thu Mar 14, 2019 11:49 pm

Toby I hope you post lots of pictures of this build I am getting ready to put a Mark 25 together for the first time and could use all the help I can get. Thanks Rick
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Re: 55 25E

Postby Fingerlakeskid » Fri Mar 15, 2019 12:10 am

Keep track of the ignition parts!  :mrgreen:
Stan Augustine

Mark 30 tiller,  (2)Mark 55, Mark 58A (2)Merc 200 FGS, Merc 450, Merc 500, Merc 60.  1950 CZT Penn Yan Swift, 1957 Alumacraft FD, 1985 Larson Senza w/Merc 1150,
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Re: 55 25E

Postby chuckw » Fri Mar 15, 2019 12:30 am

Mark 25s are one of my favorite motors: I have 6 (one on a Q tower). I"ll bet yours outruns the KG7. [fingerscrossed.gif]
KG7(4), Mark20H(2), 20H conversion, KF7(4), KE7, KH7, 25SS, KG7H(3), KG7Q, KG4Q, Mark 15 pumper, Mark 25Q, Mark 15, Mark 20, Mark 25(5), KG4, KF5, KD4, KD3, KE4, Mark 7, WG7, WN7, WM7A, Mark 20 rat.
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Re: 55 25E

Postby mark 55 » Fri Mar 15, 2019 2:04 am

Nice Toby! A good choice to share here! Thanks and good luck!!
Scott
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Re: 55 25E

Postby mercaholic » Fri Mar 15, 2019 1:00 pm

A bit of a tough motor to work on due to close clearances to suit the starter components.   A well engineered model tho in order to fit all the parts under the hood.

I worked an a few of them in the past, most recently an acquisition from North Tonawanda.
Every one I worked on, I kept thinking of the poor guys on the assembly line that had to bolt them up.... [violin.gif]
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Re: 55 25E

Postby zul8tr » Fri Mar 15, 2019 2:34 pm

I bet they got reeeeal good at assembly if that was mostly all they did. Just like anything you do often you get expert at it. Like my 25ss It has been apart so many times I can do it very quick and reassemble correct very fast.

And yes the assembly line must have been fun  [wrench.gif]  but boring and tedious at times.  

My Dad had difficult tedious assembly jobs on the P47 Thunderbolt during WWII as line foreman at Republic Avaition in Farmingdale Long Island. He said the women were the best and did it right and fast. But they were sure thinking about Pilots safety with great planes in Europe, so getting it right was very important [usa.gif]
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Re: 55 25E

Postby Toby Hall » Fri Mar 15, 2019 9:11 pm

Fingerlakeskid wrote:Keep track of the ignition parts!  :mrgreen:


IMG_5696.jpeg

I might have to lose these parts on purpose!   :wink:
The stuff you can't see - That's what's important.
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Re: 55 25E

Postby ctpdsr » Fri Mar 15, 2019 9:32 pm

OMG - I will stick to 4-Cylinder Mags!

Kinda interesting. A 1955 MK55 would have had an FMC mag with a coil that would get squishy like a rotten lime with age. 2-Cylinder mags like yours have 2 coils that crack apart like mummy bones. Over the span of just 2-3 years the Merc 4-Cylinder mags had way better quality coils that in many cases can be cleaned and used today! I don't know the exact timeline for the 2-Cylinder evolution, but the coils in my 1967 Merc Phelon plate have held up just fine.


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Re: 55 25E

Postby 58woody » Fri Mar 15, 2019 10:33 pm

Maybe Carl had a destruction method built in, LOL
Mark 6, 1956 Mark 55 & 55E, 1959 Mark 55A, 1958 Mark 58, 1960 Merc 300, 1961 Merc 500, 1961 Merc 700, 1964 Merc 1000 Bradford, Ontario, Canada

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Re: 55 25E

Postby mercaholic » Fri Mar 15, 2019 11:22 pm

ctpdsr wrote: I don't know the exact timeline for the 2-Cylinder evolution, but the coils in my 1967 Merc Phelon plate have held up just fine.
Chuck


The later Phelon coils had an updated mag plate design and the coils had much tougher coatings that kept them well intact from splitting but the coils were also firmly fastened onto the laminates such that removing them to replace was a challenge.
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Re: 55 25E

Postby Fingerlakeskid » Sat Mar 16, 2019 12:53 am

At least it's Phelon. The Mark 25 and 25E are great motors. You'll love that on your R. Get it done so we can take it to Tomahawk!
Stan Augustine

Mark 30 tiller,  (2)Mark 55, Mark 58A (2)Merc 200 FGS, Merc 450, Merc 500, Merc 60.  1950 CZT Penn Yan Swift, 1957 Alumacraft FD, 1985 Larson Senza w/Merc 1150,
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Re: 55 25E

Postby 208rooster » Sat Mar 16, 2019 1:04 am

Toby here's what mine is shaping up to look like.
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