Mercury KH-7

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Treeguy
Posts: 37
Joined: Tue Mar 10, 2015 7:32 pm
Location: Bemidji, MN

Mercury KH-7

Postby Treeguy » Sat Apr 14, 2018 7:05 pm

Last weekend I acquired two Mercury KH-7's not too far from my home in northern Minnesota. I haven't worked on too many Mercurys and would appreciate some help. First off, does anyone know of a good site to find a service manual?

Second question: I haven't posted any photos on here since the photobucket debacle. The photo on here was placed using dropbox. No matter what photo orientation I save and upload to dropbox and then link to this forum, the orientation always comes out sideways. Does anyone have a better suggestion on how to place photos on this forum?

Image

jw in dixie
Posts: 402
Joined: Mon Mar 09, 2015 5:06 pm
Location: Huntsville, AL
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Re: Mercury KH-7

Postby jw in dixie » Sat Apr 14, 2018 7:22 pm

There may be a Mercury manual you can access online. I used to go to the library and copy whatever pages I needed from their Tech section. Some manuals are better than others. I sold my Merc manual a few years ago, along with the notes and diagrams added thereto.
JW in Dixie

david bartlett
Posts: 1302
Joined: Tue Mar 10, 2015 10:15 pm
Location: Western Maine

Re: Mercury KH-7

Postby david bartlett » Sat Apr 14, 2018 7:35 pm

Treeguy,

Regarding the photo, the picture has to be wider than it is tall to orient properly. You can crop a photo, or just take it so it is wider initially. The longer edge of the pic must be top and bottom, not on the sides.

Hope this helps.
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Member Pine Tree Boating Club chapter of AOMCI

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green thumbs
Posts: 315
Joined: Mon Jul 06, 2015 1:21 pm

Re: Mercury KH-7

Postby green thumbs » Sat Apr 14, 2018 8:43 pm

KH7 is a Green Tanker that shares (many not all)parts with with Mark 15 and Mark 20
I believe you will find the Illustrated Parts Manual keyed to part name and part number
more than a little helpful. You may be able find a downloadable manual at WNY chapter site.

Dave Bernard
Posts: 742
Joined: Wed Mar 11, 2015 12:00 pm

Re: Mercury KH-7

Postby Dave Bernard » Sat Apr 14, 2018 9:07 pm

They are a GREAT motor made one year only.

Treeguy
Posts: 37
Joined: Tue Mar 10, 2015 7:32 pm
Location: Bemidji, MN

Re: Mercury KH-7

Postby Treeguy » Sat Apr 14, 2018 9:31 pm

Image

Image

Thank you for the replies. I think I finally figured out how to post photos properly using Dropbox; thank you David Bartlett.

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Buccaneer
Posts: 3132
Joined: Mon Mar 09, 2015 9:34 pm

Re: Mercury KH-7

Postby Buccaneer » Sat Apr 14, 2018 10:50 pm

Treeguy, I emailed you a manual for a KG-7 Mercury.
Not sure what changes were in the KH-7.
Have fun!

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20mercman
Posts: 585
Joined: Mon Mar 09, 2015 4:13 pm
Location: Kenosha Wisconsin

Re: Mercury KH-7

Postby 20mercman » Sat Apr 14, 2018 11:00 pm

The KH-7 was as Dave B said, a one year motor. It was really a transition motor from the Kg-7 to the Mk-20. The power head is very much the same as the KG-7, including the same AJ-32A carburetor. This was the first year for full gear shift, so it was very popular. They initially were built with too small water pumps, which led Mercury to recall them and install a larger pump. The modification also was to add more holes in the water inlet of the lower unit. A lot of service techs turned these into pin cushions as they drilled too many holes and weakened them. A lot of the lower units cracked around the bearing carrier nut. They also used a S11K forward bearing and different forward gear then the later Mk-20 and Mk-25 motors. Like Dave said, these are great motors, and the pinnacle of the green tank Mercury motors. I have two of them.
Arena%20015%20(87)-X2.jpg
Arena%20015%20(87)-X2.jpg (177.6 KiB) Viewed 278 times
Here is my first one at the show at Tomahawk, the second one has not been restored yet.

Steve

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Seakaye12
Posts: 394
Joined: Mon Mar 09, 2015 3:59 pm

Re: Mercury KH-7

Postby Seakaye12 » Sun Apr 15, 2018 11:54 am

20mercman wrote: I have two of them.
Arena%20015%20(87)-X2.jpg
Here is my first one at the show at Tomahawk, the second one has not been restored yet.

Steve


Steve.....you polish things to a level that is truly astonishing. Could you perhaps outline the various steps involved in making the mid-section look like that? What sorts of sanding? What sorts of equipment? I imagine that it must involve many steps of finer and yet finer sanding....followed by many more steps of polishing? Can you give a brief summary?

Thanks,,,,Chuck in Santa Barbara


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