Rebuild kf7

[jp53-n]

I’ve got a KE7 powerhead and TONS of cases, blocks, carburetors for KE7, KF7, KH7, KG7, Mark 20, Mark 25 engines if you need it.

[Mallett]

Well good morning all, it’s  official I now have a collection two Kf7’s. Yes I’ve talked to Dave, he’s a wealth of info. I went down to the marina got 4pints of mercury 2stroke and a tank of ethanol free gas. ($6.12) gal. Going with the 25-1 ratio on the back of the bottle.

• This reply was modified 3 years, 6 months ago by Mallett.

[Mallett]

Thanks jp53-n, good to know as I’m getting started on this adventure.

[Mallett]

Hi all, so I’ve got to the impeller it looks ok? What’s next how do I get into the gear box? Th

[dave-bernard]

take the impeller out. next make a plate with a hole for the prop shaft. put the plate on the shaft. next add spacers on top of the plate till you can catch a nut on the prop shaft. Tighten nut till the pump cartridge and gears start to move add spacers and repeat till the cartridge is even with the gear case. Should then pull out or tap the assy. out. mark the pump cartridge for installation. heat may be needed. don’t lose shims.

• This reply was modified 3 years, 5 months ago by dave-bernard.

[Tubs]

This is the way I have done it.
I make a plate to fit over the prop shaft
and two holes for screws that fit in the cartridge.
Then just tighten the nuts equally to pull it out.
Tubs.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[dave-bernard]

be careful with that method look for burrs on the threads in the pump when finished that will damage the impeller.

• This reply was modified 3 years, 5 months ago by dave-bernard.

[Tubs]

You tighten the nuts not the screws.
No damage to the cartridge.
Tubs.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[dave-bernard]

I have seen the mercury tool actually pull threads out of the pump. especially saltwater motors .

[Tubs]

You have to put screws in the cartridge
no matter what kind of puller you use
don’t you?
.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Author]

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