Time for another Mac 797G build

[leeha]

Well i haven't done any resto's or builds in awhile. So i thought
i would do another Mcculloch 797 geardrive. For those that don't
know what this is, Mac never made this saw. The largest geardrive
Mac made was at 103cc's. Here i'm installing a 797 motor at 123cc's
into a geardrive. This one will be a bit different. It will be a Super 797G.
Useing the SDC carb set up and painted all yellow and chrome. Block is
bored .056 over with a piston from Terry Ives, Famous kart motor
builder.
I got the block back from the machine shop the other day and got it
all together. I had already had a few parts painted months ago as
well as a couple chrome parts all done.
This is what i have done over the past two days.

Lee

 

[leeha]

This is what i got done tonight. Gear case all together,
And ready for paint.


Lee

 

[rwoods]

Well i haven't done any resto's or builds in awhile. So i thought
i would do another Mcculloch 797 geardrive. For those that don't
know what this is, Mac never made this saw. The largest geardrive
Mac made was at 103cc's. Here i'm installing a 797 motor at 123cc's
into a geardrive. This one will be a bit different. It will be a Super 797G.
Useing the SDC carb set up and painted all yellow and chrome. Block is
bored .056 over with a piston from Terry Ives, Famous kart motor
builder.
I got the block back from the machine shop the other day and got it
all together. I had already had a few parts painted months ago as
well as a couple chrome parts all done.
This is what i have done over the past two days.

Lee

Lee, is that a Gravely peeking around the door? I knew you were a man of impeccable tastes. Ron

 

[bplust]

Nice!

How'd you clean it up? Ultrasonic cleaner?

Looks great!

 

[NORMZILLA44]

Good to see ya Lee, and nice project.

 

[homelitejim]

subscribing :msp_thumbsup:

 

[leeha]

Lee, is that a Gravely peeking around the door? I knew you were a man of impeccable tastes. Ron

That it is, But needs work.

Nice!

How'd you clean it up? Ultrasonic cleaner?

Looks great!

Everything cleaned in a parts washer then bead blasted.
Will be washed with solvent cleaner prior to paint.

Lee

 

[hoss]

Very nice.opcorn: If I hadn't stumbled onto that MC70G Kartsaw already built, something like this would have been my next project. Can't wait to see it finished. I see you found a good source for those Mac sized machine screws.

 

[Arrowhead]

Very cool. :msp_thumbsup:

 

[parrisw]

Nice!!

Looks like I may have a mac to work on soon!

 

[manostihl]

sweet another mac build:hmm3grin2orange::cool2:

 

[Mr. Bow Saw]

Nice work Lee.:msp_thumbup:

What gear ratio are using in this one?

 

[leeha]

Nice work Lee.:msp_thumbup:

What gear ratio are using in this one?

Thanks guys,
Cliff, this one is a 2-1 ratio. So i will be
pulling 404 chain.



Lee

 

[Overtrained]

That looks sick!:msp_thumbup:......Where do you get your chrome parts done?

 

[Brian13]

Looks like another great build! Which do think will have the edge, the Super with the SDC or the Flatback/Tilly HL set up?

 

[cpr]

I love how that case looks unpainted. Ever think about just clear-coating it?

 

[heimannm]

I will be watching with interest, as always.

I still have an 840 with a +0.030 bore and piston waiting for attention.

Keep those reports and photo's coming Lee.

Mark

 

[CM76]

Terrific work as always Lee - looking forward to more installments.

Regards,

Chris.

 

[leeha]

Did a little paint work this morning.
Man i sucks painting when the pollen is out.
But i got the whole motor, gearcase done.

Lee

 

[Alex D]

which gear drives body do you use??