Author Topic: 3120 big bore kit (Read 4864 times)

mcbob · « **Reply #30 on:** August 23, 2013, 07:43:45 pm »

Gday Vance just keeping the toothslayers guessing that's all ................... cant tell em too much or they will end up smarter than me ..................

EHP · « **Reply #31 on:** August 24, 2013, 10:07:33 am »

Mcbob I have built more than a few of those motors for other people , not sure who ported your jug but you have to really watch the intake side on these , there is not much for the intake skirt on the piston to run on so they break off and that in most cases breaks the sleeve as well

Cut4fun . · « **Reply #32 on:** August 24, 2013, 10:23:48 am »

Ed the parts was coming from Vince Loy.

Cut4fun . · « **Reply #33 on:** August 24, 2013, 12:49:09 pm »

Ed here is info that Vince Loy stated in the feebay ad when the stuff was for sale back in Nov 2012 when I 1st posted this stuff.

Info

Very used needing re-honed. Re-chamfered all ports. Bore now is at 61.98mm needs to be 62mm
This is for a muffler saw 3120 stroker 46mm
New extra 62mm Bore D2 tool steel liner that comes with the cylinder
Head,4 Studs 1/4x20, Reed Valve, Intake Flange, Jug &, Jug spacer, 1 Liner semi finished can be bored to 66mm
for sale local

Cut4fun . · « **Reply #34 on:** August 24, 2013, 12:51:17 pm »

Cut4fun . · « **Reply #35 on:** August 24, 2013, 12:59:26 pm »

Original thread before someone started plastering it

. http://chainsawrepair.createaforum.com/husqvarna/varney-3120-racing-cylinder/msg20907/#msg20907

EHP · « **Reply #36 on:** August 24, 2013, 01:22:19 pm »

So I see a new sleeve in the picture , did it get put in ? and what width is the piston skirt on intake side compared to port width , as I can see the intake port has taken a beating in the pictures and I'm sure the intake skirt took a hell of alot more of a beating , If it had a chrome bore so it could run a tighter clearance I would be alot happier than running a sleeve cause the clearance is alot more and that leads to more intake trouble as the intake side of the piston always takes a beating

Vance in AK · « **Reply #37 on:** August 24, 2013, 03:13:02 pm »

All this has me thinking about the 3120 sitting in my garage...
Thing isI don't have a tree in the neighborhood that the Jonsered 2159 or the 670 won't take care of.... And I haven't seen a real chainsaw race since I left Oregon 25yrs ago :-(
Loves me a good timber carnival. Wish my son could be growing up with them like I did... Timber Tina's show at the state fair is as close as we come. It's kinda fun but.... Let's just say it's lacking!

mcbob · « **Reply #38 on:** August 24, 2013, 05:19:02 pm »

Well EHP looks as if you'll have to guess what this old fella is up to ...... sorry but its the secret squirrel bit coming to the surface again

McBob

Cut4fun . · « **Reply #39 on:** August 24, 2013, 05:25:55 pm »

Like I said before on Racesaws.

We will never see it compete or even run as a racesaw

. It will not matter and the real racers out there are not worried and only laughing.

Pay no attention to me as I know nothing and see nothing.

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Author Topic: 3120 big bore kit (Read 4864 times)

mcbob

Re: 3120 big bore kit

EHP

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Cut4fun .

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Cut4fun .

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Cut4fun .

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Cut4fun .

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EHP

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Vance in AK

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mcbob

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Cut4fun .

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