Huztl MS660

[tbohn]

Plans...what plans. I need this saw about as much as I need a hole in my foot. I do like to tinker with saw though. Most saws I tinker with are dirty, cheap, and don't work. I have property up in Northern MN. Fortunately for me, we had a big straight line wind storm in July and I have about two dozen 20 inch Dia Aspens and Firs waiting for me. Most of the Aspens are snapped off about 15 feet up, still connected.

 

[tbohn]

Both my 56mm and 54mm cylinders look good. The 56mm has nice smooth edges on the ports and the ports look symmetrical. It does have a small pit in the cylinder wall between one of the transfer port's inlet and outlet. It is maybe 1/2 mm in size. I don't think I am going to worry about it. The 54mm cylinder doesn't have any pitting but the transfer port edges do have some casting ridges that I probably will smooth out.

I'm going to build it with the 56mm kit. I slipped the piston into the cylinder and with the top of the piston fully up against top of the cylinder, I have about 20 mils of freeport gap under the piston skirt in the exhaust port. I figure if I get over 20 mils of squish I should be golden!

 

[tbohn]

Both my 56mm and 54mm cylinders look good. The 56mm has nice smooth edges on the ports and the ports look symmetrical. It does have a small pit in the cylinder wall between one of the transfer port's inlet and outlet. It is maybe 1/2 mm in size. I don't think I am going to worry about it. The 54mm cylinder doesn't have any pitting but the transfer port edges do have some casting ridges that I probably will smooth out.

I'm going to build it with the 56mm kit. I slipped the piston into the cylinder and with the top of the piston fully up against top of the cylinder, I have about 20 mils of freeport gap under the piston skirt in the exhaust port. I figure if I get over 20 mils of squish I should be golden!

Here is a photo of the pit in the cylinder wall on the 56mmView attachment 528432View attachment 528432

 

[tbohn]

Both my 56mm and 54mm cylinders look good. The 56mm has nice smooth edges on the ports and the ports look symmetrical. It does have a small pit in the cylinder wall between one of the transfer port's inlet and outlet. It is maybe 1/2 mm in size. I don't think I am going to worry about it. The 54mm cylinder doesn't have any pitting but the transfer port edges do have some casting ridges that I probably will smooth out.

I'm going to build it with the 56mm kit. I slipped the piston into the cylinder and with the top of the piston fully up against top of the cylinder, I have about 20 mils of freeport gap under the piston skirt in the exhaust port. I figure if I get over 20 mils of squish I should be golden!

Here is the small pit in the cylinder of the 56mm.

 

[davhul]

Ok. My phone hasn't got the memory for video. But I just got back from the soccer game and seen my kit at the door. So I'm starting NOW.im going to build and post it. I'll atleast do the case tonight. It's 10:00 now. No special tools. Just how I done it on that 026 when I was 17. I'm not saying do it like this. But it is a $250 saw. Not a $1300 saw.
When I opened the box the packaging looked good. Opened everything up. The only thing I see looks sub par is the case gasket. So I painted a very fine line of dirko with the gasket. Im heating with a heat gun but the bearing cage is not as tuff as a oem. It will blister easy so be careful.



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[davhul]

I did pop the seals out. I'm not using them. They looked like good quality but it adds unnecessary difficulty.


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[davhul]

Got he case together. It just slid right together with a back and forth rocking motion. Oh yeah. I did freeze the crank in its bag. . I didn't have to pull it together with the bolts. But if you have to you can.


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[davhul]

My crank was sitting .017 to the right. I came up I needed .026 on both sides of the crank to be straight.


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[blsnelling]

It just slid right together with a back and forth rocking motion. Oh yeah. I did freeze the crank in its bag. I didn't have to pull it together with the bolts.

That's a little disconcerting.

 

[davhul]

Got OE seals in. Used a punch and went around and around the edge.


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[davhul]

That's a little disconcerting.

The bearings aren't lose in the case.


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[davhul]

I'm done For today. The chamfering on the cylinder looks like a kid with a pick axe did it. So got to clean that up tomorrow.


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[davhul]

There's a 1/8 shear drop to the transfers. I just had to clean. It really needs a light port and clean up
job.
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[trboxman]

That's a little disconcerting.

With heat and freeze you still find that disconcerting?

 

[davhul]

The crank was -3. Had it in my deep freezer


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[trboxman]

The crank was -3. Had it in my deep freezer


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I don't find it disconcerting, I've done thermal fitting of bearings several times on other items with similar results.

 

[jackjcc]

Just couldn't put it down eh?


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[davhul]

Here is the small pit in the cylinder of the 56mm.

That Looks like a crack.


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[MustangMike]

Got he case together. It just slid right together with a back and forth rocking motion. Oh yeah. I did freeze the crank in its bag. View attachment 528474. I didn't have to pull it together with the bolts. But if you have to you can.


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Now wait just a dang second there, your using a Classic Mustang as a parts bench for a $250 saw???

 

[tbohn]

That Looks like a crack.


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It's a casting blemish. Both cylinders had this in both transfers.