MillerModSaws and the PS-7910

[MillerModSaws]

Never said I was smart . But at least it would be off lol.
Did you try heating the flywheel with a heatgun and giving it a pop with a piece of wood


Sent from my phone when I should be working

No I'll wait and make bolts on Monday if I haft to.

 

[fordf150]

Socket over the crank snout and a couple taps with a hammer. Comes right off

 

[CR500]

They do this to us canadains . what really grinds my gears is when john Deere use both sets of measurement on all there tractors . drives me up the wall . but everything now a days is metric / imperial . yaaaahhhhh more tools ( more money down the drain ) .

Speaking from experience I agree....


Never can win haha
Sent from my non internal combustion device.

 

[shorthunter]

I can't d & t it cause those bolts hold the starter paws in. Lol.

Thats funny cause I called my tech line and ask the bolt size and the removal procedure is to put a thread cover on the crank and smack the end of the crank. I told them that ain't happening. Lmao.

That's how I remove all of my flywheels. Just need a good nut on the end of the crankshaft and a little sense

 

[fin460]

If its the saw that you have picked for me, use as big of a hammer you want

 

[MillerModSaws]

If its the saw that you have picked for me, use as big of a hammer you want

I got them off and playing with the timing know. Hopefully I'll have then all done by tomorrow and ready for you to play with. If ya got time.

 

[MillerModSaws]

Here's a pic of the flywheel. These with a built in key are really hard to measure and say remove .050 and you get 5°. So I'll show you how I do it. I remove from the side of the key the arrow points to so I can rotate the flywheel counter clockwise.

 

[MillerModSaws]

I remove the flywheel then just sit it back on. I put my piston stop in and rotate the flywheel ccw till it hits then I mark tue flywheel and cases. Then you can remove the piston stop and mark the degrees you want using your degree wheel and then screw the piston stop back in and screw it in till you marks line back up. File the key until it lines up with your second mark. This is 6°. Roughly 7.5 mm between marks.

 

[MillerModSaws]

Lots of ways to skin a cat on this one so don't get hung up on the little details. This one I actually was aiming for 5° but I marked the initial and filed it and then checked it and had hit 6°. Lol.

 

[awol]

What has worked well for me when setting timing on these saws, is to remove the built-in key completely using a carbide bur, and use a degree wheel on the PTO side to record the movement. Take a baseline reading at the magnet/coil before disturbing.

Here is what happens at about 35° total advance, using a 272 unlimited coil.

 

[Paragon Builder]

Here's a pic of the flywheel. These with a built in key are really hard to measure and say remove .050 and you get 5°. So I'll show you how I do it. I remove from the side of the key the arrow points to so I can rotate the flywheel counter clockwise.

I've never seen a rounded keyway like that before. Is the crank dimpled round like that too?

 

[shorthunter]

What has worked well for me when setting timing on these saws, is to remove the built-in key completely using a carbide bur, and use a degree wheel on the PTO side to record the movement. Take a baseline reading at the magnet/coil before disturbing.

Here is what happens at about 35° total advance, using a 272 unlimited coil.
View attachment 409528

She got a little hot

 

[MillerModSaws]

I've never seen a rounded keyway like that before. Is the crank dimpled round like that too?

No its just a normal key slot.

 

[blsnelling]

A rounded key like that is not uncommon with the cast in keys. BTW, I don't worry about removing just the right amount. The taper is what locks it in place. So, I grind a little more than I need, put it in place with a degree wheel, and tighten the nut down.

 

[MillerModSaws]

Ok boys got 1 more vid for ya. I've got the timing all worked out and this is mainly by feel. But i like the 5° advance. The 27° blowdown saw seemed to respond better than the 29° blowdown. They have better throttle response and seem to recover better when you bog them down. But here's the finial bid of saw 1 ready to go.

 

[MillerModSaws]

 

[Laslabjohn]

Mans thats a tough saw!!!

 

[spencerpaving]

That saw is gettin err done!

 

[Paragon Builder]

WOW! Just WOW!!

 

[lovetheoutdoors]

That saw is running dang strong!