Oklahoma,AR,MO,KS,TX GTG (Next GTG 08/27/2016 ) Fort Scott, KS

[Homelite410]

You be hauling them back to your place for processing?
Man, I wish you guys were about 200 miles closer...

Yes sir!

 

[Hedgerow]

Hedge, no rush on the grinder, I will wait until the next charity cut. You might even try out the rivet thining jig & give me some feed back on how well it works for you.

If the mystery coat is a tan duck with a hood & some black soot smudges on front, it is probably mine as well.

Never did get around to passing out the candy I brought. I left it sitting on the work bench as well. Eat up & enjoy.

Had a great time, learned some, & left with thoughts to ponder.

Bingo...
I will try a chain on it and see if there's any improvement...

 

[workshop]

Afternoon gentlemen. Been thinking how I want to do this baby Homie in a box I got from Mike. I can see a few spots to improve upon in the transfers. It appears the main choke point in the whole thing will be the reed valve assembly. I don't think I'm going to be doing any raising or lowering of ports, as I don't have a degree wheel and just don't understand that aspect of it yet. I understand blow down, though, and am contemplating putting a champher on the exhaust side of the piston crown. Just enough to match the bottom of the exhaust port. Maybe 5-10 thousandths. I'd like to put a pipe on it like Sawnami's, but have not located anything on eBay yet. Also depends on the price of that puppy. Once I find some grinding tools, I'll start in on it. Should be interesting, at the least. But more than likely just plain hilarious.

 

[Homelite410]

You be hauling them back to your place for processing?
Man, I wish you guys were about 200 miles closer...

As do we Matt!

 

[Homelite410]

Afternoon gentlemen. Been thinking how I want to do this baby Homie in a box I got from Mike. I can see a few spots to improve upon in the transfers. It appears the main choke point in the whole thing will be the reed valve assembly. I don't think I'm going to be doing any raising or lowering of ports, as I don't have a degree wheel and just don't understand that aspect of it yet. I understand blow down, though, and am contemplating putting a champher on the exhaust side of the piston crown. Just enough to match the bottom of the exhaust port. Maybe 5-10 thousandths. I'd like to put a pipe on it like Sawnami's, but have not located anything on eBay yet. Also depends on the price of that puppy. Once I find some grinding tools, I'll start in on it. Should be interesting, at the least. But more than likely just plain hilarious.

I can't wait to see the compression on that thing!

 

[workshop]

I can't wait to see the compression on that thing!

I was doing some preliminary checks with the crank\piston installed in the cylinder. I will need to make sure the spark plug is indexed correctly or the piston will hit it. The compression may end up in the diesel range. Hmmmm, might have to run this thing on alcohol. Thinking this afternoon of maybe a velocity stack to overcome the reed valve situation. Interesting. Deserves further thought. Anybody know where to get long reach grinding bits for a dremel?

 

[workshop]

Anybody know how to make an expansion chamber?

 

[Redhorse]

Finished my 4 days of work this morning, the last two days were rough, we went through a round of layoffs. Had around 50 total and 10 in my dept, luckily not any on night or weekend shifts.
I am ready to spend a couple of days playing with chainsaws and cutting some wood. Going to tear into my dads jonsered 621 replace the flywheel and see what else needs done to get it fired up. Hasn't been started in 10-15 or 20 years now. The Pawls went out and couldn't find anymore till I asked on here.


Sent from my iPhone using Tapatalk

 

[cobey]

Anybody know how to make an expansion chamber?

cherry bomb in a peice of thin walled pipe???????

 

[workshop]

Anybody know how to make an expansion chamber?

As in pipe saw pipe?

 

[workshop]

cherry bomb in a peice of thin walled pipe???????

 

[67L36Driver]

Back when I was in school at Rolla, the library had a book on building expansion chamber type exhaust for single or multiple cylinder engine.

Ask the nice girl in your IPhone 5.

 

[workshop]

Back when I was in school at Rolla, the library had a book on building expansion chamber type exhaust for single or multiple cylinder engine.

Ask the nice girl in your IPhone 5.

IPhone 4. The nice girl told me to shove it. Been reading online about expansion chambers. Think I'll go with a muffler mod instead.

 

[sawnami]

Anybody know how to make an expansion chamber?

I've got a formula that I used when I built my Water Buffalo (Suzuki GT750) It's a "little" involved. [emoji57]

Sent from my SM-N910V

 

[sawnami]

The expansion chamber section is 23 pages long. [emoji37]

Sent from my SM-N910V

 

[Hedgerow]

The expansion chamber section is 23 pages long. [emoji37]

Sent from my SM-N910V

Very involved..
Must be sized to cc, then tapered to desired rpm and torque specs...
Oh, and the saw needs to be ported with a particular exhaust height and intake duration to take advantage of the pipe...

Yeah....
I'd just go with the muffler mod...

 

[Homelite410]

Java pipe

 

[Homelite410]

Morning fellas! Looks like temps in the teens for Tuesday!! Have a good day everyone!

 

[67L36Driver]

The expansion chamber section is 23 pages long. [emoji37]

Sent from my SM-N910V

Yeah, looks familiar from what little I remember from 50 years ago. The math hurts muh head. And, that was in the days before hand held calculators.

Wrote a term paper on it. Actually just copied a lot of stuff...........................by hand. No copy, paste back then.

Can you imagine a multi cylinder engine with those sticking out. Yikes!

 

[67L36Driver]

I think Kenneth has been keeping his 'honey hole' a secret.

Wall of used saws at Bishops. Second floor of store is full of saw carcasses.