Poulan 3400,3700,3800, 4000 stroked crankshaft project. Part 2

[Dub11]

What chain is it running? And man thats fast

 

[dieselfitter]

What chain is it running? And man thats fast

Thanks. It will be faster after Adam does his work. The chain is borrowed from Adam.
Can anyone recommend a good source for square files?

 

[fossil]

On the oiler, replace both gaskets as well. That can make a big difference. The other thing to look over is the check ball that's behind the spring in the oiler body. Make sure it's there and not stuck.
Failing that, sometimes they are just worn out.

 

[fossil]

Beauty job on the saw Tim. It should be a big hit at the GTG.

 

[dieselfitter]

On the oiler, replace both gaskets as well. That can make a big difference. The other thing to look over is the check ball that's behind the spring in the oiler body. Make sure it's there and not stuck.
Failing that, sometimes they are just worn out.

Thanks Tim. I've been hoping to hear from you on this. I blew some crap out of the diaphragm driven plunger bore. It then seemed to pump well while running on the vise but still having issues. I had to remove the manual oiler lever to make room for the larger carb. I did make new gaskets. I'll take another look at it. I think I'll McGyver a button on the right side.

 

[dieselfitter]

Beauty job on the saw Tim. It should be a big hit at the GTG.

I look forward to seeing the look on your face when you run it at Geniusfest.

 

[danimal]

Thanks. It will be faster after Adam does his work. The chain is borrowed from Adam.
Can anyone recommend a good source for square files?

Save edge makes 6 sided files for square filing. On ebay too.

 

[Metals406]

Thanks. It will be faster after Adam does his work. The chain is borrowed from Adam.
Can anyone recommend a good source for square files?

http://aboloxtools.com/cutting-tool...o-4-150-07-3-0-flat-chisel-bit-file-7-qty-10/

 

[dieselfitter]

Save edge makes 6 sided files for square filing. On ebay too.

Thanks, I ordered a few from dirty dave on ebay.

http://aboloxtools.com/cutting-tool...o-4-150-07-3-0-flat-chisel-bit-file-7-qty-10/

dammit, better price that dirty dave has.

 

[Metals406]

Thanks, I ordered a few from dirty dave on ebay.

dammit, better price that dirty dave has.

There's alway next time. [emoji6]

 

[Jughead]

Really neat Thread.always enjoy projects like this.keep up the good work.

 

[dieselfitter]

The crankshaft failed. Not a tight enough fit between the shaft and the cheeks. The weld failed and the flywheel side shaft wandered out of it's bore.
I'm making new shafts(from another donor crankshaft) with a larger diameter at the press fit.

 

[67L36Driver]

I suggest a shrink fit. As in, shaft in dry ice and your 'cheek' at 400 plus oven.

Not knowing your diameter but neighborhood of .0015" interfearence.

 

[fossil]

The crankshaft failed. Not a tight enough fit between the shaft and the cheeks. The weld failed and the flywheel side shaft wandered out of it's bore.
I'm making new shafts(from another donor crankshaft) with a larger diameter at the press fit.
View attachment 56996 View attachment 56997

Sorry to hear all that work building the crank got snuffed.

Did you have a chance to look at the bearings? I was wondering how well they were holding up.

Is Genius fest 2017 a go?

 

[dieselfitter]

I suggest a shrink fit. As in, shaft in dry ice and your 'cheek' at 400 plus oven.

Not knowing your diameter but neighborhood of .0015" interfearence.

I'm thinking the same thing but instead,using liquid nitrogen.

 

[dieselfitter]

Sorry to hear all that work building the crank got snuffed.

Did you have a chance to look at the bearings? I was wondering how well they were holding up.

Is Genius fest 2017 a go?

The shaft wiped out the thrust washer and then the bearing. The PTO side bearing seems fine.
I'm planning on you running it at Geniusfest. I want to see how it does against that 5200 of yours. I like that saw.

 

[huskihl]

We'll have free reign at twisterfest this year. Our humble host and public servant @Genius will be out removing cats from trees and alligators from kiddy pools. GWS Hamilton fire dept

 

[Genius]

Sorry to hear all that work building the crank got snuffed.

Did you have a chance to look at the bearings? I was wondering how well they were holding up.

Is Genius fest 2017 a go?

I'm hoping so.

I'm getting busier and busier. We really want to do one, Lisa and the kids have a great time.

I'm just worried about getting the wood....

 

[Mastermind]

I'm hoping so.

I'm getting busier and busier. We really want to do one, Lisa and the kids have a great time.

I'm just worried about getting the wood....

Even at my age I still get wood.

 

[Barneyrb]

Even at my age I still get wood.

Well, you do walk around on peg legs