034 Super Build

[Mad Professor]

Couple questions.

Besides gutting the baffle what did you do with the muffler outlets/cover?

Did you use the clutch drum upgrade that takes the bigger bearing? I had one of the small bearings grenade on a 036, didn't mess the crank surface up.

Does the timing advance gain much, and does that depend on how much other work was done (squish, ports, muffler).

 

[drf256]

Couple questions.

Besides gutting the baffle what did you do with the muffler outlets/cover?

Did you use the clutch drum upgrade that takes the bigger bearing? I had one of the small bearings grenade on a 036, didn't mess the crank surface up.

Does the timing advance gain much, and does that depend on how much other work was done (squish, ports, muffler).

I opened the factory exit and pulled the screen. I didn’t do this muffler, it was done when I got saw. I believe @Basher did it. Gonna give it a whirl, then put my own 036 muffler on it to see if it pulls harder. This muffler was done quite well, but it isn’t how I generally do them.

I never had any issues with the old small size bearings. Could always upgrade, but I’ve used my own for years without an issue. It just needs to be greased from time to time. I try to add some grease/oil whenever I change the sprocket. Husky wins in this department. I’ve been wanting to drill the crank nose and side like Husky does to permit quick greasing. Never got to it. They feel better larger drum and bearing, which is just a deeper 044 drum, allows for a better array of sprocket availability.

They feel better with the timing advance. I’ve never tried to do a comparison directly. My understanding is that the timing advance adds to the responsiveness of the saw, but not necessarily increased power. I’ve never gotten the “popping” sound (generally means too much advance and detonation) on an 1125, even with 30 off the key. On a 361, I leave them stock or actually retard the timing .003.

 

[Mad Professor]

Thanks for the info.

Grease fitting for the clutch bearing would be nice but take some work when you have a bare crank handy to modify. You are lucky to have the tools to do it easily.

If you get a chance post a picture of the mufflers.

All the 036s I've had I got used so no idea if the small bearing went south from past use? I put the bigger bearing/drum kit in, and did the same when I rebuilt another 036.



The smaller bearing 036 clutch setup had 3/8 picco/lo pro rims available years ago, and I heard of people swapping those drums/bearings into a 066 for milling. Not sure what luck they had holding up?

Now the picco rims are available in the larger spline drums. Years back I had Danzco/6K Products make up some 3/8 picco rims for milling on my 066. They sell them now.

 

[Chainmale]

View attachment 449151

That's quite a difference in size between the two.

 

[Mad Professor]

That's quite a difference in size between the two.

Yes ID is the same OD is bigger, 10 X 16 X 12 vs 10 X 13 X10.

The kit has the rim washer and clip too.

The 066 is 10 X 16 X 13. The 044/046 is also 10 X 16 X 12.

Not sure about swapping the drums + bearings between the series. The bigger 036, and 044/046 bearings are the same.

 

[drf256]

Yes ID is the same OD is bigger, 10 X 16 X 12 vs 10 X 13 X10.

The kit has the rim washer and clip too.

The 066 is 10 X 16 X 13. The 044/046 is also 10 X 16 X 12.

Not sure about swapping the drums + bearings between the series. The bigger 036, and 044/046 bearings are the same.

Bearing same. The MS360 drum is actually deeper than the 1128 drum. Using an 1128 drum will cause the oiler gear to not engage unless the tang is bent upwards.

 

[Mad Professor]

Bearing same. The MS360 drum is actually deeper than the 1128 drum. Using an 1128 drum will cause the oiler gear to not engage unless the tang is bent upwards.

Good to know. I have some 1128 parts saws, but no runners.

 

[drf256]

Had one last thing to fix. Workmanship still matters to me. Saw is being sold, but I like to treat mine the same.

 

[drf256]

Was hoping to fire it up today and run it, but we got snow last night, and all the wood is buried. Stay tuned.

 

[mels]

I remember watching a video of Al running one of his MOFO 034S jobs in a chunk of hardwood bigger around than my mother-in-law with a bar a mile long and that saw would not quit

Some lucky guy in Connecticut has that saw…

 

[whitesnake]

Was hoping to fire it up today and run it, but we got snow last night, and all the wood is buried. Stay tuned.

Yeah awesome, I’m still cleaning up. Yay.

 

[MustangMike]

Great stuff Al, the 360 you did for me puts a smile on the face of anyone who runs it, fantastic power to weight, and it has compression relief! (Appreciated by us old guys!).

I kinda like Randy's thought on the intake, but then again, I've mostly just played with larger saws. IMO, the analogy to the intake on a 4 cycle applies more to the transfer ports, but I could be wrong. Also, IMO, the more air/fuel allowed into the case, the faster the flow through the transfers when the piston drops.

I know the 1970 Boss 429 Mustang has smaller intake valves than the 1969 because the 69s were sluggish at low RPMs on the street.

 

[drf256]

Pickings are scarce. Had to noodle.

 

[drf256]

Good worker. Torquey and should break in well.