Husqvarna 350 Rebuild

[ChillyB]

I’ll reseat the bearings without registering the seal outboard to mate against the case counterbore flange. The clamping force of the base to the case should be sufficient to prevent the bearings from moving axially. And there is really no force motivating them to do so, either.

 

[a. palmer jr.]

It has to have a little play I would think to allow for expansion when warmed up..

 

[ChillyB]

Leaving 0.005-0.010 seems like a reasonable clearance. It'll be guesswork anyhow since there isnt much I can do to really do to boss the bearings around as I snug up the aluminum base.

 

[ChillyB]

Back together. Had to lift the base a couple times to futz with bearing clearances while the threebond was still sticky. Hope it sealed after that molestation. Will pressure test tomorrow.

 

[skeet88]

Does the wife know you have a saw on her dining table? Lol.

 

[ChillyB]

That's my shop building out back. Table is fair game for chainsaw work, gun cleaning, poker playing...

 

[Woodslasher]

I like your piston stop/tester port, I got lucky and found one on ebay when I was looking for a piston, that is one of the handier tools in my shop.

 

[ChillyB]

It’s just a test port, no piston stop function. Haven’t pressure tested a saw yet. I guess I’ll figure that out in a day or two. Have to find my mighty vac.

I think I can seal the intake and exhaust with my thumbs if my boy can work the pump. And my girl can spray the soap. And my wife can look for bubbles.

 

[Woodslasher]

I use pieces of duct tape or inner tube, you can bolt the muffler/carb on over them and they'll block off the ports pretty well.

 

[a. palmer jr.]

It’s just a test port, no piston stop function. Haven’t pressure tested a saw yet. I guess I’ll figure that out in a day or two. Have to find my mighty vac.

I think I can seal the intake and exhaust with my thumbs if my boy can work the pump. And my girl can spray the soap. And my wife can look for bubbles.

I generally put a rubber cork in the intake if I can find the right size..

 

[ChillyB]

With masking tape over exhaust port and a spit-wetted thumb over the intake boot, the saw held vacuum (only have an old plastic brake bleeder). So that’s pretty encouraging!

Pro-Tip: Install the pulse tube.

Next level Pro-Tip: Pull out the compression release.

 

[9050LX]

Hey. didn't forget the coil ground strap! Good job!

 

[ChillyB]

24 years ago I bought this saw in a shop north of Bellefonte, Pa.

24 years before that I was still eating baloney sammiches with ketchup for lunch, wondering what kindergarten was going to be like.

 

[ChillyB]

Hey. didn't forget the coil ground strap! Good job!

Can’t forget what you don’t take out. Same way that I don’t mix up screws. Once I pull a part or loosen a mount the screw goes back in the hole. I don’t toss the screws in a coffee can and hope I remember where they went.

 

[ChillyB]

Muffler thoughts: bought my second and last aftermarket muffler. Total junk in which I have zero confidence to seal, or stay together. I will mod my rusty old factory muffler before I install this cheap piece of Chinese garbage. The OEM muffler construction is superior in every way. I may excise the exhaust port of the Chinese junk and splice onto the OEM muffler corner.

 

[ChillyB]

Measured squish AFTER sealing everything up. It’s 0.029” now. Certainly glad I left out the gasket.

AND: don’t forget to shorten your screws a smidge when deleting your gasket.

 

[Chevboy0167]

I have 3 350's set aside for rebuilds. 2 of them are getting crank bearings and seals. I went with OEM seals and SKF bearings. I will keep this endplay problem in mind...... hopefully I'll remember to remember it! LOL

 

[redunshee]

You might be lucky for a piece of fuel line to be able to complete the near 180 degree turn in a small space without collapsing at the apex of the bend.
Might work, might not- I will admit I have never tried to do it.

Wont work/ Tried it

 

[redunshee]

It’s just a test port, no piston stop function. Haven’t pressure tested a saw yet. I guess I’ll figure that out in a day or two. Have to find my mighty vac.

I think I can seal the intake and exhaust with my thumbs if my boy can work the pump. And my girl can spray the soap. And my wife can look for bubbles.

Wont work. Use piece of rubber bike tire hose.

 

[redunshee]

One additional thought. Install a muffler bracket. Not sure if you have one or not. A must for these saws