Stuffed Husqvarna 353(45mm bigbore 346xp) build.

[Quzick]

Hi!

So i had time to make myself a chainsaw.
had a bunch of old Husqvarna 346/353/351 parts around!

First repainted the crankcase, with two component acrylic paint.


Then wanted to do something different to the factory's layout.
So i fitted Husqvarna 345FR/545FX crankshaftcups(part no. 537 15 85-01) on crankshaft, clutch side one needed some light modification.

Then the crankshaft is "magically" in place with new bearings.
I do prefer the nylon cage ones:
flywheel side : SKF 6202 TN9/c3
cluch side : new style bearing from 550xp/560xp partslist. part code: 525 43 42-03.


Then was time for the cylinder and piston.
The original ones were in bad shape, despite i have plenty of 351 44mm ones.
So i decided to try a Meteor cylinder piston kit. overall pretty good kit, but needed some modifications to the ports, to match the other parts(muffler, rubber intake-boot, crankcase).

 

[Quzick]

And after some work.


then, i replaced the original intakeboot to a 357xp one. part code: 503 92 87-02
and also fitted the carburettor mount also from 357xp. mount: 503 92 85-02, intakeboot inner support ring: 504 06 44-01.

And added also a bigger carburettor, from 357xp. the ZAMA C3-EL42.

and it's together.

 

[Dub11]

Hi!

So i had time to make myself a chainsaw.
had a bunch of old Husqvarna 346/353/341 parts around!

First repainted the crankcase, with two component acrylic paint.
View attachment 132253 View attachment 132254

Then wanted to something different to the factory's layout.
So i fitted Husqvarna 345FR/545FX crancshaftcups(part no. 537 15 85-01) on crankshaft, clutch side one needed some light modification.
View attachment 132255
Then the crankshaft is "magically" in place with new bearings.
I do prefer the nylon cage ones:
flywheel side : SKF 6202 TN9/c3
cluch side : new style bearing from 550xp/560xp partslist. part code: 525 43 42-03.
View attachment 132256

Then was time for the cylinder and piston.
The original ones were in bad shape, despite i have plenty of 351 44mm ones.
So i decided to try a Meteor cylinder piston kit. overall pretty good kit, but needed some modifications to the ports, to match the other parts(muffler, rubber intake-boot, crankcase).
View attachment 132260

Can you tell us more about this crank mod you did. This looks very interesting.

 

[Stump Shot]

Can you tell us more about this crank mod you did. This looks very interesting.

He already said it was magic.

 

[Quzick]

Can you tell us more about this crank mod you did. This looks very interesting.

basically its factory crankshaft, but only with crankshaft cups from Husqvarna 345fr/545fx brushcutter. originally 346xp/353 do not have these.

 

[Dub11]

basically its factory crankshaft, but only with crankshaft cups from Husqvarna 345fr/545fx brushcutter. originally 346xp/353 do not have these.

Is their anything that has to be filing or grinding done to make them fit?

 

[Dub11]

He already said it was magic.

Nah the crankcase coming together was magic silly

 

[Dub11]

A d I got a 350 that I thing would benefit from this full circle crank action.

 

[Quzick]

Is their anything that has to be filing or grinding done to make them fit?

clutchside one needs some filing/grinding to make it fit. it needs some plastic grinded off from outside center of the cup, all that to make a clearance to the mainbearing.

 

[Dub11]

clutchside one needs some filing/grinding to make it fit. it needs some plastic grinded off from outside center of the cup, all that to make a clearance to the mainbearing.

Got ya. I was getting read to make a parts order and these will be added.

 

[Quzick]

A d I got a 350 that I thing would benefit from this full circle crank action.

350 uses a different crankshaft, i think these cups should not fit on that crank,. but i might try tomorrow on one.

 

[Stump Shot]

basically its factory crankshaft, but only with crankshaft cups from Husqvarna 345fr/545fx brushcutter. originally 346xp/353 do not have these.

Like your idea here.

 

[Dub11]

350 uses a different crankshaft, i think these cups should not fit on that crank,. but i might try tomorrow on one.

That would be awesome.

 

[Quzick]

That would be awesome.

I did try on one. it fits but needs center plastic mod.- grind it away on both sides. then it should have clearance for bearings.
but i do not know how is with the crankcase, is there enough space?
and i think/fear that the 340/345/350 bearings with these cups are a bit to tight then, and may have some lubrication problems.

 

[Dub11]

I did try on one. it fits but needs center plastic mod.- grind it away on both sides. then it should have clearance for bearings.
but i do not know how is with the crankcase, is there enough space?
and i think/fear that the 340/345/350 bearings with these cups are a bit to tight then, and may have some lubrication problems.

Well only way to find out lol. And thanks again for showing us this.

 

[Dub11]

Bump! How are these saws running?

 

[Quzick]

Bump! How are these saws running?

running like ordinary, maybe a bit snappier. tuned rich right now.
my older one with oem cylinder and with this mod has not blown yet 5 years old and frequently used(30 days in year, 8h per day) to school/train beginning loggers.

 

[beaglebriar]

I can't imagine the 346 needing more RPM from the stuffers but that's definitely a cool mod and I wanna try it!! [emoji2]

 

[chipper1]

So who else has done this and what kind of results were seen.

 

[Quzick]

Had time to look inside, after ten tanks of fuel, everything seems in place, and then tossed a popup piston in.