Crank mounting tool - crank threads

[Tor R]

Thought it was time for us to have a thread for making our own crank mounting tools, I may have posted in wrong section lol. Most times we can use the same set on several models. Basic is a socket, rest is just a screw with those threads:

This is 346 crank mounting kit, flywheel side to the left (M8x1), the one in the middle is for PTO side (M10 links), part to the right is the socket we need.


Overview over different crank threads (F=flywheel side, PTO=clutch side) (links=counterclockwise threaded):
Husky:



133/234/238/242/246/42:
F: M8×1.25
PTO: 3/8" 16 pitch V (links)

240/340/40/44/444:
F: M8×1.25
PTO: 3/8" 16 pitch V (links)

50/51/55:
F: M8×1
PTO: M10×1.5 V (links)

254/257/262:
F: M8×1
PTO: M10×1.5 V (links)

346/353:
F: M8×1
PTO: M10×1 V (links)

357/359:
F: M8×1
PTO: M10×1.5 V (links)

61/266 before s/n (61) 6051313, (266SE) 6024957, (266SG) 6080640:
F: M10×1
PTO: 1/2" 13 pitch UNC V (links)

61/266/268/272:
F: M10×1
PTO: M10×1 V (links)

Info from @Stackowood
362/365/371/372:
F: M8×1
PTO: M14×1.25 V (links)

Info from @Stackowood
385/390:
F: M8×1
PTO: M14×1.25 V (links)

545/550/555/560/562:
F: M8x1
PTO: M10×1.5 V (links)

Huskies # numbers for models:
# 502 50 30 01, 185/285/1100/2100
# 502 50 30 02, 160/163/180/280/380/480
# 502 50 30 03, 40/44/140/240/340/444
# 502 50 30 04, 61/66/162/266/268/272
# 502 50 30 05, 40/44/140/240/340/444
# 502 50 30 06, 44/444
# 502 50 30 07, 133/234/238/42/242/246
# 502 50 30 08, 281/288 (394/3120/181/2101)
# 502 50 30 09, 40/45/50/51/55/240/245
# 502 50 30 10, 154/254/257/262
# 502 50 30 12, 240/245 (after s/n 9330031) 40/45 (after s/n 9101116, 9251168) 50 (after s/n 9250856)
# 502 50 30 15, 362/365/371/372
# 502 50 30 16, 357/359
# 502 50 30 17, 385/390
# 502 50 30 18, 346/351/353
# 502 50 30 19, 343R,F/345RX,FX,FXT/355
# 502 50 30 20, 570/575
# 502 50 30 23, 545/550/555/560/562

Feel free to add info for different models, and I will update the first post.

This is how those crank mounting tools are used (254):

 

[Stump Shot]

I like the way you're thinking Tor.

 

[Tor R]

I like the way you're thinking Tor.

Thanks bud
Let's see if we can build a thread where we have info of those saws we mostly have on our bench.

I should probleby had it in tool section, but oh well, they can move it later

 

[Sty57]

Thought it was time for us to have a thread for making our own crank mounting tools, I may have posted in wrong section lol. Most times we can use the same set on several models. Basic is a socket, rest is just a screw with those threads:

Husky:
133/234/238/242/246/42:
M8
3/8" links

254/257/262:
M8×1
M10 links

346/353:
M8×1
M10×1 links

357/359:
M8×1
M10 links

545/550:
M8x1
M10 links

Feel free to add info for different models, and I will update the first post.

Under here is how 346 crank mounting kit look like:

Tor, I've never seen these before.
Can you explain what they are used for.

 

[Stump Shot]

For assembly of the crankshaft into the crankcase on Husqvarna chainsaws.

 

[Sty57]

So it pulls the crank through the bearings?

 

[Stump Shot]

Or the bearings into the cases.

 

[Sty57]

How have I never seen these.......

 

[Stump Shot]

You can see part numbers and how to use them in the Husqvarna repair manuals. Can view/buy them here or anywhere Husqvarna is sold. http://www.choochooparts.com/body_g3.asp?CAT3=79120&CAT2=79000&CAT1=70000

 

[Tor R]

Tor, I've never seen these before.
Can you explain what they are used for.

Yes, we can use 254/262 crank mounting tool as example, # 502 50 30 10.
One of the side of the socket is different compared to 346 socket, it's made so you set flywheel bearing in correct distance in crankhouse, it's also made so you use the socket to knock in PTO seal to correct distance.

After we have mounted bearings in the crankcase we use crank mounting kit to drag the crank in, all preasure on the bearing is put on inner bearing.

I'll shot up some pictures later today
And I will make a list of # and whitch Huskies they fit for

Work is already done, but this is how it's used.

Here you can also see that the side of the socket has three job function

 

[Tor R]

For assembly of the crankshaft into the crankcase on Husqvarna chainsaws.

you can use those kits on most brands, Stihls etc

 

[Sty57]

Yes, we can use 254/262 crank mounting tool as example, # 502 50 30 10.
One of the side of the socket is different compared to 346 socket, it's made so you set flywheel bearing in correct distance in crankhouse, it's also made so you use the socket to knock in PTO seal to correct distance.

After we have mounted bearings in the crankcase we use crank mounting kit to drag the crank in, all preasure on the bearing is put on inner bearing.

I'll shot up some pictures later today
And I will make a list of # and whitch Huskies they fit for

Cool, thanks Tor.

Now I'm going rewirght my list to Santa.

 

[Tor R]

Cool, thanks Tor.

Now I'm going rewirght my list to Santa.

I will update the first post where I post # and to what Huskies they was ment to work on.
But in general, you can buy a few sets, and they cover 4-5 other models, ie, 254/257/262 kit can be used on 357/359/545/550 etc, same threads on the crank

 

[Stump Shot]

Good point @Tor R , I needed a reminder that you are trying to get down to the nuts and bolts of what works across the board and not just it's intended use.

 

[Tor R]

Good point @Tor R , I needed a reminder that you are trying to get down to the nuts and bolts of what works across the board and not just it's intended use.

Thanks bud.
Yes, my idea about having this thread is that if we put up whatever threads different cranks has, no mather brand, most people can get made those bolts they need, one socket and thats it and it's just to crank together crank after crank

 

[Simondo]

Im here.......spot on thread Tor

 

[Tugg]

I have a couple questions for you, what is M 10 links, what pitch is that? Also is the the threads on the connecting rod reverse threaded or just the threads on the clutch? I tried making my own using spacers and a clutch. I did not know what the thread size and pitch was, and it would just loosen the clutch.

 

[Tor R]

I have a couple questions for you, what is M 10 links, what pitch is that? Also is the the threads on the connecting rod reverse threaded or just the threads on the clutch? I tried making my own using spacers and a clutch. I did not know what the thread size and pitch was, and it would just loosen the clutch.

my english is bob bob. Links threads is what we call them when the threads is going counterclockwis ie we torque counterclockwise.
M10 is normal threads while M10x1 is fine threads.

 

[Stackowood]

I've used the Husky/Jonsered crankcase assembly tools for years, and they are nice. Some guys use a torch and a BFH, and it probably works just fine, but I like the factory method.

Found out recently that the 372 assembly kit will work fine on the 390xp.

 

[Tor R]

I've used the Husky/Jonsered crankcase assembly tools for years, and they are nice. Some guys use a torch and a BFH, and it probably works just fine, but I like the factory method.

Found out recently that the 372 assembly kit will work fine on the 390xp.

View attachment 47636

what threads dimensions do your PTO 372/390 has? (Its stamped in your tool)