DIY Crankcase splitting tool

[Pakai Boti]

Hello.
Unfortuneatly I don't have enough money to buy myself a crankcase splitting tool, so I decided that I will make one for myself.I need just the measurements for the tool, if anybody is willing to tell me them.
Thank You really much!

 

[Sepia]

The jaws are cut from material that is approximately 5mm thick.

 

[heimannm]

I use a more "low tech" solution, these bolt to the bar mount.



For example:



Mark

 

[Jasonrkba]

Mark have you ever had a bar stud pull out or get damaged with that method?

 

[tomdcoker]

Mark have you ever had a bar stud pull out or get damaged with that method?

I can answer that question for him. I have used the numerous tool several times with no problem. Tom

 

[Jasonrkba]

I just might have to make one when I get to work tomorrow.

 

[Pakai Boti]

Thank you all, I will post the tool when I will finish

 

[Pakai Boti]

The jaws are cut from material that is approximately 5mm thick.
View attachment 692990 View attachment 692991

Are the measurements in the schematic in inches?

 

[jltrent]

I got one from farmerstec for $37 total that is the same one they sell for $60 on up. I have already used it several times, works great as I doubt you can make one much cheaper. The bar stud one could easily do major damage to a case IMO.

 

[gary courtney]

I got one from farmerstec for $37 total that is the same one they sell for $60 on up. I have already used it several times, works great as I doubt you can make one much cheaper. The bar stud one could easily do major damage to a case IMO.

had one made at machine shop. he charged me 60 . He said actual time involved should have been 150 dollars.

 

[heimannm]

There is little risk of the bar studs pulling out, there forces involved are not that great. Do a little searching for an old thread by Lakeside53, a renown Stihl tech that moved on from AS, you will see his set up that he used before he got the high dollar Stihl equipment.

Mark

 

[pioneerguy600]

The crankcases are not welded or bonded together guys. A smack from a deadblow hammer will separate most any saw I have worked over, I mostly use a puller since I have them but the cases come apart easily, not enough resistance to pull bar studs out of a metal crankcase saw.

 

[Gord404]

Was going to make my own but my local Husqvarna dealer was able bring me one in, $100, sure makes the job a lot faster and easier and I get a lot of saws through here that need bearings, crank etc, I guess it all depends on how often you need to use it whether it's worth the investment.

 

[grizz55chev]

I got one from farmerstec for $37 total that is the same one they sell for $60 on up. I have already used it several times, works great as I doubt you can make one much cheaper. The bar stud one could easily do major damage to a case IMO.

Nope, done dozens with a homemade puller, never once did ANY damage.

 

[gr8mac]

I made my own crude one just like the example above. It's not pretty but it works pretty slick!

 

[hotshot]

Are the measurements in the schematic in inches?

Yes, inches. Sorry that some folks here don’t read the OP posts...

Seen any vampires lately? Lol

 

[TheTone]

Made from Home Depot weldable steel flat bar stock, nuts, bolts, and all-thread for cheap. Labels on pics are actual HD labels. Detailed plans can be found on archive search for homemade case splitter. All dimensions are adjustable to fit almost any case.

 

[drf255]

You really don’t need any tools other than a bearing puller.

Knock pins towards flywheel side of case, get entire case hot to around 350* in oven/grill/etc, whack crank with a mallet. The case will literally fall apart into pieces.

The only issue is that the bearings tend to stay on the crank with this method, hence the puller.