Cracked my case. Is there any hope for it?

[Mark71gtx]

I was splitting the case on my 028 Super and I somehow missed a bolt... I thought the pin was holding it so I drove it in. Then I heard a pop... It split about 3/4" back from the bolt hole in the oil residue, so fortunately it is not in the actual crankcase portion. Is there a recommended fix for this or do I need to try to find a case half? The damage does not look horrible, but I would prefer it not to leak oil everywhere... This is the only chain brake 028 I have had, so I don't have a half to rob. Any suggestions?

 

[blackop555]

Be amazed what a good Brazer can do

 

[Wagnerwerks]

Take a pic from back a little more. you're probably OK.

 

[Chris Zautner]

@srcarr52

 

[Mark71gtx]

Here is another picture. I actually have it clean in this pic. I can't believe I did this. I am just glad it was MY saw and not one that belonged to someone trusting me to fix theirs.

 

[Wagnerwerks]

I don't remember what bolts on where it's broken. Can you take one from farther back? Like of the whole side? Is the broken piece sandwiched in?

 

[Mark71gtx]

I am back in the house now. It is the lowest and farthest forward bolt in the oil tank section. I have one more pic. My biggest concern is a massive oil leak.

 

[Chris Zautner]

I would ruff it up a little bit maybe even make a trench out of the crank and fill it up with JB weld and clamp it down flush.

 

[Wagnerwerks]

I would ruff it up a little bit maybe even make a trench out of the crank and fill it up with JB weld and clamp it down flush.

Yup. Just like that. I'd grind a little v in it after the initial glue up and fill a bit more with some overlap. You should be fine because there's no real pull or movement there.

Edit. Just saw the trench part..... so exactly like that

 

[Barneyrb]

That is the mating surface for the oil tank and it will be hard to ever get it to seal off properly. My vote is for a new set of cases.

 

[Adirondackstihl]

Apply JB
Re-assemble with old gasket.
Let cure.

 

[CR888]

I'd do a bit of prep so the JB has more of itself to hold on to. I am amazed how effective JB can be in the right situations. I forgot to put a spacing intake manifold gasket on a Stihl blower & when I tightened down the intake bolts one drove straight through the cylinder and nikasil. I obiously thought cylinder was trash but replacement cylinder was near cost of a new unit so out came the sandpaper & JB weld. That blower has been used in daily service for over eight months now. I don't like JB.....I love it!

 

[Mark71gtx]

Sounds good. Thanks for the suggestions. Sounds like JB will be the ticket.

 

[srcarr52]

I can weld that.

 

[srcarr52]

That's magnesium. Fine line between melting and on fire with a map gas torch.

 

[Glock37]

Send it too sean hes the mag welder


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[TJ the Chainsaw Mechanic]

JB has saved me many a time.

 

[Mark71gtx]

If it was a 084 or something with a high resale value, I would have it welded. It is an 028. Honestly, if the JB Weld fix or something similar wouldn't fix it, it would likely have became a parts saw or be shelved until a case half found it's way to me. I do appreciate all of the helpful advice.

 

[Al Smith]

It could be welded but keep in mind the case is e-coated .That must be ground off first because a heliarc will never burn through it .Been there .

 

[Mark71gtx]

It was JB welded last night. Time will tell, but I feel good about it.