MS462 exhaust cracked

[Donnie]

Well then. I’ve been running a bark box on this 462 since about December. It’s only 6 months old.

 

I’ve cracked the inside of the exhaust it seems and the guy at the shop reckons I’ll seize it running it with it being cracked. 
 

New exhausts the best part of 100 pound and I’d just rather not pay that if I don’t need to…

 

Just looking for a second opinion on what the fella in the shop said. Not doubting him or anything

[Donnie]

I think this might of been better just sent directly to @Crocky as I’d imagine he’d know 😂

[kram]

Odd for sheet metal to crack in that way. Exausts would not normally be a hardenable steel, and so should bend before cracking, unless its stainless?

 

You risk bits breaking off and getting inside the exhaust port, Im not sure how else it would seize.

 

 

[outinthewood]

like the husqvarna 585/592 Stihl went for max weight saving which is ok until you stick a heavy barkbox on the front and you expose a weakness. The 585 which runs a little faster than the 592 seems to suffer a few problems with cracks so I'm guessing this is a similar problem ? 

[Stubby]

6 hours ago, outinthewood said:

like the husqvarna 585/592 Stihl went for max weight saving which is ok until you stick a heavy barkbox on the front and you expose a weakness. The 585 which runs a little faster than the 592 seems to suffer a few problems with cracks so I'm guessing this is a similar problem ? 

I assumed ( wrongly it seeems ) that a bark box would be lighter than a standard exhaust seeing as there is f/all in it ?

Edited Monday at 04:55 by Stubby

[Muddy42]

I would stop using that for risk damaging the saw.  Do you not still have the original one to put back on?

[Dan Maynard]

I think you've got two issues

- the cracks let exhaust out where it's not supposed to go, that's heating bits that are not supposed to be as hot. I'm not sure that will immediately cause a seizure but it's not helping 

- now that it's cracked, the cracks are quite likely to keep growing until the whole thing falls off. Result you're out in the woods with no exhaust, major pain in the neck

 

I think you have to bite the bullet and replace.

 

Is this one of the 462s you had for sale? I was going to say your saws are looking a bit orange and white nowadays.

[handcutter]

The bark box doesn’t have a great reputation for build quality from what I have seen on other forums and from other cutters. I would just get another oem exhaust put on as the bolt holes will only ovalise and the exhaust fail 

[AHPP]

I these barkboxes and shiny side covers principally represent a triumph of marketing and a reciprocal void of sense. Saws are really bloody good as they come. If people replaced the time spent researching, idolising, buying and fitting things that make your saw louder, more expensive and probably heavier with time spent improving their sharpening, they'd have more money and more sawdust and probably fewer add-on problems (like whatever backpressure issue someone above was alluding to). Yes, I get what porting, decking, timing, tuning etc is for and if you really are a super, super duper cutter that wants even more, go for it. But I suspect about 99% of people that **************** around with these "upgrade" parts never derive as much benefit as they would do from just being sharper.