exploding husky

[OTG BOSTON]

I got a call from my foreman yesterday, he said that his Husky 372 had just exploded. I was right around the corner and when I got there the saw was still smoking and it had blown the inside of the sparkplug out. Anybody know what could have caused this??

 

[Treeinnovator]

I got a call from my foreman yesterday, he said that his Husky 372 had just exploded. I was right around the corner and when I got there the saw was still smoking and it had blown the inside of the sparkplug out. Anybody know what could have caused this??

wow, that's scary. i've never had that happen to any of my Craftsmans.

 

[OTG BOSTON]

Not the answer I was looking for.

 

[Sprig]

Yikes! No one burned or hurt, that is good. A bit more detail would be great, that is bizarre, but from the sounds of it it might be that guessed it was a hot day (1). Could the saw have been hard to start and possibly flooded a bit, enough for some extra fuel to dribble into the crank case or muffler and vaporise? (2) Was the person trying to start it after it had already been running for a while? (3) What else is damaged? (4) I have never heard of this sort of thing before except when chunks of 'something' have broken off and gotten into a cylinder and I think that Husky might be interested in a bit of forensic study, you may want to consider contacting them with the details as they might have some solid information on this from the past and/or want to look into it. Unfortunately your question seems to raise many more. Am very curious.

opcorn:

Serge

 

[BlueRidgeMark]

Was it revving high at the time? Idling? What was going on?

 

[matty f]

Dont answer your question but the only husky i got now is an old 288xp great saw apart from you have to keep an eye on all the bolts from coming lose.
I would not buy another husky.
I went through three of the old 262 xp's great saws cut faster than anything in there class it would evan out cut the 3120 but they only seem to only last a year before they went bang...blew a 3120 and had a couple of old 266's ..there effort at a climbing saw was the last straw people say the new model is better but mine went out the tree on to the hard concrete i had that much with it-hence why i only buy stihl now, they are not as fast but atleast you get your moneys worth.
cheers mat

 

[OTG BOSTON]

He was dropping a butt log, after having used it to lop off two arms while in the bucket. I theorized that when he turned the saw on its side there could have been gas in the air cleaner cover. The only other damage was to the sparkplug wire and some melting to the air cleaner cover.

 

[04ultra]

He was dropping a butt log, after having used it to lop off two arms while in the bucket. I theorized that when he turned the saw on its side there could have been gas in the air cleaner cover. The only other damage was to the sparkplug wire and some melting to the air cleaner cover.

Ouch that sounds expensive..

 

[OTG BOSTON]

[ i only buy stihl now, they are not as fast but atleast you get your moneys worth.
cheers mat[/QUOTE]


We are in the process of switching over

 

[1CallLandscape]

got some pics of this???? sounds to me like it loaded up on fuel ( instantly)while on high revs causing a larger than normal explosion inside the cylinder. and thae spark plug being the weakest link gave way....thank god nobody was hurt or killed ( or burnt) by an exploding plug. I personally have had a rod come through the bottom of the cylinder on my old p.o.s stihl 036.

mike

 

[l2edneck]

never heard of that i would definitly get in touch with them n find out if its maybe a common problem could have been a spark plug defect like small threads maybe or it was loose i have seen them come out from bein loose do you change them often?

 

[Dave]

It used to be S.O.P. for Champion plugs to self-destruct, I've seen 3 or 4 myself. There was a problem with the sealing material and it would fail over time. What brand of plug did this happen with?

 

[OTG BOSTON]

Yup, it was a Champion spark plug, probably hasn't been changed in over a year.

 

[sawinredneck]

N. G. K.


Know it, remeber it, live by it!!!! Blew the center right out of the plug and left the metal insert in the saw, right?
Andy

 

[jerry1818]

Seen it happen on car engines too.

 

[smokechase II]

spark plug

How bad is the damage to the saw?

If it is confined to the spark plug threads, could have been a loose or miss threaded plug.

Sounds more serious, but thought worth mentioning.

If so, helicoil time.

 

[RedlineIt]

Blew the center right out of the plug and left the metal insert in the saw, right?

Seemed to affect plugs mostly that get wet/dry cycles put on them repeatedly, as in wet from rain then drying out from running up to temp. Had a V-4, 2-stroke motorcycle that blew the centre of the plug out, it was on one of the pair of cylinders that faced down and forward and got alot of road slime chucked on it from the front tire in wet weather.

When I changed all four plugs (and the fried spark plug wire) the other front plug showed some cracking in the ceramic, but the two on the pair of cylinders that pointed up and lived a nice clean life under the gas tank and shrouds were solid. No mystery, tough environment=reduced service life.

Look at where those sparkplugs are pointing on most saws everyone! In many cases, right back at you!

Change them out regularly.


RedlineIt

 

[Freakingstang]

I seriously don't think that it was fuel related....What happens when you richen in the high speed jet or the low speed jet? The RPM will drop significantly. IF it was a seriously lean condition, then it would have reved to to moon for a spilt second before either running out of fuel or seizing up. If there was too much fuel, it would have flooded, not exploded.

Spark plug could be an issue. Any posibilities that something was added to the fuel? I've seen octane booster explode plugs before.

-Steve

 

[Nicholas]

Should have been running those good Bosch spark plugs that Baileys sells!

-Nick

 

[Thirdpete]

wow, that's scary. i've never had that happen to any of my Craftsmans.

funniest thing i've read here in awhile.