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What's on your bench today?


spudulike

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Got a temperamental 020t and just picked up a running (but lean seized, ally transfer) 200t.

 

The 200t is getting a new piston and the pot will clean up easy, im thinking of swapping some bits over from the 020 to the 200, namely the carb and im thinking about the exhaust too as its looks less restricted than the 200 any truth in this?

 

Will oven cleaner get the ally transfer of the pot? i think its muriatic acid i need and i think its found in most overn cleaners? anyone got a better source for acid?

 

Thanks

Ric

 

 

I think your chemistry is all a kilter - oven cleaner may contain sodium hydroxide that is a powerful alkali, Muriatic acid is the old name for Hydrochloric Acid and is what I generally use. Aluminium will disolve with both!

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Had a Stihl 084 come in today, not running and sounded pretty strange when pulled over.

 

Looked down the plug hole and Mmmm, looked seized. Took the muffler off and the piston was fried and it was then I looked at the base of the cylinder and noticed a crack in it - gave it a poke and a great lump of cylinder became dislodged.

 

It looks like the front cylinder bolts had come out, this caused an air leak, the saw seized and during this happening, the cylinder moved and the piston slapped a great chunk of cylinder out the front of the engine.

 

Showed the wife and her expert opinion is "it is buggered"....I tend to agree:lol:

 

And yes, that is the piston through the hole and yes...you can also see the con rod through it also!

 

The cylinders for these are bloody expensive, you cant get Chinese ones and apart from that, I can't be sure that the crank and con rod will be straight after this happening so looks like scrap to me:thumbdown: Shame as I hate to chuck in the towel but spending £500 on a saw this old and finding the bottom end is bad isn't worth it!

59766451d98a3_084cylinder.jpg.bf34620195ab551dec18dc8aacd0dcaf.jpg

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Pesky husky hedge cutter on bench tonight. Had a look at flywheel and I'm not sure it's the right one. Had no markings on it.

 

No amount of fiddling would get it to pull over right. And due to this I can't tune it. It's a bit strange aswell. When it does get going if I tune it to running perfect wen I stop and then start it again the tuning is way off. Oh well back to square one. Time for a really good clean out and full check. Well look into the flywheel aswell.

 

Got an ms250 in aswell. Was running then died and now won't restart. One for tommorow as I'm home and I'm knackerd.

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Had a Stihl 084 come in today, not running and sounded pretty strange when pulled over.

 

Looked down the plug hole and Mmmm, looked seized. Took the muffler off and the piston was fried and it was then I looked at the base of the cylinder and noticed a crack in it - gave it a poke and a great lump of cylinder became dislodged.

 

It looks like the front cylinder bolts had come out, this caused an air leak, the saw seized and during this happening, the cylinder moved and the piston slapped a great chunk of cylinder out the front of the engine.

 

Showed the wife and her expert opinion is "it is buggered"....I tend to agree:lol:

 

And yes, that is the piston through the hole and yes...you can also see the con rod through it also!

 

The cylinders for these are bloody expensive, you cant get Chinese ones and apart from that, I can't be sure that the crank and con rod will be straight after this happening so looks like scrap to me:thumbdown: Shame as I hate to chuck in the towel but spending £500 on a saw this old and finding the bottom end is bad isn't worth it!

 

 

Get out the JB weld, sure you can do it :001_tt2:

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Pesky husky hedge cutter on bench tonight. Had a look at flywheel and I'm not sure it's the right one. Had no markings on it.

 

No amount of fiddling would get it to pull over right. And due to this I can't tune it. It's a bit strange aswell. When it does get going if I tune it to running perfect wen I stop and then start it again the tuning is way off. Oh well back to square one. Time for a really good clean out and full check. Well look into the flywheel aswell.

 

Got an ms250 in aswell. Was running then died and now won't restart. One for tommorow as I'm home and I'm knackerd.

Hmmm??? Is the flywheel tight on the crank, and is the key intact? I had a Shibaura brushcutter with very similar symptons. The flywheel was moving, sometimes it was in the right place and it started and ran fine, the next time it was not. It was a bit weird.

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Hmmm??? Is the flywheel tight on the crank, and is the key intact? I had a Shibaura brushcutter with very similar symptons. The flywheel was moving, sometimes it was in the right place and it started and ran fine, the next time it was not. It was a bit weird.

 

Yes the flywheel is tight. It doesn't have a key but rather the flywheel is machined with a bit in it that would be the key. Why I was thinking that it isn't the right flywheel but looking at parts list one isn't listed so not sure if its suppose to have one.

 

But the slot in the crank and the bit in flywheel look good an dont worn. The flywheel doesn't move on the crank either.

 

This is the second one I have heard of as someone else I know I was talking to had one with the exact same problem.

 

I did think about packing the flywheel up a bit to bring it up closer to the pull start assembly. But this wouldn't work. More likely to destroy the seals under it. Looked at the pull start and all is good with that.

 

Will look into a whole new flywheel and starter. If the customer wants this route. But he is a stihl man so probably get rid of it. :thumbup:

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