MS362 toasted piston

[huskihl]

I’d definitely clean up the jug and toss a meteor or oem piston in it

 

[MAF143]

Thanks for all the advice. I'll work on that cylinder tomorrow. We just got back home and I'm needing some rack time so I can hit it hard tomorrow.

 

[Egg Shooter]

OK...
SO Kenny is now the resident EXPERT on burned up saws...
Burned pistons, etc...
Carry on...

Didn't you proclaim you never ridiculed anyone? Ths kinda stuff is why people think your a smug prick. Its one of two things, you either are one or your attempt at humor needs a tune up like you blubbering rich saw tunes do.

 

[RI Chevy]

Hahaha your to kind..

 

[Egg Shooter]

Hahaha your to kind..

Just calling it as I see it.

 

[RI Chevy]

Well. You don't know me. Kenny knows me.
And I think you were referring to the chain cutter photo. Nothing to do with what's going on here.

 

[Egg Shooter]

Well. You don't know me. Kenny knows me.
And I think you were referring to the chain cutter photo. Nothing to do with what's going on here.

Yes sir.....lol.

 

[angelo c]

Sounds like you two need to get a room.

 

[MAF143]

Thanks Kevin for pushing the cylinder cleanup issue. I did some work on it today after making some sanding mandrels. I have to run to the store to pick up some culvert that came in today so I'll pick up some red scotch-brite while I'm there.

It's cleaning up way better than I thought it would. Again, I'm the rookie at this and learning fast. It still needs some fine tuning, but it's getting there.
There is a little damage at the top of the exhaust port, but maybe that will get taken off once I get a piston and the degree wheel on it.





The pictures don't really show it well, but there was very little damage above the ports. Most of the crap was below the ports. I still need to clean it up some more, but I need to get a little better lighting in my work area so I can see a bit better.

 

[MAF143]

While I was washing the crap out of the cylinder, I was watching the water flow through the tranfer and strato ports. My pictures aren't the greatest, but it helps visualize where the ports are directing the flow. This is a stock MS362 cylinder. I found this interesting.

First two pix are the tranfer ports on the exhaust side.






Next two pix are the transfers on the intake side.





Last pic is the strato ports with the flow hugging the cylinder wall around to below the exhaust port.


These pix would be much more interesting if I was a much better photographer or if I could do a video while one of you smart guys was explaining exactly how it all flows together and works in there directing the flow.

I like using things that help me visualize how something is actually working. Timing numbers are one thing, understanding the flow is another part of it as well.

 

[RI Chevy]

Looks like it cleaned up well...

 

[full chizel]

Anyone one think variables caused it? Pics of the air filter?

 

[Lightning Performance]

@MAF143

You'll be just fine here.

Good stuff, right?...

Bearings, go learn more about bearings. No threads here devoted to them, yet. Bit-O' chatter here and there but not much condensed.

 

[RI Chevy]

Wow. Another world heard from.
Unreal.
@full chizel

 

[Stump Shot]

Thanks Kevin for pushing the cylinder cleanup issue. I did some work on it today after making some sanding mandrels. I have to run to the store to pick up some culvert that came in today so I'll pick up some red scotch-brite while I'm there.

It's cleaning up way better than I thought it would. Again, I'm the rookie at this and learning fast. It still needs some fine tuning, but it's getting there.
There is a little damage at the top of the exhaust port, but maybe that will get taken off once I get a piston and the degree wheel on it.

View attachment 302151

View attachment 302152

The pictures don't really show it well, but there was very little damage above the ports. Most of the crap was below the ports. I still need to clean it up some more, but I need to get a little better lighting in my work area so I can see a bit better.

Looking good, I would add this piece of advice...
Take and clean up the bevel on the edge of the port where you cleaned up the cylinder wall. You don't want any aluminum smear in there to scratch your new piston.

 

[Egg Shooter]

Sounds like you two need to get a room.

Na. He'd fall in love, then I'd break his heart.

 

[Egg Shooter]

Anyone one think variables caused it? Pics of the air filter?

Variables in oil quality? Or variables in air filter maintenance?

 

[Maintenance Chief]

While I was washing the crap out of the cylinder, I was watching the water flow through the tranfer and strato ports. My pictures aren't the greatest, but it helps visualize where the ports are directing the flow. This is a stock MS362 cylinder. I found this interesting.

First two pix are the tranfer ports on the exhaust side.

View attachment 302154


View attachment 302155

Next two pix are the transfers on the intake side.

View attachment 302156

View attachment 302157

Last pic is the strato ports with the flow hugging the cylinder wall around to below the exhaust port.
View attachment 302158

These pix would be much more interesting if I was a much better photographer or if I could do a video while one of you smart guys was explaining exactly how it all flows together and works in there directing the flow.

I like using things that help me visualize how something is actually working. Timing numbers are one thing, understanding the flow is another part of it as well.

Yup its cool refurbishing some of these saws and agreat learning experience. Think of the hourly rate your saving doing some of the elbow work. Nice job.

 

[Egg Shooter]

Yup its cool refurbishing some of these saws and agreat learning experience. Think of the hourly rate your saving doing some of the elbow work. Nice job.

That's a fact. Most places around me won't even touch the older stuff now anyway.

 

[Lightning Performance]

That's a fact. Most places around me won't even touch the older stuff now anyway.

No one around here could fix it if they could get the parts. Most place don't have a guy who can diagnose anything, recondition a damn thing or think beyond what the print out says to do. I know for sure ten Stihl dealers on more that will not rebuild a saw. I just told you why. The comebacks would kill them. They just replace the burnt new ones and refuse out of production models that need a major repair.

"Sorry, your saw is not fixable so please come pick it up no charge. We have new models in stock if your interested. We take trade-ins."

They sell all the parts and parts saws on Ebay now. Easier, faster and more profitable with happier customers overall. The guys who do rebuild tools taking over the dealers of old won't sell parts now to walk in types. Ebay mostly killed that around here.