MS361 flywheel key

[openspaceman]

I brought home a Stihl MS361 to look at/repair. It had lain in a shed for a couple of years and allegedly had been dropped in a river, running, and never touched since.

 

Except the flywheel is loose and the generator is missing from behind it, is this only fitted on heated handle machines?

 

Anyway the flywheel key is sheared, I've cleaned the broken bit out of the crankshaft taper but it looks like the key is cast into the flywheel. Is it fixed or a separate key? The channel looks too shallow for a woodruff key.

[GardenKit]

The generator is only fitted to heated handle models, and the flywheel is a different part to accept the generator.

 

The standard 361 uses flywheel 1135 400 1203 which retails at £71.59 plus vat. The key is cast into the aluminium and is used solely to position the flywheel for timing purposes, the flywheel is driven purely by the locking effect of the tapers. Ensure that there is absolutely no oil or grease on the tapers before torqueing up the retaining nut.

 

By chance, I have a brand new flywheel in stock. I bought it for a job which then never got done, so it just sits on the shelf. £50 would buy it, including postage.

[spudulike]

Sounds like a fair deal:thumbup:

[openspaceman]

Sounds like a fair deal:thumbup:

 

Very reasonable, nice to do business with Barry

[spudulike]

Very reasonable, nice to do business with Barry

 

He's a nice fella:thumbup:

[GardenKit]

He's a nice fella:thumbup:

Aww, shucks fellas:blushing:

 

Packed and waiting for posty in the morning Andrew:thumbup1:

[openspaceman]

The standard 361 uses flywheel 1135 400 1203 which retails at £71.59 plus vat. The key is cast into the aluminium and is used solely to position the flywheel for timing purposes, the flywheel is driven purely by the locking effect of the tapers. Ensure that there is absolutely no oil or grease on the tapers before torqueing up the retaining nut.

 

I've fitted the new flywheel but I could do with the correct torque figure?

 

Anyway it started fine and runs well on tickover. At high idle it misfires badly, not 4 stroking but a definite misfire like the spark is erratic or something in the fuel feed. So I've checked the plug, which was new looking so probably fitted when the flywheel broke. I've stripped down the carb where I was expecting to find a glob of water but saw nothing, blown it through and reassembled, will try it at work later today.

[openspaceman]

 

At high idle it misfires badly, not 4 stroking but a definite misfire like the spark is erratic or something in the fuel feed. So I've checked the plug, which was new looking so probably fitted when the flywheel broke. I've stripped down the carb where I was expecting to find a glob of water but saw nothing, blown it through and reassembled, will try it at work later today.

 

I must have shifted something in the carb as it ran fine, I cut some elm logs with the only bar and chain I could find, definitely front heavy with a 25" 3/8 chain.

 

With a clean air filter and warm it was pulling 14,400 rpm on high idle so I slowed it down to 13,500.

 

Now I just need a new bar and chain and was thinking of a sugihara laminated 18" with oregon full chisel cutters.