Melted brake parts

[TheHungrySquirrel]

I grabbed a bargain 372 a while back off eBay but hadn't used it until the other day when the brake decided to stop working.

 

When I bought it the guy told me it had a big bore kit fitted and was around 90cc??

 

The plastic block and springs have melted and I'm wondering if it's due to the power increase?

It's in getting fixed now but hoping that's not the case.

[TGB]

The springs have melted! What's the saw been used for... a doorstop on a kiln?

[adw]

What plastic block??

[Stubby]

What plastic block??

 

Yea . I was wondering that . Also have to bloody hot to melt the springs . Not a Chinese copy jobbie is it ?

[TGB]

What plastic block??

 

 

 

Yea . I was wondering that . Also have to bloody hot to melt the springs . Not a Chinese copy jobbie is it ?

 

 

I was wondering something similar.

[spudulike]

Plastic block - is that the cylinder block????

[Mark_Skyland]

I'm guessing he means the plastic block that is part of the chain brake mechanism, the knuckle joint bit, it has melted into the brake band spring. If so it's usually down to the saw running higher than idle with the chain brake on.

[adw]

Ah so we think its the knee link joint that has melted, if so the only way to create enough heat is as Skyland says, high rpm with the brake on, or miss use of the brake.

[TheHungrySquirrel]

Sorry to confuse.

 

As skyland say it's the small block melting onto the spring. Hoping once it's back it should be a good saw.