Problem with Stihl BR 400 blower

trooper1954

Well-Known Member
Joined
May 29, 2012
Threads
28
Messages
145
Hi all,
I have a 30 year old blower that has served me well and given me no problems until now. The problem is it keeps breaking woodruff keys....I have replaced three myself, and each time the key breaks after a very short while, and the blower is a bear to pull start. I finally took it to a shop...they replaced the key and as soon as I got it home it broke> When I contacted them they told me they wouldn't work on it again!
Can someone tell me if this is more than likely a crank shaft issue, and if so, do I have to replace the crank shaft or should I start with changing the bearings first? Any help to determine the cause of this would be appreciated...with the plug removed it turns over fine on the pull cord when there's no compression. I don't want to throw it in the trash as it's in good shape and has never given me problems before. Where to start??
Thanks.
 
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