Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 01-02-2014, 12:24 PM
Den69RS96 Den69RS96 is offline
LawnSite Member
 
Join Date: May 2008
Location: Sturbridge, MA
Posts: 89
BR550 fan noise

This fall when I used my BR550, i noticed the fan was a bit noisy on start up. The noise is more like a whine similar to a car with a bad power steering pump. I can't really hear the noise when using the blower at full power, only at idle and its more pronounced with its cold. Once the blower is warmed up after using it for a bit, the noise is not there. Other than the fan noise it starts and runs fine. Is the crankshaft bearing on its way out or could it be fan related? I bought the unit new in 2005 and it has maybe 250 hours on it.
__________________
Sthil BR550
STihl BG55
Stihl MS361
Stihl MS250
Stihl KM110
Cub Cadet GT3235
Reply With Quote
  #2  
Old 01-02-2014, 03:02 PM
Swamp Man's Avatar
Swamp Man Swamp Man is offline
LawnSite Member
 
Join Date: Aug 2012
Location: Atlanta, GA
Posts: 7
it might be your fan clutch
Reply With Quote
  #3  
Old 01-06-2014, 02:40 PM
Jeff in AL's Avatar
Jeff in AL Jeff in AL is offline
LawnSite Senior Member
 
Join Date: Jul 2000
Location: Alabama
Posts: 352
It might be the fan clutch... WTF??? What's next a bad muffler bearing???

I have noticed that some of the BR's DO make more of a "whine" the colder they are, and as you said as it warms up the "whine" becomes less or is gone... No cause that I have seen, but my theory is that the plastic impeller is more ridgid until warm and creates the change in sound.

The easy way to tell if it is a crank bearing would be to pull the spark plug out and then pull the engine over. You should NOT hear any sound from the crank bearings. If you hear a "whine" or a "grinding" sound when pulling over by hand, then a bearing is starting to check out...

If NO noise is heard from the crank bearing, I would consider it normal and continue to run it!
__________________
Jeff in AL

How very observant of you there captain obvious.

The amount of FREE information that you receive here will be directly proportional to the amount of information that you provide!
Reply With Quote
  #4  
Old 01-07-2014, 06:26 AM
Swamp Man's Avatar
Swamp Man Swamp Man is offline
LawnSite Member
 
Join Date: Aug 2012
Location: Atlanta, GA
Posts: 7
Ahh crap I didn't mean fan clutch I meant crank bearing. That's what happens when your looking for truck parts and on LS at the same time lol.
Posted via Mobile Device
Reply With Quote
  #5  
Old 01-07-2014, 11:28 AM
tigerepairdotcom tigerepairdotcom is offline
LawnSite Member
 
Join Date: Sep 2013
Location: duluth, ga
Posts: 207
muffler bearing HEHE. This reminds me of the time I was low on halogen fluid in the headlights on my car.
__________________
It is very important for you to post your results once the problem is solved so that people will be able to reference a solution to their problem down the road. YEARS may go by and someone has the same problem PLEASE POST YOUR "IT WAS FIXED WITH x SOLUTION.
Reply With Quote
  #6  
Old 01-10-2014, 11:03 AM
Den69RS96 Den69RS96 is offline
LawnSite Member
 
Join Date: May 2008
Location: Sturbridge, MA
Posts: 89
Thanks guys. I don't hear any grinding or whinning noise cranking it over. It starts fine and runs fine. It never made that noise until this fall when the temps dropped below 40. This year I decided to use it to blow snow when we get an inch or two of the powder stuff and I noticed the noise more now than in the fall which is why I was concerned. I store my blower in my warm basement and it still made the whine noise when I started it. However it was gone once the engine was up to operating temp so maybe the cold weather has something to do with it. Its a 9 year old machine so I'll just keep using it until it dies.
__________________
Sthil BR550
STihl BG55
Stihl MS361
Stihl MS250
Stihl KM110
Cub Cadet GT3235
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 05:36 AM.

Page generated in 0.07283 seconds with 10 queries