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CAT E70b - smoke coming from flywheel housing

N

nhillin

Member
Joined
Nov 11, 2013
Messages
22
Location
SETX
Digging some stumps the other day I noticed a strong smell of burnt rubber, so I immediately shut down and grabbed the extinguisher to find smoke coming from the flywheel housing placed between the engine and the main hydraulic pump. I let it cool down completely and got less smoke but the same smell as if something rubber is melting inside. I plan to tear into it, just not knowing what to expect. I'll try to post a pic of the hole the smoke is coming from. Thanks

IMG_20140212_210953.jpg
Hole is on top dead center, the pic is rotated 90° clockwise
 
Last edited:
willie59

willie59

Administrator
Joined
Dec 21, 2008
Messages
13,474
Location
Knoxville TN
Occupation
Service Manager
Most likely the flex coupling that couples flywheel to hydraulic pump shaft. Common problem with any brand excavator.
 
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