New timing belt edge chewed

[fordfisherman]

Changed the belt, tensioner and pulleys on my BF250. After 60 hours, noticed some belt dust and the top outside edge of the belt has a groove worn in it. Can’t figure out what it’s rubbing against? Any ideas?

 

[Fun Times]

Were the pulleys OEM from Honda outboard or possibly aftermarket parts?
Possibly defective parts made slightly out of specifications or excessive paint chips rubbing somewhere...Maybe?
Do you still have the original parts? What was the reason for the main change out?

 

[123jayyyy]

How did you set the belt tension, there is a specific procedure.

 

[fordfisherman]

I followed the procedure in the Honda manual. Only thing I can figure is that the belt is rubbing on one of the plastic covers? Or maybe I set the belt too high on the crank and cam pulleys before setting the tension? Got a new belt coming- will try again.

 

[fordfisherman]

OEM Honda parts. Replaced per 1500 hr service schedule.

 

[jgmo]

Hi,

If the damage is on the belt's edge, I would look closely at the belt retainer flanges on both the tensioner pulley (item 7) and the idler wheel (item 12) along with the crank pulley (3) for any burr or nick that could contact the belt.

https://www.boats.net/catalog/honda/outboard/2007-and-later/250hp/bf250a-la-vin-bbjj-1000001-to-bbjj-1099999/timing-belt

Maybe the cover has a high spot somewhere?

Interested in what you find in round 2 so please update when you knock it out!

 

[fordfisherman]

Replaced the belt. All the pulleys and tensioner were smooth. Reset the tension using the Honda manual procedure. All good so far. Not sure what happened.