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Mis-installed air filter

jest2dogs

jest2dogs

Just got it firing!
Joined
Nov 19, 2008
Messages
23
Recently returned from a tough 1,000 mile ride with temps ranging from 51F to 92F. Highway speeds up to 96 but more like 75-80. Scores of miles on two lane with enough hairpin turns to make one tired of hairpins. About 25 miles was done on rough, dusty gravel logging roads. Elevation changes from 0 to 4,000+ feet. It was a blast.

The Breva 750 now has just over 6,000 miles on it so I wanted to do a little maintenance. I'd never had the airfilter apart (frankly, didin't know how to get at it!) so I called the service department at my Guzzi dealer and, despite being very stressed and busy, they were kind enough to give me detailed instructions.

But, I was a bit alarmed when I opened up the front of the airbox, only to find the filter was not properly in place, perhaps for the last 6,000 miles. It was separated from the black frame that helps to mount it in the grooves in the side of the airbox. It was hanging down on the right side, allowing raw, unfiltered air to pass. The filter lobes looked clean as a whistle though the orange rubber edge was quite dirty in spots and... I had to vacuum the grit and small stones out of the bottom of the airbox. I used some silicon grease on the edges of the filter, snapped the filter to the frame and reinserted the assembly.

My question: What, if any, damage has my engine suffered from riding 6,000 miles without a proper air filter installation.
 
If you didn't ride through a sand storm, I don't think you'd find any noticable damages. Of course there's a risk of increased wear, as some dust of necessity must have passed through and ended up in the cylinders.
Of course it's not a hit driving with unfiltered air. Reminds me of carburettor funnels.
 
Jest, I wouldn't worry about it. Unflitered air would cause wear on the piston rings, but that usually isn't an issue. Mechanical trouble usually strikes in a different area, unrelated to that.

Joe
 
If your really worried you ca pull off the rubbers on the air intakes and see if there is any build up on the throttle bodies. But I don't think there is much to worry about. I didn't change my filter till 15000 and if still wasn't that bad. Unless your riding in socal where you can cut the air with a knife.
 
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