canadamaxxer
Pro
Posts: 1090
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posted November 08, 2004 01:24 PM
Oh, that sucks!!!! I guess the idea of safety wiring on the filter because they come loose is a legitimate preventative tool. I had heard of that before (sort of as an urbarn legend) but never directly knew of anybody who had it happen....and now two guys?......Ouch!!!
  
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Ra12r
Zone Head
Posts: 919
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posted November 08, 2004 05:08 PM
Canada, do a thread search. I posted on this about a year earlier and several guys responded. At first I just thought I was crazy.
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All must bow to the "Ra Supremecy"...
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canadamaxxer
Pro
Posts: 1090
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posted November 08, 2004 10:12 PM
Ra: I know what you mean. I did read the old posts (but I guess forgot the specifics), and then I stopped hearing about it...so it kind of went to the back burner. Now it comes up again. Honestly though, there is no legit reason for these filters to loosen off. I have changed 1000's of filters in cars, trucks, bikes, heavy equipment, you name it......and the only ones I have ever seen come loose were not properly tightened to begin with. I am NOT saying that is the case here, I just can't think of a reason why these things back off. I even thought about the heat cycling of the rubber o ring (and the potential for shrinkage over time) and the resulting potential looseness, but spin on filters are used for virtually everything....and would result in far more frequent failures if it was just that. The only thing that makes sense to me is vibration and resulting harmonics. Regardless, the hose clamp and safety wire is a great idea.
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ZXLNT
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted November 09, 2004 12:55 AM
quote:
That is the second time JC, I guess he stroked right pass it the first time. 
Yeah I didn't want to take time to switch hands...
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Ra12r
Zone Head
Posts: 919
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posted November 09, 2004 05:45 AM
Canada, believe me I was confused and still sorta are, I actually took my fairings off and checked them. Now here is what was interesting. On the sat I went for a 150mi ride no problems, then sunday morning took the fairings off and checked the filters tightness, very tight it was. Went to the track sunday afternoon, and on the 3rd pass the filter came loose (again) at the top end of the track. That was the 3rd and final time it came loose and my third track trip. The filter always came loose on passes at the strip only for me. It was a new OEM filter. No problem all the other years, so I don't understand really what the real problem was???
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NINJA12
Needs a job
Posts: 3310
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posted November 09, 2004 08:48 AM
I've had that problem with two cars, both times it was with the Autozone
Douche bag filters. First time i actually screwed it back on only to have it come loose again in a few miles. That filter had no visible thread damage but it would strip if over tighten by hand. Next time it happend i swore off
Autozone filters.
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canadamaxxer
Pro
Posts: 1090
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posted November 09, 2004 10:30 AM
I have seen filters that have either had the wrong thread pitch and diameter for the application, or damaged threads, or no threads at all, but none of those were even installable, let alone could come loose later. It's very disturbing to try to install a filter and it slips along the threads and bottoms without having been twisted at all. Basically shit happens. The manufacturer punches out a zillion of these a day and you're bound to have a bad one once in a while, however I would also be very leary of a company's product if 2 of them failed on me.
I would love to know what in drag racing (or other extremely hard usage) is the factor that causes these filters to loosen. They are top quality products, and "shouldn't" have any problems.....yet they can come loose.
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