[SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
vicenterc at comcast.net
vicenterc at comcast.net
Fri May 20 10:01:36 AKDT 2005
I had the same experience wiht my OS 140 RX and Mintor 140
Vicente
-------------- Original message --------------
> Bob,
> The 1.4 rear bearing doesn't get enough lubrication. I trashed a brand new
> stainless bearing two seasons ago in 4 flights. Felt like it had gravel in
> the bearings. Went home, took it out, and it looked like it had a whole
> season's worth of rust on it. Magnification revealed that it was actually
> burnt oil. Put in the sealed bearing and have at least 40 gallons of fuel
> through it and still running strong. Bearing feels as good as the day I put
> it in. I don't know if the lack of lube is caused by the full disk
> counterweight on the crank or if the tuned pipe has some sort of scavenging
> effect on the crankcase. Don't care anymore because it runs great and the
> bearings are lasting longer than any engine I've ever had.
>
> Verne
>
>
> ----- Original Message -----
> From:
> To:
> Sent: Friday, May 20, 2005 11:37 AM
> Subject: Re: [SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
>
>
> > Must be a LOT of differences in how those bearings are loaded between the
> > two motors. Fascinating!
> >>
> >> From: Rodney Tanner
> >> Date: 2005/05/20 Fri AM 11:33:19 EDT
> >> To: discussion at nsrca.org
> >> Subject: [SPAM] Re: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
> >>
> >> Thanks Verne,
> >> That is what I had heard.
> >>
> >> Rodney Tanner.
> >>
> >> Verne Koester wrote:
> >> Rodney,
> >> If you're putting it in an O.S. 1.4, definitely leave the seals in.
> >> You'll get 300-500 flights with the seals in. With them out, you'll be
> >> lucky to put 5 gallons through the engine before they're shot!
> >>
> >> Verne Koester
> >> ----- Original Message -----
> >> From: Rodney Tanner
> >> To: discussion at nsrca.org
> >> Sent: Thursday, May 19, 2005 10:33 PM
> >> Subject: [SPAM] Re: A Bearing Tip - Boca Bearing Newsletter
> >>
> >>
> >> Bob, So using an OS 140 EFI bearing, is it advisable to remove the seals?
> >> Rodney
> >>
> >> Bob Pastorello wrote:
> >> Since I use theirs, I get this e-newsletter. This month's tip;
> >> <> >> them. These bearings have their own grease and can help stop oil leaks.
> >> If your bearing has two shields, we recommend you remove one of them. For
> >> instructions on removing your shields take a look at this Help Section.
> >>
> >> Your Rear engine bearing should be open on both sides to allow as much
> >> fuel as possible to pass through and act as a lubricant. You may however
> >> want leave one shield on in the rear which would help to protect the rest
> >> of the engine from any foreign matter getting through. This should not be
> >> done with one seal. If you find your engine is stingy in getting fuel to
> >> the rear, you should definitely leave the bearing open.
> >>
> >> In our next issue of the Boca Bearings Tips & Advice Newsletter we will
> >> show you how to remove your bearing shields. >>
> >>
> >> Note - if you open your crankcase, using sealed bearings, and the
> >> crankshaft counterweight it dry-looking, or the lower part of the bearing
> >> isn't pooling oil, you may think about removing the seals. I do, for
> >> this reason.
> >>
> >> Bob Pastorello
> >> www.rcaerobats.net
> >> rcaerobob at cox.net
> >>
> >>
> >
> > Bob Pastorello, El Reno, OK, USA
> > rcaerobob at cox.net
> > www.rcaerobats.net
> >
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