3M Mintor 170 questions

[george kennie]

Why the heck can't I delete the following e-mail??????.......and why the
heck does it have all those yellow flags with the blue arrows in
them????
Confused.

"Henderson,Eric" wrote:

>  Just what I needed to know. - Very good info. Thank you.Eric.
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of mdarr00 at comcast.net
> Sent: Thursday, May 01, 2003 6:22 PM
> To: discussion at nsrca.org
> Subject: Re: 3M Mintor 170 questions
>
>     I talked with Michael Rudinsky from Boca Bearing while in Toledo.
> He did measure the bearings in my 3M 170 engine.  The frt. bearing is
> the same as the frt. bearing for the O.S. 140 RX.  Michael told me the
> rear bearing is a standard size, but they do not stock it.  Michael
> told me that he would order some and call me when they came in.  I
> have not heard from him yet.  I will call him tomorrow and let the
> discussion page know what he came up with.  In Toledo he also told me
> he would be able to offer the bearing in the ceramic version for those
> that are interested.     On the installation of the 3M 170 engine
> question.  I installed my engine on a Hyde ARI (A) mount for an O.S.
> 140 RX.  It was a direct bolt in deal.  The exhaust clears the mount
> with now problem.  The 3M engines use an o-ring manifold that the
> header attaches to, just like the O.S.  You can use an O.S., Harori,
> or 3M header on the 3M manifold, and will all clear the Hyde mount.
> The only difference between the 170 and the O.S. 140 dimensionally, is
> the 170s cylinder is slightly taller and larger in diameter, otherwise
> it is all the same i.e. exhaust location, throttle hook up, and fuel
> line hook up.  The needle valve is slightly higher on the O.S. than
> the 170, but on the 170 you can change the mounting angle of the
> needle valve if needed to line up with an existing hole in your fuse
> if swapping from a O.S. 140. Hope this answers your question, Mike
> Darr
>
>      ----- Original Message -----
>      From: Bob Kane
>      To: discussion at nsrca.org
>      Sent: Thursday, May 01, 2003 3:30 PM
>      Subject: Re: 3M Mintor 170 questions
>       I can offer an answer for #1 only . . . .. . . Mike Darr
>      had his 3M 170 at the Toledo show, the Boca person at the
>      show measured the bearings so they could offer replacements.
>      I would call Boca to see if they are available or when they
>      may be available.
>
>      GW <gw at gwair.com> wrote:
>
>           For those in the know regarding the 3M 170::  1: I
>           notice the rear bearing is a double back ball
>           bearing, I do not know what this truly means, but
>           will Boca or the US based 3M retailers  have the
>           replacement bearings available? Any other
>           substitutes? Don't want to be needing a bearing in
>           the middle of the season and be waiting for a
>           bearing from Italy! 2. Same question as above but
>           regarding rings? Do the retailers like BuyRC,
>           PlanesPlus, AeroSlave, etc, have replacements in
>           stock, or plans to?  Again, I do not want to be
>           without use of an engine waiting on a ring or
>           bearing from Italy! 3. Will the 170 be a drop in
>           replacement for the OS 140? I have heard the bolt
>           patterns are the same, but what about the position
>           of the nose ring, exhaust,etc? Completely
>           interchangeable with no refitting needed?  Many
>           Thanks GW  cc: Don Kanak, Lance at Areoslave
>
>      Bob Kane
>      getterflash at yahoo.com
>
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