3M Engines

[s.vannostrand at kodak.com]

Dean's suggestion has been misinterpreted.  He ismaking a creative 
suggestion to flip the mount over and use it upside down.  Dean is saying 
that if you mount the engine to the bottom of the Hyde mount (turn it 180 
degrees from normal) then the Mintor header will clear the puck. 

This concerns me for several reasons: 
1. The engine is no longer on the centerline of the puck - I think this 
will accentuate translation problems. 
2. This is completely unnecessary if you already are using an OS/Hatori 
header.  The dimensions are the same. 
3. This is completely unecessary if you are building your plane and can 
mount the engine at the very ends of the rails
4. Thisis comletely unecessary if you use a Macs or Mueller header, since 
they don't have O-rings and therefore have dimensions that fit
5. This is completely unecessary if you get a custom mount from "mount 
man" below that fits the Hyde bolt pattern.

--Lance




"Dean Pappas" <d.pappas at kodeos.com>
Sent by: discussion-request at nsrca.org
04/28/2003 01:47 PM
Please respond to discussion

 
        To:     <discussion at nsrca.org>
        cc: 
        Subject:        RE: 3M Engines


Hi,
With the Hyde mount inverted, the engine mounting surface is about 1/2" 
higher than the center of the hockey-puck. The whole mount moves down the 
same amount ... so the firewall gets three new mounting holes. I have had 
no problem with both an FZ a number of two-strokes in the JEKYLL. You need 
a nose-ring, of course.
Dean

-----Original Message-----
From: wgalligan [mailto:wgalligan at cnbcom.net]
Sent: Monday, April 28, 2003 1:51 PM
To: discussion at nsrca.org
Subject: Re: 3M Engines


Why would you have to drill new hole in the firewall.   The 3M fits just 
like an O.S. 1.40 to the dimension.  If you use the oring header and 
already have an engine mounted the header coupler may hit.  This is cured 
by moving the engine out to the end of the mount beams.  If the engine 
mount is already set in the plane then a Karl Mueller header willl work. 
He makes one for us that fits great and will clear the mount.  His headers 
are T&A  <VBG> or email me off list for the fix I have and I'll send ou a 
photo.

WG

  thinking out loud. 
> 
> Would that not put the center of the engine off the center of the  > 
mount? Like maybe 3/8" off center? Does it matter?
> 
> GW
> 
> 
> 
>   ----- Original Message ----- 
>   From: Dean Pappas 
>   To: discussion at nsrca.org 
>   Sent: Monday, April 28, 2003 10:05 AM
>   Subject: RE: 3M Engines
> 
> 
>   The standard Hyde mount will accomodate the 3M or O.S. headers if it > 
is inverted. This does require drilling new holes in the firewall.
>   Regards,
>   Dean P.
>     -----Original Message-----
>     From: Kenneth Velez [mailto:kvelez at rochester.rr.com]
>     Sent: Wednesday, February 26, 2003 9:42 PM
>     To: discussion at nsrca.org
>     Subject: 3M Engines
> 
> 
>     Hello everyone,
> 
>     I have a question to those using the 3M Mintor engines. I'm trying > 
to figure out if the exhaust port bolt pattern is the same as in the OS > 
1.40 RX. I can not use the stock heather on my plane set up because it > 
hits the engine mount and I was wondering if the Mac's heather for the > 
OS will fit.
>     Thanks in advance.
> 
>     Ken V.

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