Re: KR> Engine mount

[Jon Sanders via KRnet]

I have a VW to Kr2 engine mount if interested.
Off line reply please jsand...@gvtc.com

Jon Sanders
> On Sep 6, 2019, at 9:51 AM, Hal Dantone via KRnet  
> wrote:
> 
> I'm putting a new (to it) VW engine in a KR-1.
> What is a typical cost for an engine mount of that size?  
> I assume there are no sources of prefab mounts; are there? 
> 
> Thanks,  Hal Dantone
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Re: KR> Engine mount welding

[Mark Langford via KRnet]

Here's a pretty good article regarding 4130 steel welding:

https://www.millerwelds.com/resources/article-library/best-practices-for-tig-welding-of-4130-chrome-moly-tubing-in-general-motorsports-and-aerospace-applications

Mark Langford, Huntsville, AL
ML "at" N56ML.com
www.N56ML.com



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Re: KR> Engine mount

[CHRIS GARDNER via KRnet]

Leif,Pressure relief holes are not needed in your engine mount unless you plan 
on having it “normalized” after welding to relieve stresses.I wanted to do that 
after TIG welding but forgot to vent each tube beforehand.The temperatures used 
to normalize or stress relieve the mount would cause them to burst if not 
vented.Anyway no issues with cracks in spite of omitting that process.Your 
decision.CheersChris Gardiner


Sent from Yahoo Mail for iPad


On Monday, January 14, 2019, 2:33 PM, Leif G Alstadsæter via KRnet 
 wrote:

Hi
I just welding my new mounth. What Know many drill a hole in the tube, for 
pressure on high altitude.
I need some advice.. is this nessessary

Regard
Leif
Norway




Få Outlook for iOS
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Re: KR> Engine mount offset

[Mark Langford via KRnet]

Leif,

Most people just build the mount with no compensation for engine torque. 
 There are so many other factors that something else is likely to 
cancel it out, and if not, that's what trim tabs are used for.  You 
could always stack washers or other spacers under the appropriate mount 
corners to compensate for some really pronounced issue, but I doubt that 
you'll identify such an issue that can be traced directly back to the 
engine mount.


Mark Langford
m...@n56ml.com
http://www.n56ml.com


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Re: KR> Engine mount material used

[Mark Langford via KRnet]

Hendrik van Rooyen wrote:

> Do you use chrome molly or normal lightweight steel for your mount?

4130 steel, which is a chrome moly steel.  All the details are at
http://www.n56ml.com/corvair/mount_fit.html , including diameter and
wall thickness.

Mark Langford, Harvest, AL
ML "at" N56ML.com
www.N56ML.com



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Re: KR> Engine mount.

[pk.sm...@bigpond.net.au]

I will have my mount back from the welder soon. Will be able to give you an 
answer then (with photos). 
Paul. Brisbane Australia. 

Sent from my HTC One XL on the Telstra 4G network

- Reply message -
From: "Mike Sylvester" 
To: "KRNET" 
Subject: KR> Engine mount.
List-Post: krnet@list.krnet.org
Date: Fri, Dec 21, 2012 10:54 AM



For those of you that have built an o-200 mount, How much do you have to bend 
or bow the crossover tube to get around the alt. ? I might have to run the 
factory alt. since I have one and $500 is money that could be put on a radio or 
something else that I don't have at the moment. I have been off all week and 
have been kickin butt on the KR this week. I built the mount today and just 
need the crossover info before welding her up. Thanks.

Mike Sylvester
kr2s builder
Birmingham,AL.

Cell no.205-966-3854
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Fwd: Re: KR> engine-mount

[Larry&Sallie Flesner]

At 02:38 PM 5/11/2011, you wrote:
>I will use one UL power at 107 hp and weight only 159 
>pound+oilcooler. I just love this engine.
>I want to have any fuel in my wings, so I have a question I hope 
>someone can help me on.
>The fabric who deliver the engine will make a engine mount for me.
>The fuel tank in the front is removed and the engine is lighter,
>how far forward do I have to bring the engine to bring the right CG?
>


I saw one or two post to your question and one suggested you install 
the engine and do a W &B to determine location.  I see no point in 
building two engine mounts.  Do a complete W&B series without the 
engine, complete with fuel and pilot and passenger,  and then 
determine the engine location using paper and pencil.  Use the center 
of mass of the engine for the moment arm and don't forget the weight 
and arm of the mount, cowl, prop, spinner, battery, etc.  The front 
two or three inches of the CG range would be a good target with pilot 
and fuel if adding a passenger doesn't move the CG beyond the aft limit.

Larry Flesner

Re; KR>Engine Mount

[Allen Wiesner]

>Just a couple of questions regarding the engine mount
>for a Corvair in a KR2S.
>1. The plans in WW's book seem to be misleading.  The
>dimensions for the motor mount bolts are not clearly
>explained or I read them wrong.  The book says 10.125
>for the fore to aft distance from center bolt hole to
>center.  However, the center bolt hole distance on the
>left to right bolts is given as 10.25.  But, the
>impression given on the plans is that the sides of the
>tray are 10.25, not the center of the mounting bolts. 
>So is that correct?  Is it 10.250 from center bolt to
>center bolt or is that the inside dimension of the
>tray?  Take a quick look at the plans and let me know.
>I finished my tray today and I went 10.25 from center
>bolt to center bolt.  I hope I don't have to make
>another one.

I just checked my block:

Fore to Aft, center of hole to center of hole:  10.125"

Left to Right, center of hole to center of hole:  10.250"

Allen G. Wiesner  KR-2SS/TD S/N 1118
65 Franklin Street
Ansonia, CT  06401-1240

(203) 732-0508

flash...@usadatanet.net

Re; KR>Engine Mount

[M & C]

Allen, the mount,left to right inside to  inside is 10 3/4" the bolt holes 
left to right c to c is 10 1/4". I have an extra corvair motor mount if 
anyone is interested contact me off line or phone 1-573-579-3147. Read page 
94 of the WW manual on dim. for mount then compare that to the drawing on 
page103.

Mike Turner
Jackson Missouri
Swing the prop and light the fire, dance amoung the stars.N642MC
- Original Message - 
From: "Allen Wiesner " 
To: "KRnet" 
Sent: Wednesday, December 13, 2006 12:51 AM
Subject: Re; KR>Engine Mount


> >Just a couple of questions regarding the engine mount
>>for a Corvair in a KR2S.
>>1. The plans in WW's book seem to be misleading.  The
>>dimensions for the motor mount bolts are not clearly
>>explained or I read them wrong.  The book says 10.125
>>for the fore to aft distance from center bolt hole to
>>center.  However, the center bolt hole distance on the
>>left to right bolts is given as 10.25.  But, the
>>impression given on the plans is that the sides of the
>>tray are 10.25, not the center of the mounting bolts.
>>So is that correct?  Is it 10.250 from center bolt to
>>center bolt or is that the inside dimension of the
>>tray?  Take a quick look at the plans and let me know.
>>I finished my tray today and I went 10.25 from center
>>bolt to center bolt.  I hope I don't have to make
>>another one.
>
> I just checked my block:
>
> Fore to Aft, center of hole to center of hole:  10.125"
>
> Left to Right, center of hole to center of hole:  10.250"
>
> Allen G. Wiesner  KR-2SS/TD S/N 1118
> 65 Franklin Street
> Ansonia, CT  06401-1240
>
> (203) 732-0508
>
> flash...@usadatanet.net
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