Today's Message Index:
----------------------
1. 05:52 AM - Re: Oil leak (bluesidedown)
2. 08:56 AM - Re: Re: Oil leak (JFLEISC@aol.com)
3. 11:36 AM - Re: Re: rivets working (bert murillo)
4. 11:56 AM - Radio for sale (John L. Danielson)
5. 02:48 PM - Re: Radio for sale (John L. Danielson)
Message 1
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I agree everything has its down side. Just like running the breather tube through
a oil separator then all the way back through the plane creating restriction.
I don't agree that positive crankcase pressure won't help the overall performance
if done right and in lieu of a restricted system. The help with the
VW system may not be as much considering the volume of the crankcase as compared
to the piston size or the tighter tolerances; I can't really say, I wasn't
there. But when we used to run buggys down at Flat River we all had breathers
run into the exhaust otherwise you would have oil all over and I won't go into
all the other positives since that was 20 years ago and I haven't built a VW
engine since. So my knowledge of specifics are limited. I will tell you that you
could not run as high of compression and rpm as we were without one. On an
auto a simple test of the PVC was to pinch the line and there was usually a 50
rpm drop. Now it is a little different but the concept is the same.
Another thing to consider is that the oil will be less contaminated and water vapor is being positively expelled. There are a few kits to do so and the Moroso kit has a check valve for those worried about a backfire. http://www.streetperformance.com/part/moroso/positive-crankcase-ventilation/391844-25900.html
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 7413#207413
Message 2
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In a message dated 10/5/2008 8:53:27 A.M. Eastern Daylight Time,
mbick@carolina.rr.com writes:
I don't agree that positive crankcase pressure won't help the overall
performance if done right and in lieu of a restricted system.
Show me "unaltered" dynamometer numbers, then I'll believe. Otherwise;
fantasy.
Jim
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(http://local.mapquest.com/?ncid=emlcntnew00000001)
Message 3
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| Subject: | Re: RE: rivets working |
Just follow the techincal manuals, used in Aircraft Mfg. if I recall the
lenght of- the portion of the rivet shown, after the pieces are held toge
ther, should
be 1-1/2 the diameter of the rivet...
-
Almost any book shows- how to figure this out etc... even Aircraft Spruce
if
I recall has at the end of the book, tables for all this, and more,..
-
bert
-
rv6a
--- On Fri, 10/3/08, Charles Kuss <chaskuss@yahoo.com> wrote:
From: Charles Kuss <chaskuss@yahoo.com>
Subject: Re: RV-List: RE: rivets working
I'll second Rick's opinion that Vans often (almost always on the 8A)
calls out rivets that are 1/2 size to short in length.
Charlie Kuss
--- On Fri, 10/3/08, Rick Galati <rick6a@yahoo.com> wrote:
> From: Rick Galati <rick6a@yahoo.com>
> Subject: RV-List: RE: rivets working
> To: rv-list@matronics.com
> Date: Friday, October 3, 2008, 3:55 PM
>snipped
> -
> It is one thing to describe smoking or working rivets
> occurring here or there, but it is quite another for such
> rivets to be dispassionately examined by someone who really
> knows what to look for. Many theories have been posted on
> this thread and rest assured my pet theory is no exception.
> By and large, I believe smoking rivets are for the most part
> caused by improper rivet use or builder error or a
> combination of both. A common rivet gage relied upon and
> interpreted correctly by the builder would do more to
> prevent-smoking rivets than any other single action.
> -
> Too often, I have observed the grip length call-out of many
> rivet patterns located on skins- seem to be marginal at
> best and tend towards being a bit too short. I observed
> early on that often times shooting such rivets could cause
> the shop head to be almost swallowed by its dimpled hole
> already enlarged by the dimpling process. If a builder under
> sets such rivets, the-builder is just asking for the under
> swelled rivets to work loose over time and the same thing
> goes if the rivet is slightly overshot. What little is left
> of an over shot-rivet shop head has precious little dimpled
> material to grip onto. To help prevent both scenarios, I
> routinely install slightly longer half-size rivets even
> though the plans may well call out a shorter length for a
> particular stack-up of materials. My 2000 vintage RV-6A
> plans-had even shorter -3 length rivet lengths occasionally
> called out yet I could never accept that. -I refused to
> install-AD3-3 length rivets
> anywhere period.
> -
>
[URL=http://imageshack.us][IMG]http://img396.imageshack.us/img396/2489/fw
f008editmt3.jpg[/IMG][/URL]
> -
> Using a-rivet gage supported my suspicions. Relying on it
> instead of my eyeballs, my experience has been it that is
> much more difficult to correctly set an almost too short AD3
> rivet than it is to set one that is just slightly longer.-
> I routinely install slightly longer rivets even though the
> plans may well call out shorter lengths for a particular
> stack-up of materials.-Example: The plans do not account
> for primer thickness.
> -
> One thing I learned on the shop floor at McDonnell-Douglas
> as I pounded away on F-4=A2s, F15=A2s, and F18=A2s was that
> blue-print fastener length call-outs are often in error and
> it is always up to the installer to verify the correct grip
> length is used in any given situation. Later on,
> I-discovered that same familiar truth applies to RV
> construction practices as well.
> -
> Rick Galati
> RV-6A "Darla"
> RV-8 N308R
=0A=0A=0A
Message 4
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I have for sale a Microair Avionics Pty. Ltd
Model #760 VHF AM Transceiver.
I do not have the wiring harness for this unit. One can easily be made
up
>From parts that are available at Radio Shack.
The manual and wiring diagram can be found at Microair's web site.
http://www.microair.com.au/index.aspx?page=186
<http://www.microair.com.au/index.aspx?page=186&productID=25>
&productID=25
I am asking $550 for this radio. I purchased it used 2 years ago and
never used the unit.
It is used but in great condition.
If you have any questions please e-mail Jdaniel343@bresnan.net.
I will be putting this on E-bay within 3 days if no one responds.
Shipping will be $15.00.
Thanks
Message 5
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Radio has been sold.
Thanks
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of John L.
Danielson
Sent: Sunday, October 05, 2008 12:56 PM
Subject: RV-List: Radio for sale
I have for sale a Microair Avionics Pty. Ltd
Model #760 VHF AM Transceiver.
I do not have the wiring harness for this unit. One can easily be made
up
>From parts that are available at Radio Shack.
The manual and wiring diagram can be found at Microair's web site.
http://www.microair.com.au/index.aspx?page=186
<http://www.microair.com.au/index.aspx?page=186&productID=25>
&productID=25
I am asking $550 for this radio. I purchased it used 2 years ago and
never used the unit.
It is used but in great condition.
If you have any questions please e-mail Jdaniel343@bresnan.net.
I will be putting this on E-bay within 3 days if no one responds.
Shipping will be $15.00.
Thanks
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