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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2681024@logan.com>
Subject: Re: [FlyRotary] Smog pump eliminator
Date: Sun, 20 Jan 2008 21:06:20 -0500
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That's interesting, John.  I have been flying with the same smog pump as my 
vacuum pump for almost 10 years.  However, the way it is oriented in my 
tractor installation - the outlet may get a bit of oil which may keep it 
lubricated at bit - I know its now suppose to need any, but after 10 years 
and still producing vacuum, something is working right.

I flew a while without the smog pump and all I had to do was to switch to a 
shorter belt and then wrap the belt around main pulley, water pulley and 
alternator pulley - oops, I just recalled you also have an compressor pump - 
is it driven off the same belt??

Ed
----- Original Message ----- 
From: "John Slade" <sladerj@sbcglobal.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, January 20, 2008 6:45 PM
Subject: [FlyRotary] Smog pump eliminator


> The title describes both what I want, and what I've become. :)
>
> I've now broken two smog pumps, both in a non-trivial manner. The first 
> one took out the belt (overhead the field, thankfully).  I fitted a 
> disconnect so the clutch was held in with a vacuum switch. The second one 
> failed (on the ground) and causes the pully to lock up even when the 
> clutch is disengaged. Not good. It's time to loose the vacuum.
>
> I need an idle gear to replace the smog pump in the belt path. I've 
> searched for eliminator brackets, but can't find one for an RX7.
> Any suggestions?
> Regards,
> John Slade
>
> --
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