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[rebel-builders] Vacuum pump direction

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rickhm

[rebel-builders] Vacuum pump direction

Post by rickhm » Sun Feb 19, 2012 10:56 am

In the dark recesses of my brain I recall that you can get them in either form. I also recall the part numbers are xxx CW and xxx CCW for clockwise and counterclockwise. I also recall that some engines use one version and others another (lyc vs cont). Keep in mind this is from the dark recesses and it could be a bad dream!

Rick Muller
SR70

-------------- Original message --------------
From: Mike Kimball <mkimball@gci.net>
When facing the drive gear that drives a vacuum pump it turns counter
clockwise. Looked at another way, if I was holding the vacuum pump in my
hand with the splined shaft facing me it would be turning clockwise. Does
this mean that when ordering a vacuum pump I should order counter clockwise
or clockwise? I don't know what the convention is.

Mike
044SR




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Al Paxhia

[rebel-builders] Vacuum pump direction

Post by Al Paxhia » Sun Feb 19, 2012 10:56 am

Rick,
My experience of one Lycoming IO540 engine is, the direction of the
accessory gear for the vacuum pump is the direction for the pump. CCW on the
accessory gear is CCW in the part number on the pump.
Al
----- Original Message -----
From: <rickhm@comcast.net>
To: <rebel-builders@dcsol.com>
Sent: Saturday, June 17, 2006 5:49 PM
Subject: Re: [rebel-builders] Vacuum pump direction

In the dark recesses of my brain I recall that you can get them in either
form. I also recall the part numbers are xxx CW and xxx CCW for clockwise
and counterclockwise. I also recall that some engines use one version and
others another (lyc vs cont). Keep in mind this is from the dark recesses
and it could be a bad dream!

Rick Muller
SR70

-------------- Original message --------------
From: Mike Kimball <mkimball@gci.net>
When facing the drive gear that drives a vacuum pump it turns counter
clockwise. Looked at another way, if I was holding the vacuum pump in my
hand with the splined shaft facing me it would be turning clockwise. Does
this mean that when ordering a vacuum pump I should order counter
clockwise
or clockwise? I don't know what the convention is.

Mike
044SR




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-----------------------------------------------------------------



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Mike Kimball

[rebel-builders] Vacuum pump direction

Post by Mike Kimball » Sun Feb 19, 2012 10:56 am

The direction of the accessory gear on my engine is CCW when facing it. So
a CCW pump is what I need. Thanks!

Mike

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Al
Paxhia
Sent: Saturday, June 17, 2006 5:14 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Vacuum pump direction

Rick,
My experience of one Lycoming IO540 engine is, the direction of the
accessory gear for the vacuum pump is the direction for the pump. CCW on the

accessory gear is CCW in the part number on the pump.
Al
----- Original Message -----
From: <rickhm@comcast.net>
To: <rebel-builders@dcsol.com>
Sent: Saturday, June 17, 2006 5:49 PM
Subject: Re: [rebel-builders] Vacuum pump direction

In the dark recesses of my brain I recall that you can get them in either
form. I also recall the part numbers are xxx CW and xxx CCW for clockwise
and counterclockwise. I also recall that some engines use one version and
others another (lyc vs cont). Keep in mind this is from the dark recesses
and it could be a bad dream!

Rick Muller
SR70

-------------- Original message --------------
From: Mike Kimball <mkimball@gci.net>
When facing the drive gear that drives a vacuum pump it turns counter
clockwise. Looked at another way, if I was holding the vacuum pump in my
hand with the splined shaft facing me it would be turning clockwise. Does
this mean that when ordering a vacuum pump I should order counter
clockwise
or clockwise? I don't know what the convention is.

Mike
044SR




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-----------------------------------------------------------------



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