Today's Message Index:
----------------------
1. 07:20 AM - Re: How to adjust vacuum regulator? (flyv35b)
2. 09:37 AM - Re: How to adjust vacuum regulator? (Hal Kempthorne)
3. 05:10 PM - Re: How to adjust vacuum regulator? (carmine pecoraro)
4. 05:16 PM - Re: How to adjust vacuum regulator? (flyv35b)
Message 1
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| Subject: | Re: How to adjust vacuum regulator? |
--> Beech-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
There should be a large jam or locking nut (about 1" wrench size) than you
need to loosen to be able to turn the knurled knob to adjust the regulator.
I believe that you would turn it counterclockwise to lower the pressure.
I'd try 1 turn to begin with and see what that does. Then you will know how
much to turn it the second time to get close. This regulator normally has a
small sponge type filter around it, typically called a garter filter.
Cliff A&P/IA
----- Original Message -----
From: <ROBINFLY@aol.com>
Subject: Beech-List: How to adjust vacuum regulator?
> --> Beech-List message posted by: ROBINFLY@aol.com
>
> Hi All,
>
> My 54 E35 has a very high vacuum reading (6 at 1800, and 6.5 at full rpm).
> Between my wet pump and gyros is a regulator that is shaped like a small
> bottle
> with "Cessna" printed on it. On top of this bottle looking thing is a
> screw
> like thing for adjustment. I could not turn the screw like thing with my
> small long nose plyer. I did not have a larger plyer, and might not have
> enough
> grip. Question:
>
> Can I use a Vise-Grip to turn it, or would I damage it with too much
> force?
> Which way do I turn to reduce vacuum, and how many turns to reduce about
> 2"?
> How come it does not have a filter like other regulator for dry pumps?
>
> Thanks.
>
> Robin Hou
>
>
>
Message 2
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| Subject: | Re: How to adjust vacuum regulator? |
--> Beech-List message posted by: Hal Kempthorne <hal_kempthorne@sbcglobal.net>
I have done annuals on my Debonair with IA as boss and me as grunt mechanic. One
IA told me that I should never need a slip joint pliers on my Debonair. I'm
sure that he would have screamed at me for even picking up a vise grips. Actually,
having since built an airplane, I can assure you that even vice grips
are sometimes okay, but plan on throwing away the part gripped.
My advice in your case is to go to your certified mechanic for this adjustment.
I say this because you don't sound like someone with much mechanic skill. I
encourage everyone to get such skill but it doesn't come easy. Also consider
that it is illegal for you to make the adjustment.
To the untrained, some of the simplest looking tasks are actually quite difficult.
I have many years experience with auto mechanics. People have asked my
advice for tuning up their MG or other car which is actually tuned rather than
replaced. Tune ups are one of the most difficult tasks for the beginner. Replacing
parts is relatively easy but adjustment usually isn't.
Adjusting the vacuum regulator is simple and quick for the A&P but you could easily
botch it. Ask him to do it while you watch.
Hal Kempthorne
Debonair for sale! Check www.clikset.com
Message 3
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| Subject: | How to adjust vacuum regulator? |
--> Beech-List message posted by: "carmine pecoraro" <aeroauto@hotmail.com>
Do tou have a Briitain Auto Pilot? If so you need higher vacuum to operate
it properly and a pressure reducer for your instruments.
cheers carmine pecoraro
>From: ROBINFLY@aol.com
>Reply-To: beech-list@matronics.com
>To: beech-list@matronics.com
>Subject: Beech-List: How to adjust vacuum regulator?
>Date: Sat, 21 May 2005 01:09:15 EDT
>
>--> Beech-List message posted by: ROBINFLY@aol.com
>
>Hi All,
>
>My 54 E35 has a very high vacuum reading (6 at 1800, and 6.5 at full rpm).
>Between my wet pump and gyros is a regulator that is shaped like a small
>bottle
>with "Cessna" printed on it. On top of this bottle looking thing is a
>screw
>like thing for adjustment. I could not turn the screw like thing with my
>small long nose plyer. I did not have a larger plyer, and might not have
>enough
>grip. Question:
>
>Can I use a Vise-Grip to turn it, or would I damage it with too much force?
>Which way do I turn to reduce vacuum, and how many turns to reduce about
>2"?
>How come it does not have a filter like other regulator for dry pumps?
>
>Thanks.
>
>Robin Hou
>
>
Message 4
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| Subject: | Re: How to adjust vacuum regulator? |
--> Beech-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
Exactly. The Britain AP needs about 10 " hg. and the instruments 5" hg.
----- Original Message -----
From: "carmine pecoraro" <aeroauto@hotmail.com>
Subject: RE: Beech-List: How to adjust vacuum regulator?
> --> Beech-List message posted by: "carmine pecoraro"
> <aeroauto@hotmail.com>
>
> Do tou have a Briitain Auto Pilot? If so you need higher vacuum to operate
> it properly and a pressure reducer for your instruments.
>
>
> cheers carmine pecoraro
>
>
>>From: ROBINFLY@aol.com
>>Reply-To: beech-list@matronics.com
>>To: beech-list@matronics.com
>>Subject: Beech-List: How to adjust vacuum regulator?
>>Date: Sat, 21 May 2005 01:09:15 EDT
>>
>>--> Beech-List message posted by: ROBINFLY@aol.com
>>
>>Hi All,
>>
>>My 54 E35 has a very high vacuum reading (6 at 1800, and 6.5 at full rpm).
>>Between my wet pump and gyros is a regulator that is shaped like a small
>>bottle
>>with "Cessna" printed on it. On top of this bottle looking thing is a
>>screw
>>like thing for adjustment. I could not turn the screw like thing with my
>>small long nose plyer. I did not have a larger plyer, and might not have
>>enough
>>grip. Question:
>>
>>Can I use a Vise-Grip to turn it, or would I damage it with too much
>>force?
>>Which way do I turn to reduce vacuum, and how many turns to reduce about
>>2"?
>>How come it does not have a filter like other regulator for dry pumps?
>>
>>Thanks.
>>
>>Robin Hou
>>
>>
>
>
>
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