Vacuum Pump Question

[cliffy]

I have a Sigma-Tech vac pump that has been on for 900 hrs but works fine. I know, I know, lasted longer than it should have, it's only a matter of time. OK so, just curious if anyone has ACTUAL experience with an "overhauled" vac pump? 

I know all the "ol' wives tales" etc, I'm looking for actual experience with a 1 yr/400 hr ovrhaul unit

Anyone. Anyone? :-)

[320KPH]

this is weird because a mate's J's vac pump just failed today???

 

Can anyone provide a link to a replacement that won't break the bank, or a part number so I can search for the correct pump?

 

A3B6D with the twin mags on this bird...

[cliffy]

You can go here and find the correct type after you determine the aircraft s/n.  This is the FAAs TCDS sheet for Mooney airplanes

(Type Certificate Data Sheet)

 

http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/d7b88102105d30e786257d7b00489777/$FILE/2A3_Rev_54.pdf

 

Vacuuum pumps for J models are listed on page 33 and go by serial number of the airplane. 

There may be other models that have been approved under an STC that are direct cross reference to these so check carefully.  As to pricing and/or "overhauled" units, that may be a personal choice after research. Thus my OP here.

 

To change these one really needs the special tool that Rapco sells for removing and tightening the bottom nuts on the vac pump. It's less than $30 bucks I think. Get it! You'll be glad you did. I carry mine on board in case I have to do one on the road and the A&P doesn't have one. Saves lots of shop time. 

 

A lot can be learned by reading TCDS sheets.

I've shown the pertinent data just below:

 

602. ……Vacuum pumps (see NOTE 24)

(a) **Airborne, 200CC (24-0001 thru 24-2999) or ........................................... 3.5 lbs. ..................... -5.0

( **Airborne, 211CC (24-0001 thru 24-2999)................................................ 2.5 lbs. .................... -5.0

© Airborne, 241CC-17 (alternate) S/N 24-3000 and ON................................. 3.4 lbs. .................... -5.0

(d) **Airborne, 241CC (alternate - all counter clockwise

applications) (24-0001 thru 24-2999) or ...................................................... 3.4 lbs. .................... -5.0

(e) **Sigma Tek, IU128-003 and IU128-005 or -006 (alternate - all

applications) (24-0001 thru 24-2999).......................................................... 3.4 lbs. .................... -5.0

 

NOTE 24: Aircraft models that originally were certified with vacuum powered attitude systems that have those systems 

 replaced with a non-vacuum powered attitude system: If the Primary Attitude system has been replaced with an 

FAA Approved STC’d installation that meets the requirements of 14 CFR 23.1303(f)(i)(ii)(iii)(iv)(v)(vi), 

23.1311(a)(1)(2)(5)(6)(©, 23.1321(a)(©(d)(1), 23.1331(a)((1)(2)©, thereby leaving no operational systems 

 dependent on a Primary or Standby (if equipped) Vacuum system, then the Primary and Standby (if equipped) 

 Vacuum pumps and associated lines, manifolds, etc may be removed from the aircraft. Refer to engine 

 manufacturer’s instructions of removal and capping off of engine driven vacuum pumps.

 

 

[OR75]

If you are ok with overhauled ... Rapco 211CC

If you prefer new... rapco 215CC

[N601RX]

I put on a new Tempest 215 last year after my overhauled pump failed. After some reading I decided to spend a little more and get a new one. I also liked the fact that it has a wear port indicator so I can keep an eye on how the insides look and hopefully replace it before it fails next time. It came with 3 year/1300 yr warranty. The overhauled pump was 9 or 10 years old, but only had about 100 hrs on it, so age and sitting may have had something to do with it failing.

[rbridges]

I put on a new Tempest 215 last year after my overhauled pump failed. After some reading I decided to spend a little more and get a new one. I also liked the fact that it has a wear port indicator so I can keep an eye on how the insides look and hopefully replace it before it fails next time. It came with 3 year/1300 yr warranty. The overhauled pump was 9 or 10 years old, but only had about 100 hrs on it, so age and sitting may have had something to do with it failing.

 

that's what I did.  The newer ones come with a sight window to evaluate the vanes.  I figured 1300 hrs (crossing my finger) will last to the next overhaul.  

[jetdriven]

If you fly your plane IFR and don't have a backup vacuum system and/or a backup AI, don't run them that long.

[Awqward]

My vacuum pump failed a couple of days ago somewhere over Le Mans, France (after 400hrs and 7years) on my way to Cannes.... The existing unit is a Rapco 215CC and so that is what the shop on the field has ordered to replace it.... I was wondering about other brands but mine has a cooling shroud and I was worried that only the Rapco would suit....does anyone know if this is the case?

Anthony

87'J

N60GZ

[MB65E]

I think tempest makes one as well. Some of the manufactures have gotten out of the business after too many lawsuits.

-Matt

[Shadrach]

OH'd Rapco 215C  10 years and 800hrs.  Still performing adequately when removed in March but was showing signs of softness. While watching a Gopro video, I noticed that my retractable step was not coming all the way up until I went full throttle.