M20K 231 Aerosonic Manifold Pressure/Fuel Flow Instrument Replacement

[SkyBound]

I was wondering if anyone has had experience replacing the Aerosonic combined Manifold Pressure and Fuel Flow (Aerosonic Part #651035-0107) gauge?  Please see the photo attached.

 

The FF portion has become INOP and three instrument shops that it has visited over the last month have not been able to repair it due to the lack of necessary parts. 

 

If you know of a location that may have a replacement with the same part number or have experience replacing this instrument with either a substitute combination MAP/FF gauge or two separate gauges please chime in. 

 

Thanks.

 

--Alex

[carusoam]

If plan A doesn't work...

Potential plan B....

Buy-EI.com

JPinstruments.com

Insightavionics.com

They all build a primary instrument that will occupy the same space and provide CHT, EGT, FF, MP....

BE SURE TO CHECK THE DETAILS....

best regards,

-a-

[SkyBound]

Carusoam - Thank you for the suggestions. 

 

To clarify my question to the group - I recently invested in a JPI EDM-830 and looking to have the lowest cost/simplest fix to replace this Aerosonic instrument to have primary (since the 830 is not certified) MAP and FF information.  I am open to either a single instrument or dual instruments.

 

Thanks again.

 

--Alex

[carusoam]

Check in with Frank at JPI to see if he can help with a trade in, to go from 830 you have to the certified version 930? Very modern and very expensive.

Then compare individual Guages from EI, somewhat modern and somewhat expensive. Great company.

Finding an exact replacement or getting yours rebuilt by an instrument shop is highly probable, least expensive route...

Best regards,

-a-

[SkyBound]

I spoke with JPI and the upgrade to the 930 doesn't make sense cost wise.  I won't gain any new functionality, just the capability to ditch factory instruments.  I am keeping my fingers crossed that the Aerosonic instrument may still get repaired and if not try to keep the replacement to a minimum by getting just the MAP and FF gauges.

 

Thanks again.

 

--Alex

[DaveAnderson]

Alex, I have both mp and a fuel flow indicator for sale that I took out of my 231 when I got the edm900.

http://mooneyspace.com/topic/11595-fs-various-parts-from-m20k/

[Mike A]

Alex, were you able to figure out a replacement for the MP/FF guage? I have the same issue and would like to see how it worked out.

[KSMooniac]

If I were you/y'all and had a non-primary JPI or similar already installed with fuel flow, I would dig through the nuances of the regulations and see if the FF is actually required for our planes... I don't think they are.  (I wouldn't want to fly without one, but many of us have already installed something better.)  Don't spend money on things you might not need.  

[SkyBound]

KS Mooniak - from the research that I did, the FF gauge is required and can only be replaced with another certified instrument - i.e. the JPI 830 does not qualify. 

 

Mike - Pacific Southwest Instruments was able to fix the gauge.  The repair ended up being around $1,300.  Unfortunately, once the instrument was installed, it revealed that the transducer was bad as well and had to be replaced (another $600 plus labor).

 

Contact Mona Hiebert at PSI to make arrangements to send them your instrument:

 

Mona Hiebert

Customer Sales/Service

Pacific Southwest Instruments

1721 Railroad Street

Corona, CA 92880

Phone (951) 737-0790 Ext: 122

Fax (951) 273-7149

mhiebert@psilabs.com  

www.psilabs.com

 

The other option if you prefer not to fix the gauge is to replace it with Aerospace Logic:

http://www.aerospacelogic.com/index.php?dispatch=products.view&product_id=232

 

Hope this helps.  Feel free to PM me if I can be of additional assistance.

 

--Alex

[KSMooniac]

The Aerospace Logic looks like money better spent vs. fixing obsolete instruments IMO.  Or putting that money towards a modern engine monitor... prices are down thanks to competition!

[Mike A]

I was under the understanding that it was not required, however was useful.  It is not listed on the type certificate and is not in A TOMATO FLAMES.

 

I too have a JPI 730 with FF that I use, however the fact that it is INOP irritates me.  I am considering installing a new EI digital tach, and i have a EI FF gauge/harness that I never installed in my previous cherokee, so adding a EI MP gauge wouldn't be a big jump and would look nice.