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  #1  
Old 07-02-2017, 11:15 PM
decrocker decrocker is offline
 
Join Date: Jun 2010
Location: Sun City West AZ
Posts: 39
Default Manifold Pressure sender failure

I'm on my second manifold pressure sender in less then 70 hr. The last one failed in less then 4 hours. They are both made by Mitchell Instruments part #ISS CAMPESND. When they failed the gauge needle pegs full scale. The line from the engine is from Van's with a restricted firewall fitting. Only thing different from Vans instruction is the line comes from #4 cylinder.
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  #2  
Old 07-11-2017, 05:31 PM
lowandslo lowandslo is offline
 
Join Date: Jun 2012
Location: So. Cal & AZ
Posts: 39
Default

The first one on my RV4 lasted about 50 hours. It was installed by the builder. I replaced it and the second one lasted about 8 hours. On the third try I found the instructions say to install it higher than the fitting on the engine. So I moved the location much higher. Number 3 only has about 7 hours on it now so we will see if that was the problem. If this one fails I'm giving up and trying something else. Good luck with yours. CG
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  #3  
Old 09-02-2018, 11:49 AM
gmohr gmohr is offline
 
Join Date: Feb 2012
Location: Trenton, SC
Posts: 150
Default

Wow, just found this and it is timely. I think my sender failed yesterday while
flying. Gauge is pegged. How do you test the sender vs the gauge to know if
it is bad or not and can I get this at ACS or ???

Thanks

UPDATE: I found the sensor on ACS for $59.75ea. Guess I will order today and
hopefully get it Wednesday. Need to get this fixed so I can fly in to Triple Tree
next weekend.

UPDATE 2: After further testing the gauge has gone bad. Called the Mothership
and ordered a new gauge package to be safe. Should be here by end of day tomorrow.
Will be back int he air in time to fly to Triple Tree Fly-in on Friday. Got to love Van's.
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Gene Mohr
Ret. US Army, SP-ASEL, PP-ASEL
RV6A (purchased), O360, Hartzell C/S prop
Trenton, SC (S17 homebase)
Happily Donated

Last edited by gmohr : 09-04-2018 at 12:43 PM.
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  #4  
Old 09-06-2018, 02:29 PM
gmohr gmohr is offline
 
Join Date: Feb 2012
Location: Trenton, SC
Posts: 150
Default

Got the gauge and sender replaced. Now gauge is reading ambient at rest and
-3" at 1000rpm. Definitely have a leak somewhere. Going to check the little
plastic tube when I go back up to the hangar. Frustrating.
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Gene Mohr
Ret. US Army, SP-ASEL, PP-ASEL
RV6A (purchased), O360, Hartzell C/S prop
Trenton, SC (S17 homebase)
Happily Donated
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  #5  
Old 09-06-2018, 05:37 PM
wilddog wilddog is offline
 
Join Date: Feb 2008
Location: va.
Posts: 364
Default

I wonít have anything made by Mitchell on any plane of mine. Their customer service is the worst Iíve ever encountered in my 71yr life on anything.
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  #6  
Old 09-06-2018, 07:32 PM
gmohr gmohr is offline
 
Join Date: Feb 2012
Location: Trenton, SC
Posts: 150
Default

This is a temporary fix. All new panel will be installed this winter. GRT Sport, EIS and Mini, these **** gauges will be gone.
__________________
Gene Mohr
Ret. US Army, SP-ASEL, PP-ASEL
RV6A (purchased), O360, Hartzell C/S prop
Trenton, SC (S17 homebase)
Happily Donated
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