fbpx
Jump to Forum..

oil pressure

in 912 / 914 Technical Questions 8 years ago
I've been having oil pressure fluctuations lately so I decided to install a new sender VDO it turned out not being compatible with my guage so I ordered a new guage from aircraft spruce aviasport IM-572 when I turn the master on guage goes all the way up to max this I'm told is normal when I start the engine it stays at max so took everything out and replaced with the old one am I doing something wrong in the instal only positive negative and sender wire i'm thinking bad sender any ideas

  • Re: oil pressure

    by » 8 years ago

    There are very different senders available. Particularly mind the way they function.
    The good old VDO sender basically delivers a resistance which changes over pressure. A gauge must obviously work with that resistance as input and the bandwidth of the sender.
    Other senders deliver voltage or even a digital signal. And those won't work with resistance-based gauges. Quite the same way a gauge expecting voltage will fail if resistance comes through.
    What gauge did you have installed originally and what senders (exactly) have you tried? Knowing that would help troubleshooting.
    Regards
    Peter
      
    Report

  • Re: oil pressure

    by » 8 years ago

    isimg the VDO with the green dot with the aviasport IM-572 guage what im thinking is I probably fried the sender eith my old automotive type guage
      
    Report

  • Re: oil pressure

    by » 8 years ago

    I'd like to suggest you check the basic functionality of both gauge and sender to start with.
    This seems to be a very helpful document:
    http://www.aviasport.com/pdf/Instruments/Datasheet_IM_572.pdf
    Also check the wiring according to the datasheet referenced.
    Good luck!
      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
Fuel Pressure Alarm Settings 912iS Technical Questions 0
How does the TCU reads the fuel pressure? 912 / 914 Technical Questions 2
Oil tank flare nut torque value General Tech Discussion 2
Oil tank flare nut torque value General Tech Discussion 1
What thread is that on my new oil cooler? 912 / 914 Technical Questions 1