crashley

Any plane which is upside down is not a good place to be. Don't get caught up in the what if arguments. I carry a small axe located next to my seat which will make quick work of getting rid of the canopy

I have also thought about fitting a probe bently nevada make lots of these probes in different ranges typically something like 0 to 1" per second they are generally 24 volt supplied and have a 4-20 ma output

does anyone have the typical vibration level of a 912 rotax

doesnt look like the bearing cup is pressed fully home into the rim

I have deleted my posts till I check with an instructor there seems to be a bit of confusion ( maybe just me ) on what constitutes a type as against a group

Thanks for the update It seems that the council doesn't realise what an asset they have and how many visitors, business and income that it brings in.

Hi I heard a rumour that Wellington shire is now charging landing fees at Yarram and West Sale airports

While I'm not doubting that what you say is true, that is a very strange requirement, for a sensor NOT to be mounted to the equipment it is supposed to monitor.

This is out of the dynon manual

Oil Pressure Sensor The EMS-D10 supports several oil pressure sensor installations. The Dynon-supplied sensor and the Rotax and Jabiru pre-installed sensors are the most common. DYNON-SUPPLIED OIL PRESSURE SENSOR First, mount the oil pressure sensor to a fixed location using an Adel clamp (see picture at lower right) or other secure method. The oil pressure sensor must not be installed directly to the engine due to potential vibration problems. Dynon Avionics’ sensor is supplied with a 1/8” NPT pipe thread fitting. An adapter might be necessary for some engines. Please see the manual supplied by the engine’s manufacturer. You must use appropriate pipe fitting adapters and ensure that the case of the sender has a connection to ground. This is critical for functionality. Crimp a standard #8 ring terminal onto the white/yellow wire from pin 6. Unscrew the stud cap from the threaded stud. Place the ring terminal on the stud and secure the cap down sandwiching the ring terminal. Due to vibration issues, never connect the sensor directly to the engine. If you use Teflon tape or other seal, ensure the sensor casing still maintains a good connection to ground. JABIRU AND ROTAX OIL PRESSURE If you are installing on a Jabiru or Rotax engine, your engine comes with a pre-installed oil pressure sensor. Prior to mid-2008, Rotax provided an oil pressure sensor with 2 tabs for electrical connection. In mid-2008, Rotax switched to a new type of oil pressure sensor (Rotax P/N 956413) with an integrated 2-wire cable. Connect this newer sensor according to the wiring diagram at right. Connect the red wire of the new sensor to EMS DB37 Pin 15 (12V). Connect the white wire of the new sensor to EMS DB37 Pin 6. Then, connect one end of a 200Ω resistor to pin 6, and the other end to ground. The Jabiru and both types of Rotax oil pressure sensors are compatible with the FlightDEKD180. Select the correct sensor type as described in the Oil Pressure Configuration section on page 5-9

I used an oil line supplied by a hydraulic company 3500 psi and high temp rated to remote mount the sender I also covered it in fire sleeve so I think it should be fine

My oil pressure now is a lot more stable than before and am now complying with the VDO requirement that the sender must not be mounted directly to the engine

I think this is the latest service note it says evans is no longer recommended for si and the new type heads

it also says head temps are hotter with evans

http://legacy.rotaxowner.com/si_tb_info/serviceinfo/si-912i-001r3.pdf

good quality 16mm silicone hose can replace the rotax 17 mm hose or you have to get the 17mm hose from bert floods and as mentioned by rick evans is no longer recommended

make sure you flush it out properly before using a good quality glycol mix also as per ricks post I use Castrol and distilled water

blown head gasket wont let water into the oil only a cracked head can, but that is extremely rare, more likely condensation in the oil

If you are worried about air in the oil circuit you must purge the oil system by pressurising the oil tank with air BEFORE YOU RUN THE ENGINE and I would also check the valve lifters for correct operation as per the rotax manual

it may be running rough because of a soft or faulty lifter

you must check the actual fuel flow at to each carby if you have played with the fuel system ie if you have changed lines or filter type etc it only takes a bit of debris etc to block a banjo type fitting

and the carby balance must be checked as it does not have to be far out to make the engine run very roughly

have you rebalanced the carbies with a vacuum gauge if they are out of balance it will run rough and what do you mean by you will have to purge the oil system the only time it needs to purged is when the engine is first installed . and have you checked for proper fuel flow through the new fuel lines and filter ie disconnect at the carby and measure the actual fuel flow

Any details

good point what does a missed approach actually mean

Hi we need a bit more info ie when is the 50 rpm drop occurring and what are the symptoms of the ignition shut down ie once only or continually once every minute etc

new plane old plane did it start suddenly or gradually

http://legacy.rotaxowner.com/si_tb_info/serviceb/sb-912-066ul-r1.pdfSo for anyone with a factory built aircraft by the look of it you must put 4 new cylinder heads on your engine. I see it is mandatory so I suppose it is for all engines or really is it just certified engines?

thanks for the update always it is good to find the cause of a problem now a bit of work, a few dollars then ready for another couple of thousand hours

Aren't the terms early and late an indication of time whereas long short and mid indicate a position

at Yltv the terms short mid or long and also low or high are commonly used never heard early or late used locally

have you notified casa I believe all bird strikes must be reported

I use a rotary pump with a filter on the outlet it is mounted on a super cheap type trolley which holds three plastic 20 litre drums I brought 1 " hose with a copper trace for earthing I also earth the trolley and pump frame to the plane exhaust

I brought the pump and filter from the local truck supplies the filter has a 1" inlet and outlet and is commonly used on farm diesel tanks and the hose was sourced from www.hosesonline.com.au they will supply short lengths of proper fuel hose at good prices

If an aircraft begins to climb after a static port becomes blocked, the airspeed begins to show a decrease as the aircraft continues to climb. This is due to the decrease in static pressure on the pitot side, while the pressure on the static side is held constant.

A blockage of the static system also affects the altimeter and VSI. Trapped static pressure causes the altimeter to freeze at the altitude where the blockage occurred. In the case of the VSI, a blocked static system produces a continuous zero indication

water in static or pitot tubes

pm sent

a piece of clear plastic hose filled with water and a tape measure

a piece of clear plastic hose filled with water and a tape measure