Picture of fuel flow bracket?

[Jayhawk_aviator]

I'm fixing the fuel flow install on my j model.  It appears that near the #4 cylinder intake tube is the best location.  I'm looking for any close pictures others may have of the bracket install.  I think there is even a factory bracket that mounts in that location?  Any feedback is appreciated.

thanks

scott

[MB65E]

With the way the fuel lines go into the transducer it's pretty tight and short lines off of the fuel pump.  With all the fire sleeve and sealent that's required, I have not been able to bracket the transducer on a FI 4cyl Lycoming. The carbed version is an easier install, as well as the 6 cyl lycomings and continentals. 

My Transducer is secured by the tension of the fuel lines. However my fuel lines are clamped to the oil pan/case bolts. 

Just some thoughts,

-Matt

[N601RX]

3 hours ago, Jayhawk_aviator said:

I'm fixing the fuel flow install on my j model.  It appears that near the #4 cylinder intake tube is the best location.  I'm looking for any close pictures others may have of the bracket install.  I think there is even a factory bracket that mounts in that location?  Any feedback is appreciated.

thanks

scott

On my f I used brackets clamped to the intake pipes

[Jayhawk_aviator]

Thanks.  I've seen in the parts catalog that there appears to be a factory bracket, but it's only a partial image and I haven't been able to find any full pictures of it installed.

[carusoam]

Be aware of the longish straight lines in and out of the transducer that are required for the instrument's proper accuracy. Some people have had to install it a second time.  There will be quirky instructions that probably cover it.  No 90° turns close by and that kind of thing.  Laminar flow is important for liquids too! 

Best regards,

-a-

[Shadrach]

It's been 6 years since my installation but my recollection is as follows. Fire sleeved fuel line fits very snug just above the pilot's side of the sump. I believe I used a thin, flat piece of metal to bridge an adel clamp to the case using a sump bolt. Should be able to get a pick tomorrow.

[N231BN]

Sorry no picture but here is the page from the parts catalog.

FF.pdf

The part number for item 5 is 950233-003.

Edited February 26, 2016 by N231BN

[flyboy0681]

We just had the transducer relocated a bit more downstream from the factory position due to the failure rate we've been getting with the Red Cube. After having our third one fail in about four years, I contacted the manufacturer at which time they requested a picture of its location. After looking at the photos they concluded that it was too close to the cylinder, causing too much vibration and heat exchange. 

[Shadrach]

3 minutes ago, flyboy0681 said:

We just had the transducer relocated a bit more downstream from the factory position due to the failure rate we've been getting with the Red Cube. After having our third one fail in about four years, I contacted the manufacturer at which time they requested a picture of its location. After looking at the photos they concluded that it was too close to the cylinder, causing too much vibration and heat exchange. 

Was it jacketed with fires sleeve?

[flyboy0681]

17 minutes ago, Shadrach said:

Was it jacketed with fires sleeve?

Yup, but obviously didn't do any good.

[N601RX]

On February 20, 2016 at 10:07 AM, Jayhawk_aviator said:

I'm fixing the fuel flow install on my j model.  It appears that near the #4 cylinder intake tube is the best location.  I'm looking for any close pictures others may have of the bracket install.  I think there is even a factory bracket that mounts in that location?  Any feedback is appreciated.

thanks

scott

Check the install manual.  Most manuals only give generic advise and requirements without showing you exactly how to mount it. If it's JPI the sender should not be mounted directly to the engine like the factory sensor.  It should be suspended by the hoses on each with the hoses being clamped a certain distance from the sender.  That coupled with a few of the other requirements in the manual make the install difficult. 

[carusoam]

Since the flow is the same anywhere along the fuel line, why would they want it attached to something hot and vibrating?

A few people have noted vapor issues causing problems with the readings they were getting.

The R and S have the FF sensor mounted on the fire wall. (IIRC)

Best regards,

-a-

[Jayhawk_aviator]

THanks guys.  I think I have a bracket that will attach to the sump bolts.  Unit mounts to underside of bracket.  I know people are wrapping it in firesleeve, but I'm not quite yet sure how best to do that with the sensor mounted to a bracket.?

[N231BN]

The bolts go through one side of the fire sleeve, this also adds a layer of insulation. It would be best to mount it somewhere other than the engine like others have suggested.