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  #1  
Old 06-20-2020, 09:24 AM
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jcarne jcarne is online now
 
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Default Can someone tell me how Van's does this MAP line?

Hello, I pulled this pic from Van's 360 view of the RV-14 engine.

I want to do my manifold pressure line just like they did. It looks like the line is just hose clamped on the left to the MAP sensor but what did they do on the right where it attaches to the engine? I have an AN816 coming out right there, do they just hose clamp the line to it?

Finally, what type of hose is that? Thanks!

1 by Jereme Carne, on Flickr
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  #2  
Old 06-20-2020, 10:13 AM
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AN840-4D
1/4 ID fuel rated hose

Fitting should have a restrictor added to it if you make your own.
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Last edited by rvbuilder2002 : 06-20-2020 at 10:23 AM.
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  #3  
Old 06-20-2020, 11:04 AM
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Quote:
Originally Posted by rvbuilder2002 View Post
AN840-4D
1/4 ID fuel rated hose

Fitting should have a restrictor added to it if you make your own.
Scott, do you know if you guys sell one with the restrictor in it? This fitting does not appear to be on the M1B firewall forward list for the RV-7. I'm assuming this is a standard part on the -14. Also, is the Aeroquip hose what you are referring to? Just trying to figure out what I need to order from you guys. Thanks for the help!
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Last edited by jcarne : 06-20-2020 at 11:08 AM.
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  #4  
Old 06-20-2020, 11:31 AM
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I added my MAP sensor to the three port manifold that also holds the oil and fuel pressure sensors on the firewall. TS Flightlines built a hose for me with a 90 degree fitting for connecting to #4 primer port and put a 45 deg restrictor fitting at the entry to the manifold block. Seemed to me to be the easiest way to mount the sensor.
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Old 06-20-2020, 01:30 PM
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Quote:
Originally Posted by jcarne View Post
Scott, do you know if you guys sell one with the restrictor in it? This fitting does not appear to be on the M1B firewall forward list for the RV-7. I'm assuming this is a standard part on the -14. Also, is the Aeroquip hose what you are referring to? Just trying to figure out what I need to order from you guys. Thanks for the help!
I am not Scott but yes they sell the restrictor fitting.

Any fuel / oil hose the correct size will work as long as it has the correct fitting on the ends if a fitting is necessary.

Van's sells a VA-119 manifold pressure hose but it may or not not work with the MAP gauge that you are using.
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  #6  
Old 06-20-2020, 03:26 PM
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On my RV-9A with Garmin G3X Touch, there is considerable lag in the manifold pressure reading when changing the throttle, and the reading does not settle down to a steady state once the throttle is fixed but wanders. I'm wondering if the tube is too long between the manifold and the sensor.

Any ideas?

Thanks!

Ed
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Old 06-20-2020, 04:59 PM
TS Flightlines TS Flightlines is offline
 
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Jereme, the Dynon MAP sensor has a tube stub. So if you use the rubber hose, push it Make a restrictor for the AN840 tube for the #3 cylinder.
Those with teflon hoses and crimped AN hose ends---the restrictor fitting is a no brainer. On the Dynon, side, you can take a short piece of Aeroquip 306-4 and push a male AN fitting in it, and clamp to it and the hose to the Dynon sender.

Tom
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  #8  
Old 06-21-2020, 05:50 PM
larrys larrys is offline
 
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Location: Colorado Springs
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Default "T"ed off twice for pmags

Quote:
Originally Posted by jcarne View Post
Hello, I pulled this pic from Van's 360 view of the RV-14 engine.

I want to do my manifold pressure line just like they did. It looks like the line is just hose clamped on the left to the MAP sensor but what did they do on the right where it attaches to the engine? I have an AN816 coming out right there, do they just hose clamp the line to it?

Finally, what type of hose is that? Thanks!

1 by Jereme Carne, on Flickr
Building a 14 and have the same setup with the gates hose, but I "T"ed the hose 2 times to run to pmags and I tried to keep the hoses about the same length. Has anyone had trouble with that setup? Thanks, Larry
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  #9  
Old 06-21-2020, 09:23 PM
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jcarne jcarne is online now
 
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Steve from AS. Thanks for adding the great pics! As much as I want to go with your hose on this one I think I'll go the rubber line method just in case I decide to install P-mags later which surely would result in re-ording hoses instead of just Teeing off.

I will however place an order with you and Tom soon to get my main fuel and oil hoses made.

Quote:
Originally Posted by larrys View Post
Building a 14 and have the same setup with the gates hose, but I "T"ed the hose 2 times to run to pmags and I tried to keep the hoses about the same length. Has anyone had trouble with that setup? Thanks, Larry
I have seen pics of others that have done it, don't know if there are any issues though first hand. I can't imagine why there would be.
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  #10  
Old 06-21-2020, 09:34 PM
Jake14 Jake14 is offline
 
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here's part of the page from the -14 manual. The parts are AN available from AS

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