Will and others,
If you go to :https/ www.customflightcreations.com<http://www.customflightc
reations.com> I have the fuel and other hose recommendations.
In the US, Gates, Continental, Goodyear or any of the reputable hose manufa
cturers manufacture =93barrier=94 fuel line that meet the EPA Recommended E
missions Requirements are fine. R7 is old line and has been replaced with
R14 which has a higher permeation resistance, and now is pretty much the st
andard. The Emissions standards are printed on the hose normally (marine h
ose is an exception) and can be identified easily by looking at the hose.
It is just rubber hose, lined with a butyl or viton inner liner . Normal c
arburated line is perfectly fine rated to 2-3 bar or about 30 to 50 PSI. I
t is cheaper also than the fuel injected line $4 vs $12. The difference is
more nylon webbing sewn into the rubber hose. The liner keeps the fuel sm
ell to virtually zero and as a result, the ethanol or fuel additives will n
ot harm the hose and it stays remarkably supple over time.
Researching fuel line is not enjoyable. Manufactures do not give enough in
fo, so simply go by the R rating.
Stay away from Teflon and PTFE hoses as they get brittle and take a set ove
rtime and what should be a lifetime hose ends up being a significant leak h
azard if the hose is simply moved during maintenance or rerouted.
Below is an excerpt from my own N12AY Parts List rather than the on line le
ss detailed version.
Best Regards,
Bud Yerly
Hoses:
Recommended Fuel Hose: 5/16=94 R14 or similar odor resistant silicone/but
yl/viton lined carburetor hose.
However: Parker Superflex Fuel hose is R7 equivalent and is OK for ethanol
/diesel/biodiesel etc.
>From Aircraft Spruce SUPER FLEX FUEL LINE HOSE 5/16"/7mm single braid 100PS
I working pressure, 0.562=94ID 14.3mm OD, 2" min bend radius, ACS P/N: 05-
07223 $3.50
I still prefer auto or marine hose R14 or J1527 15gm/m2/day from auto or ma
rine dealers.
Recommended Rotax Engine Coolant Hose suppliers: Are either Rotax supplied
rubber 17mm hoses rubber and one bent silicone hose, or I now use Silicone
heater hose of better quality but with issues on clamping as different spr
ing clamp may be needed or buy proper silicone hose clamps. Do not use Bre
eze or similar worm clamps as it cuts the silicone. Silicone hose should n
ot need heat reflective sleeve as it is highly heat resistant, but protecti
on is still recommended:
Alternate cooling hose: 5/8=94 Silicone hose from Amazon Hose or Aircraft
Spruce such as:
HPS 4-Ply 5/8" (16mm) 1 Foot Long Blue Silicone Hose or Fle
x Tech www.siliconehose.com
5/8" ID x 1 Foot Length. Max Temperature Rating: 350F. HPS High Temp 4-ply
Reinforced Blue
ACS : Silicone Hose 5/8"ID, 0.95"OD, .220Wall, ACS P/N 05-
00661 $9.65
Silicone Tube Coupler Hose meet or exceed SAEJ20 standard
Fits 17 mm Rotax fittings rather tight and can use the existing worm clamps
but not the spring clamps.
Better to order from the UK or similar 17mm line. Dayco is a manufacturer
but it is double silicone and slightly fatter than standard.
Europa Specific Shaped hose: 1=94 shaped hoses are bought directly from Eu
ropa. Europa stocks the new silicone hose at a good price. Highly recomme
nded. CO5 and CO6 in silicone are about 36UKPounds each.
If not available: Consider HPS formed hose like the 180/90/straight hoses f
ittings and a lot of clamps:
1" (25mm) 1-1/2" $25.00 HTSEC180-100-BLK HTSEC180-10
0-BLUE
HPS 90 degree:
1" (25mm) 4" 4-Ply $21.32 HTSEC90-100-BLK
HTSEC90-100-BLUE
HPS Straight typical:
1" (25mm) 1 Foot 5mm 4-Ply Polyester 350F $25.53 H
TST-100-BLK HTST-100-BLUE
Proper Clamps and couplers are available also www.hps-siliconehoses.com
Recommended Oil Lines:
=BD =93 Parker Push-Lok=AE 836 multipurpose hose delivers high temperature
performance, up to 302=B0F, and higher working pressures than 821 hose. App
roved with crimp or push on fittings and with a distinctive blue cover indi
cating a high temperature rating. Will fit on new 13mm fittings on Rotax 9
12 push on series oil tank fittings but must be heated and is a hard fit.
Cut off hose only once on.
=BD =93 Aeroquip AQP FC332 Push on hose is similar.
Alternate: Mil 6000 -40F to +250F: ACS P/N: 6000-8 1/2ID 7/8OD 1
000 $6.70
I don=92t use these on the 914 due to the proximity to the exhaust muffler
heat they do work but you have to inspect more often and cover with reflect
ive heat shield listed under heat shield:
Heat shield:
For lower engine coolant and oil lines use: Thermo-Tec Thermo-Sleeve P/N:14
015 for 1 to 1.5 inch hoses, and P/N: 14011 for 5/8 to 3/4 =93
For fire protection of fuel lines and or oil lines:
Fire Sleeve: Parker / Aeroquip 12 or 10 sized PN FBS2200 I prefer Parker S
tratoflex as it is more flexible. Aeroquip is very stiff and is poor for 2
inch bend radii.
To seal the fuzzy cut ends use either Firewall 2000 or Permatex Red Silicon
e RTV or the new .
Banding is: 10781-4 clamp to secure firesleeve material over the basic fab
ricated hose assembly if desired.
Fuel sight gauge hose/ clear tubing:
Aircraft Spruce P/N: 05-01063 3/8=94 OD, =BC=94 ID
Aircraft Spruce P/N: # 15-06094 Super Heavy Duty Pulse line 3/8=94 OD, 1/4
=93 ID
Brake Line:
Normally all Matco now: See Landing Gear Below
Brake Line: =BC OD .018 ID line: N Tubing - Natural P/N: 05-01011 ID Wall:
0.035=94, Burst 960
A/C Spruce: Matco Nylon II Tube 1/4" 06-01133 MSCNNR4/035
$1.49 Use with Matco Fittings.
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