VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 09-06-2020, 05:30 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default 5 year rubber alternatives

My 5 year is coming up. I already have teflon fuel and oil hoses. The things I see on the list that I will need are;

267-789, carb rubber flange, I see one from JBM that is cheaper, any reviews?
861-116, carb diaphragm, do these go bad?
922-250, coolant hose 17mm, where is the cheapest place for this? How much is required?
922-192, coolant 90 degree, I have not found an alternative to Rotax.
230-910, intake manifold O-Rings, Mc Master Carr 9263K656
950-143, brass gasket, what is this for, does it go bad?
881-920, O-Ring set, where are these used, what are the sizes?

opinions / recommendations welcome.
Reply With Quote
  #2  
Old 09-06-2020, 09:53 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,917
Default

I used 5/8 heater hose for my coolant hose replacement at the suggestion of one of the ROTAX course instructors. Three and a half years (ver 300 hours) and no problem.
Reply With Quote
  #3  
Old 09-07-2020, 03:34 PM
TS Flightlines TS Flightlines is offline
 
Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,716
Default

For the molded hose, try high temp silicone molded heater hose. Pegasus Racing and others have it in 1'' diameter and you can cut it to fit. Works well with Dexcool.

Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
Reply With Quote
  #4  
Old 09-07-2020, 06:18 PM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,233
Default

Maybe we can make a BOM for the coolant hoses.

If I remember correctly, you need one molded hose.

17mm = 0.669
5/8 = 0.625

Pegasus Racing Supplies:

SHL16-BLUE
Blue Silicone Hose, Straight, 5/8 inch ID, 1 Meter Length $27.29


E90.16-BLUE
Blue Silicone Hose, 5/8" I.D. 90 degree Elbow, 4" Legs $12.49


SHL25-BLUE
Blue Silicone Hose, Straight, 1 inch ID, 1 Meter Length $31.49

Looks like 17mm Silicone heater hose can be sourced from MiniMania

Heater Hose Silicone 17mm Bore, 36 Long Red

Part No: C-GRH1008RED $39.01 3 Day Shipping ~ $10
__________________
-
Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 633

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
Reply With Quote
  #5  
Old 09-07-2020, 06:40 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default

Jim,
Is the silicone superior to the OEM?
Will it last longer than the expected 5 years?
Will the stock clamps work? i know some silicone cuts easily.
Reply With Quote
  #6  
Old 09-07-2020, 07:02 PM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,233
Default

This thread is timely - I will do my 5-year coolant hoses at next Annual Condition Inspection.

I think silicone is probably superior to black rubber hose. I Googled silicone heater hose Vs. black rubber... Silicone hoses benefit from superior flexibility compared to rubber. They maintain this flexibility over their lifespan unlike rubber hoses. This reduces the risk that your hoses will split, harden, or become dry rotted. Silicone hoses last practically forever and might possibly outlast your car.

Check out this thread... https://vansairforce.com/community/s...&postcount=362. Honda 1.8L being installed on RV-6A.
__________________
-
Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 633

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
Reply With Quote
  #7  
Old 09-07-2020, 07:19 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default

I would like to hear from someone that has used the silicone. Logic tells me it would be better. I can't pull this ship to the curb as easily as the car if I blow a hose.

Scott,
Do you have any input on this topic?
Reply With Quote
  #8  
Old 09-07-2020, 07:31 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default

Found these;
https://www.amazon.com/HPS-HTSEC90-0...9524800&sr=8-4

https://www.amazon.com/HPS-reinforce...9525028&sr=8-3
Reply With Quote
  #9  
Old 09-09-2020, 01:49 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default

Can anyone give me the dimensions, length of the legs, on the water tube 922-122. This is the 90 degree bent hose that can't be replaced with bulk hose.

The silicone 90 hose I am looking to buy has a 1" radius vs the shallow bend the Rotax hose has. Is there any reason this wouldn't work?

I am trying to avoid removing the cowl.
Reply With Quote
  #10  
Old 09-09-2020, 08:42 PM
seagull seagull is offline
 
Join Date: Dec 2019
Location: San Bernardino
Posts: 199
Default

Thanks,

Yes I meant 922-192.

The silicone one, also available in black.

Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 12:19 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.