Posted: Tue Jun 05, 2007 8:56 pm
Greetings,
Calm down Peter,you may fall over!
Calm down Peter,you may fall over!
Bongo Fury
A forum for Bongo fans and owners
https://igmaynard.co.uk/bongo/forum/
Replace bleed Hose.
Page 2 of 2
Posted: Tue Jun 05, 2007 8:59 pm
I am calm bongoplod
Posted: Wed Jun 06, 2007 9:31 am
Fuel hose compared to coolant hose.
I think they are both right. You can never use coolant hose to run fuel in - it doesn't have the pressure rating or solvent resistance. It will fail and quite quickly.
I can't see a problem with fuel hose being used for coolant though. The pressure rating is higher and it is not going to be degraded by water, ethylene glycol or any other coolant additive. The heat rating is more than adequate as well so I really can't see why it would fail.
Fuel hose is a much higher quality hose and is too expensive to use for coolant systems - but if that is all thats available then fine.
I think they are both right. You can never use coolant hose to run fuel in - it doesn't have the pressure rating or solvent resistance. It will fail and quite quickly.
I can't see a problem with fuel hose being used for coolant though. The pressure rating is higher and it is not going to be degraded by water, ethylene glycol or any other coolant additive. The heat rating is more than adequate as well so I really can't see why it would fail.
Fuel hose is a much higher quality hose and is too expensive to use for coolant systems - but if that is all thats available then fine.
Hoses
Posted: Wed Jun 06, 2007 11:53 am
So, another one who disputes Goodyears fine scientists and engineers. 
Heater hose applications where resistance to antifreeze coolants and underhood temperatures are required.
Construction
Tube: Black Versigard (EPDM)
Reinforcement: 2 Spiral Synthetic
Cover: Black Versigard (EPDM)
Temperature Range F & C : -40F to +257F(-40C to +125C)
SAE Specification: Similar to SAEJ20R3
Warning: Do not use for fuel or oil transfer applications
A multipurpose fuel hose that can be used a fuel line, PCV connection, emission control line or fuel return line.
Specific Fuel: Leaded and unleaded gasoline, diesel fuel, gasoline blends of ethanol(E10), E-85 and methanol.
Construction
Tube: Black Hypalon (CSM)
Reinforcement: 2-Spiral Synthetic
Cover: Black Chemigum (NBR)
Temperature Range F & C : -40F to +257F (-40C to +125C)
SAE Specifications: SAE J30R7
Warning: Do not use for pressure lines or fuel injected engines.
Fuel hose is much stiffer than coolant hose so if you do use it for coolant then be careful going around corners.
Oh, before I go can you recommend any alternatives I can use on my brake hoses - no forget it, brake failure isn't as traumatic as coolant failure unless you are in the outside lane of the motorway when the temp gauge goes crazy - happy motoring.
Heater hose applications where resistance to antifreeze coolants and underhood temperatures are required.
Construction
Tube: Black Versigard (EPDM)
Reinforcement: 2 Spiral Synthetic
Cover: Black Versigard (EPDM)
Temperature Range F & C : -40F to +257F(-40C to +125C)
SAE Specification: Similar to SAEJ20R3
Warning: Do not use for fuel or oil transfer applications
A multipurpose fuel hose that can be used a fuel line, PCV connection, emission control line or fuel return line.
Specific Fuel: Leaded and unleaded gasoline, diesel fuel, gasoline blends of ethanol(E10), E-85 and methanol.
Construction
Tube: Black Hypalon (CSM)
Reinforcement: 2-Spiral Synthetic
Cover: Black Chemigum (NBR)
Temperature Range F & C : -40F to +257F (-40C to +125C)
SAE Specifications: SAE J30R7
Warning: Do not use for pressure lines or fuel injected engines.
Fuel hose is much stiffer than coolant hose so if you do use it for coolant then be careful going around corners.
Oh, before I go can you recommend any alternatives I can use on my brake hoses - no forget it, brake failure isn't as traumatic as coolant failure unless you are in the outside lane of the motorway when the temp gauge goes crazy - happy motoring.
Posted: Wed Jun 06, 2007 2:35 pm
I think the goodyear specs pretty much prove the point.
Warning - don't use coolant hose for fuels
Warning - don't use low pressure fuel pipe for high pressure fuel applications.
It doesn't say don't use for coolant. The temp rating for both are the same and its OK for the solvents found in anti-freeze.
Alternatives for brake pipes:
Steel
Stainless steel
Cupranickel
Copper (not my favourite as it work hardens but they use it and its legal
Aluminium (as above)
and then you have the braided stuff (kevlar, nylon, steel, stainless steel,carbon fibre etc)
I am not disputing they are different products for different applications. My point is just that if I was stuck I would happily use fuel line for coolant but not the other way around. I don't see how that can be inferred as a slur on Goodyears technical staff. I am sure they are lovely technical staff and Goodyear are very proud of them.
Warning - don't use coolant hose for fuels
Warning - don't use low pressure fuel pipe for high pressure fuel applications.
It doesn't say don't use for coolant. The temp rating for both are the same and its OK for the solvents found in anti-freeze.
Alternatives for brake pipes:
Steel
Stainless steel
Cupranickel
Copper (not my favourite as it work hardens but they use it and its legal
Aluminium (as above)
and then you have the braided stuff (kevlar, nylon, steel, stainless steel,carbon fibre etc)
I am not disputing they are different products for different applications. My point is just that if I was stuck I would happily use fuel line for coolant but not the other way around. I don't see how that can be inferred as a slur on Goodyears technical staff. I am sure they are lovely technical staff and Goodyear are very proud of them.
Pipes
Posted: Wed Jun 06, 2007 4:07 pm
No slur on Goodyear Staff seen or heard. I accept use fuel hose as a temp measure but use coolant hose for the long haul. 
Oh I didn't ask for alternative brake pipes I asked for alternative brake hoses, the rubber bendy bits on the end of the metal pipes.
Oh I didn't ask for alternative brake pipes I asked for alternative brake hoses, the rubber bendy bits on the end of the metal pipes.
Posted: Sat Aug 04, 2007 9:43 am
Resurrecting this thread here,
I have finally just got round to replacing My bleed hose which had over its past been shortened probably about 6 times,once being in My ownership.
The hose I have used is a genuine Mazda part and cost £27.00 delivered from Bongobits.A bit steep I know but at least I can rest assured now that I will have no more probs with it for quite a few years.
ADVISORY
One thing I did notice on the replaced hose was a deteriation of the rubber especially around the metal tree pipe that it goes onto so as an advisory to everyone alongside the problem of chaffing on the alternator that can sometimes happen its worth looking closely at it around this area.
I also used a proper jubilee clip rather than the original one as it looks more secure.
Better safe than sorry!!
Dabs
I have finally just got round to replacing My bleed hose which had over its past been shortened probably about 6 times,once being in My ownership.
The hose I have used is a genuine Mazda part and cost £27.00 delivered from Bongobits.A bit steep I know but at least I can rest assured now that I will have no more probs with it for quite a few years.
ADVISORY
One thing I did notice on the replaced hose was a deteriation of the rubber especially around the metal tree pipe that it goes onto so as an advisory to everyone alongside the problem of chaffing on the alternator that can sometimes happen its worth looking closely at it around this area.
I also used a proper jubilee clip rather than the original one as it looks more secure.
Better safe than sorry!!
Dabs
Posted: Sat Aug 04, 2007 11:03 am
Did anyone investigate the replacement of rubber hoses with SILICON ones?
I checked with a manufacturer/supplier and he seemed keen to look at what might be required but he was based in England and so I couldn't take my Bongo in for him to look at the system.
I have not contacted this lot but it looks like quality stuff - and probably prohibitively expensive - - - - It does list the prices for every size of hose - - maybe Ian could negotiate a 'kit' price. They come in black or colours!
http://www.siliconhoses.com/
I checked with a manufacturer/supplier and he seemed keen to look at what might be required but he was based in England and so I couldn't take my Bongo in for him to look at the system.
I have not contacted this lot but it looks like quality stuff - and probably prohibitively expensive - - - - It does list the prices for every size of hose - - maybe Ian could negotiate a 'kit' price. They come in black or colours!
http://www.siliconhoses.com/