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jb20thae
Samba Member
Joined: August 10, 2021
Posts: 117
Location: West
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 Posted: Mon Oct 25, 2021 8:06 pm Post subject: kinked heater hose |
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When going over a newly purchased van, I found that in the process of removing the rear heater and joining the two coolant lines, the PO left a fairly significant kink in the line and there's not enough line to make for a smoother bend. Should this be a concern and, if so, any suggestions for smoothing the bend?
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DuncanS
Samba Member
Joined: October 17, 2013
Posts: 4583
Location: New Hampshire
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| Posted: Mon Oct 25, 2021 8:34 pm Post subject: Re: kinked heater hose |
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Where's the kink? If it's in the loop to replace the rear heater, it's fine and don't worry about it since you don't want water flowing through that anyway. It would be like having the heater still installed but the valve off.
Duncan |
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leecat
Samba Member
Joined: September 13, 2012
Posts: 773
Location: Regina
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| Posted: Mon Oct 25, 2021 8:59 pm Post subject: Re: kinked heater hose |
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| I have exactly the same kink in a PO-installed loop to replace the rear heater. I concur with Duncan that it doesn't matter in terms of coolant flow - having coolant flow through the 'hump' of the replacement hose is not needed at all. I think people just find it easier to toss in a single coupling hose than two short hoses with plugs. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50337
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| Posted: Mon Oct 25, 2021 9:30 pm Post subject: Re: kinked heater hose |
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| I have a piece of kinked copper tubing I used for the same purpose. |
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
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| Posted: Tue Oct 26, 2021 1:59 am Post subject: Re: kinked heater hose |
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If you slice open (or just look at a cut end) a length of coolant hose you will see that it has reinforcing fibers, usually a nylon product, molded into the rubber compound.
These fibers have flex but they aren't designed to flex once cured into a 180° Quick folded bend.
Something has to give when this is done.
I was taught by Mercedes Benz in the Early 1970’s that once a hose is folded so severely you now have a weak spot from damaged fibers and over stretched rubber and thus a potential failure point in your cooling system.
Years ago when I was "refreshing" my 86 a well respected VW Vendor folded up the long front radiator hoses and shoved them into a box less than 1/2 the length of the hose!
Needless to say I had an idiot attack and let them know how wrong this is..... "we do it all the time" was their unconcerned reply.
Heavy sigh...... just another step backwards for society........
Dave
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