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Radiator leak

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riddon(at)sent.com
Guest

Posted: Sun Jun 11, 2017 8:10 am Post subject: Radiator leak

I appear to have a very small leak from the radiator on my 912S. There is some evidence of coolant coloured water around the base of the rad and on the lower cowling.  I have only had to top it up by about ½ inch of coolant into the overflow bottle in 12 months. I am wondering if Radweld or similar would sort it out or should I bite the bullet and replace the radiator? 



Richard Iddon



G-RIXS

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JonathanMilbank

Joined: 14 Apr 2012
Posts: 384
Location: Aberdeen area

Posted: Sun Jun 11, 2017 8:44 am Post subject: Re: Radiator leak

I believe that someone used Radweld for just such a tiny leak and that it worked just fine, but of course it's very unlikely to be an approved remedy for aircraft.

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graeme bird

Joined: 15 Jul 2010
Posts: 434

Posted: Sun Jun 11, 2017 11:58 am Post subject: Re: Radiator leak

I had a small leak on mine a while back, starboard side about 1" up just where the horizonatal tube meets the column.  Changed the radiator.

You are sure its not the port pipe to rad joint though leaking a bit after flight? the presure builds up there when the pump stops.

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_________________
Graeme Bird
kit4 (Wagstaff) TBD
Kit3 G-CLXU (Gregory) mono 914 xs Woodcomp
Kit2 G-PATS - (kesterton) Mono Classic 912 warpdrive
Kit 1 G-UMPY - Mono Classic/XS 912S, Woodcomp G(@)gdbmk.co.uk

ward.t(at)xtra.co.nz
Guest

Posted: Sun Jun 11, 2017 12:37 pm Post subject: Radiator leak

Graeme,

Before buying a new radiator get it checked out by your local radiator shop. They pressurise them to find leaks. They also can fix them easily. My one turned out not to be a leak from the radiator but from the pipe joining the radiator. Can be very deceptive where it is coming from! Only needed tightening the clip.

Cheers,

TIM



Tim Ward

12 Waiwetu Street,

Fendalton,

Christchurch, 8052

New Zealand



ward.t(at)xtra.co.nz



Mob +64 210640221

 	  Quote: 	
		   On 12/06/2017, at 7:58 AM, graeme bird <graeme(at)gdbmk.co.uk> wrote:

 

 

 

 I had a small leak on mine a while back, starboard side about 1" up just where the horizonatal tube meets the column.  Changed the radiator.

 You are sure its not the port pipe to rad joint though leaking a bit after flight? the presure builds up there when the pump stops.

 

 --------

 Graeme Bird

 G-UMPY -  Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus, SmartA3

 290 hours &amp; 5 years on the Mono, 930 total

 g(at)gdbmk.co.uk

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=469977#469977

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christoph.both(at)acadiau
Guest

Posted: Mon Jun 12, 2017 6:04 am Post subject: Radiator leak

I had mine welded by a professional machine shop - no further problems.

Christoph Both

#223

Wolfville Nova Scotia

On 2017-06-11, 17:35, "owner-europa-list-server(at)matronics.com on behalf of Tim Ward" <owner-europa-list-server(at)matronics.com on behalf of ward.t(at)xtra.co.nz> wrote:

 	  Quote: 	

Graeme,

Before buying a new radiator get it checked out by your local radiator shop. They pressurise them to find leaks. They also can fix them easily. My one turned out not to be a leak from the radiator but from the pipe joining the radiator. Can be very deceptive where it is coming from! Only needed tightening the clip.

Cheers,

TIM

Tim Ward

12 Waiwetu Street,

Fendalton,

Christchurch, 8052

New Zealand

ward.t(at)xtra.co.nz

Mob +64 210640221

> On 12/06/2017, at 7:58 AM, graeme bird <graeme(at)gdbmk.co.uk> wrote:

> 

> 

> 

> I had a small leak on mine a while back, starboard side about 1" up just where the horizonatal tube meets the column.  Changed the radiator.

> You are sure its not the port pipe to rad joint though leaking a bit after flight? the presure builds up there when the pump stops.

> 

> --------

> Graeme Bird

> G-UMPY -  Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus, SmartA3

> 290 hours &amp; 5 years on the Mono, 930 total

> g(at)gdbmk.co.uk

> 

> 

> 

> 

> Read this topic online here:

> 

> http://forums.matronics.com/viewtopic.php?p=469977#469977

> 

> 

> 

> 

> 

> 

> 

> 

>

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riddon(at)sent.com
Guest

Posted: Thu Jun 15, 2017 12:08 pm Post subject: Radiator leak

Thanks for the reply Graeme. The leak does appear to be from the vicinity of the port pipe to rad joint. I checked the jubilee clips and that one was was not especially tight. Tightened it up and will see what happens after the next flight. 



Richard Iddon G-RIXS



 	  Quote: 	
		   On 11 Jun 2017, at 20:58, graeme bird <graeme(at)gdbmk.co.uk> wrote:

 

 

 

 I had a small leak on mine a while back, starboard side about 1" up just where the horizonatal tube meets the column.  Changed the radiator.

 You are sure its not the port pipe to rad joint though leaking a bit after flight? the presure builds up there when the pump stops.

 

 --------

 Graeme Bird

 G-UMPY -  Mono Classic/XS FFW 912S, Woodcomp 3000/3W CS, trutrak Gemini 2 axis AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus, SmartA3

 290 hours &amp; 5 years on the Mono, 930 total

 g(at)gdbmk.co.uk

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=469977#469977

- The Matronics Europa-List Email Forum -

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Ivor

Joined: 23 Jul 2015
Posts: 51

Posted: Fri Jun 16, 2017 3:08 am Post subject: Re: Radiator leak

Ritchard

It's a good reason to replace the jubilee clips for the constant pressure spring

clamps,

they expand and contract with heat without cutting into the hose, and it goes

without saying the silicone hoses are preferable to the rubber ones so definitely worth replacing if you haven't already done so,

Ivor

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Ivor

Joined: 23 Jul 2015
Posts: 51

Posted: Fri Jun 16, 2017 6:38 am Post subject: Re: Radiator leak

duplicate message

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