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Leaking coolant from an unidentified part

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petmr2
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Re: Leaking coolant from an unidentified part 2015/10/15 14:00:59 (permalink)
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I've read and followed the instructions in the link you provided... But I'm curious, my aftermarket radiator does not have a bleed valve... Will bleeding from the heater core be sufficent? 
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petmr2
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Re: Leaking coolant from an unidentified part 2015/10/15 14:24:11 (permalink)
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This is the radiator I bought... No bleed valve.. I can see on the top right hand side there is a bolt... can I simple unbolt that and let it bleed that way?
 
http://www.ebay.com.au/itm/280775958407?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
 
If I do unscrew the top bleed nut, what can I put around the thread to ensure it doesn't leak?
post edited by petmr2 - 2015/10/15 14:33:29
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Reddtarga
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Re: Leaking coolant from an unidentified part 2015/10/15 14:49:16 (permalink)
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petmr2
This is the radiator I bought... No bleed valve.. I can see on the top right hand side there is a bolt... can I simple unbolt that and let it bleed that way?
 
http://www.ebay.com.au/itm/280775958407?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 


I don't think bleeding from the heater alone would work properly as air would still be trapped in the top of the radiator.
That 'bolt' in the top of the radiator would be a plug, and if you remove it coolant will spill everywhere. But if you have plenty of spare coolant and don't mind a mess you could try it.
You really need to replace the plug with a brass tap with a hose connector. That would allow proper bleeding.
It should be a stock size plumbing thread.
 

1990 ADM NA
 
 
 
 
 
 
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petmr2
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Re: Leaking coolant from an unidentified part 2015/10/15 14:55:11 (permalink)
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I have no idea which brass tap to get and where from... If I remove the nut for now would that be sufficient? I don't plan on flushing the system that often...e very 2 years
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tiff_lee
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Re: Leaking coolant from an unidentified part 2015/10/24 01:53:43 (permalink)
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Eurgh what a laborious task bleeding one of these is, very similar to Renault 5 GT Turbo's.
 
Try removing the cap while the engine is idling, once you get your water fountain put it back on while trying not to get soaked and beware the water will be a little warm......
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Re: Leaking coolant from an unidentified part 2015/10/24 07:55:07 (permalink)
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The bleed valve (block off nut - about a 14mm octagon shape sticking out the top) on the radiator is shown on the picture on the top left hand side (passanger side when installed in the car). Go to the hardware and buy some clear 10 or 12 mm tube at about 3 m long. Cut the tube in half and attach one half of the tube to the bleeder valve (when you remove the block nut ontop of the radiator passanger side that I described), and attach the other to the valve on the heater front trunk.
Google the instructions - easy and quick task.
Once the coolant is up the tubes and stops bubbling out air - it's done.
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