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The mkiv Supra Owners Club

Coolant leak from this pipe.


swiftstu

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Hi all,

 

Can any club members offer any advice on what may be causing a a leak from the pipe in the attached photos. It’s quite a bad one, but I can’t work out what the pipe is. It looks like it’s just press fitted?

 

I can’t find any tech Info searching the forums, but ahead of taking things off I’d like to order any parts / gaskets I might need.

 

Thank you in advance!

 

https://1drv.ms/u/s!Aq0iXwZ_BEW7lFsd1ndXaJWQ6kxq

 

https://1drv.ms/u/s!Aq0iXwZ_BEW7lF19zQzm8e_9VSCC

Edited by swiftstu (see edit history)
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attachment.php?attachmentid=232713&stc=1&d=1563015816

 

The pipe that is leaking is more than likely from one of the two rubber o-rings that hold the water neck to the bypass tube.

 

To fix this you will need to drain the coolant from your car. Remove the distributor, then you can access the waterneck. Waterneck is only held on with two m6 bolts. Once those are off you will need to remove the bypass tube. Depending on how corroded it is, this could be as easy as pulling it out, or getting a set of molegrips on it and trying to rotate/pull until it comes free.

 

Assembly will be the reverse of this, using your new O-rings. Be sure to grease the o-rings slightly on install, as if they have no grease they can tear on install, causing a leak.

 

Part #'s of parts you need:

 

Water Outlet O-Ring: 96761-24028

Water Bypass Tube O-Rings (2): 96761-24022

water neck na.jpg

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http://www.mkivsupra.net/vbb/attachment.php?attachmentid=232713&stc=1&d=1563015816

 

The pipe that is leaking is more than likely from one of the two rubber o-rings that hold the water neck to the bypass tube.

 

To fix this you will need to drain the coolant from your car. Remove the distributor, then you can access the waterneck. Waterneck is only held on with two m6 bolts. Once those are off you will need to remove the bypass tube. Depending on how corroded it is, this could be as easy as pulling it out, or getting a set of molegrips on it and trying to rotate/pull until it comes free.

 

Assembly will be the reverse of this, using your new O-rings. Be sure to grease the o-rings slightly on install, as if they have no grease they can tear on install, causing a leak.

 

Part #'s of parts you need:

 

Water Outlet O-Ring: 96761-24028

Water Bypass Tube O-Rings (2): 96761-24022

 

That’s great thank you. Exactly what I was after.

 

I can’t find any kits of those O rings on ‘tinternet. Do you know if generic O rings would do? I have one of those massive selection boxes..

 

Thanks for the responses!!

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That’s great thank you. Exactly what I was after.

 

I can’t find any kits of those O rings on ‘tinternet. Do you know if generic O rings would do? I have one of those massive selection boxes..

 

Thanks for the responses!!

 

You can take those part numbers and go to your local toyota. They can order them in for you

 

Generic O-rings may work, only one way to find out

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