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TK
 Post subject: Radiator Cap
PostPosted: Mon Nov 16, 2009 1:11 pm 
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OK the search function returned nothing.
I'm putting a plastic recovery system on the Mini. The guy at Supercheap said my existing radiator cap will be fine. I know that is crap. So I went to REPCO and they gave me RC64-13 replaces CPC 508-13. When I googled the CPC 508-13 it says it has the short 22mm cap. I thought I would need a 27mm cap?

Ideas please, once and for all.
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Tombo
 Post subject:
PostPosted: Mon Nov 16, 2009 1:20 pm 
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I just put on a new long cap CPC 517-13 by memory, they however are not a proper recovery cap.
Just looked in our tridon book, the recovery cap it claims fits a mini (72-83) is CA4313.
Hope that helps.

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MiniDna
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PostPosted: Mon Nov 16, 2009 2:58 pm 
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Hi I just put recovery as well and I put 537-14 (I have aircon)
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ryan
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PostPosted: Mon Nov 16, 2009 3:01 pm 
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Guys, This is all just theory from what I have read, but......

this is how I believe it works.

You, put a blanking cap on the radiator and then, you need a cap that its suitable for your overflow tank.

I bet I got that wrong! :lol:

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sgc
 Post subject:
PostPosted: Mon Nov 16, 2009 3:24 pm 
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ryan wrote:
Guys, This is all just theory from what I have read, but......

this is how I believe it works.

You, put a blanking cap on the radiator and then, you need a cap that its suitable for your overflow tank.

I bet I got that wrong! :lol:


That's right if the overflow tank is pressurised.

If the overflow is not pressurised, you still need a pressure cap on the radiator, but one which allows the fluid back into the radiator as it cools and contracts.

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The adventures of an owner builder in the Tallarook Ranges

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ryan
 Post subject:
PostPosted: Mon Nov 16, 2009 4:22 pm 
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sgc wrote:
ryan wrote:
Guys, This is all just theory from what I have read, but......

this is how I believe it works.

You, put a blanking cap on the radiator and then, you need a cap that its suitable for your overflow tank.

I bet I got that wrong! :lol:


That's right if the overflow tank is pressurised.

If the overflow is not pressurised, you still need a pressure cap on the radiator, but one which allows the fluid back into the radiator as it cools and contracts.


Thanks for clearing that up for me SGC, I didn't realise that there were non pressurised tanks available.

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Morris 1100
 Post subject:
PostPosted: Mon Nov 16, 2009 4:25 pm 
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ryan wrote:
sgc wrote:
ryan wrote:
Guys, This is all just theory from what I have read, but......

this is how I believe it works.

You, put a blanking cap on the radiator and then, you need a cap that its suitable for your overflow tank.

I bet I got that wrong! :lol:


That's right if the overflow tank is pressurised.

If the overflow is not pressurised, you still need a pressure cap on the radiator, but one which allows the fluid back into the radiator as it cools and contracts.


Thanks for clearing that up for me SGC, I didn't realise that there were non pressurised tanks available.

Look under the bonnet of any car made in the last 20 years. :lol:
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sgc
 Post subject:
PostPosted: Mon Nov 16, 2009 4:29 pm 
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Yep, it's one less pressurised vessel/hose to fail..

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Simon

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ryan
 Post subject:
PostPosted: Mon Nov 16, 2009 4:37 pm 
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Morris 1100 wrote:
ryan wrote:
sgc wrote:
ryan wrote:
Guys, This is all just theory from what I have read, but......

this is how I believe it works.

You, put a blanking cap on the radiator and then, you need a cap that its suitable for your overflow tank.

I bet I got that wrong! :lol:


That's right if the overflow tank is pressurised.

If the overflow is not pressurised, you still need a pressure cap on the radiator, but one which allows the fluid back into the radiator as it cools and contracts.


Thanks for clearing that up for me SGC, I didn't realise that there were non pressurised tanks available.

Look under the bonnet of any car made in the last 20 years. :lol:


Good point Morris ......Very good point.....My brain isn't in gear!

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Minimad
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PostPosted: Mon Nov 16, 2009 6:26 pm 
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You can not buy a recovery type long neck cap...

Best thing to do is to pull the radiator out and take to your local rad shop and have them fit a short neck to it.

Mine needs to be done at the next engine out.

Minimad

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TK
 Post subject:
PostPosted: Mon Nov 16, 2009 8:40 pm 
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Craig (Minimad) is correct.
Dad took the radiator to the local Natrad and they said the same. I now have a short neck put on the top tank with a Commodore cap so it can be used with a non presurised overflow tank. If I want to use a Morris 1100/Moke etc etc brass presurised tank I can just chuck on a flat cap. :)
Thanks for the replies
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