Been a while since I fitted a new radiator cap. Most websites don’t know what a Mini is these days. So it’s useless searching. Currently have a CPC brand 13/90 cap. Tridon seems to list either a CA1390 or CN1390? Any other suggestions on what to use?

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http://www.youtube.com/user/Hanras

Is it a long neck or a short neck radiator?

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1986 Mayfair (998 auto), 1974 S, 1974 Van, 1972 PMG Van

Too many minis

This is the current cap.

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http://www.youtube.com/user/Hanras

There’s some suggestions here for Tridon caps

viewtopic.php?f=2&t=98289&p=1043597&hilit=Tridon+radiator#p1043597

13psi is 90kpa

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You should firstly determine if the rad is long or short neck. most minis will be long neck but as it only takes a minute to check. measure from the bottom seal area to the top of the neck. long will be about 25mm while a short will be around 19mm.

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Cheers Dave.

Bang on 20mm

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http://www.youtube.com/user/Hanras

I can’t see anything in the Tridon range that will suit.

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http://www.youtube.com/user/Hanras

That short-neck cap is p/n GRC1111 at most mini suppliers like Mini Sport SA, Karcraft, Classic Motoring etc.

Hmmmm. We don’t have anything like that here. Was hoping for Rapeco/Supercrap or Autobarn.

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http://www.youtube.com/user/Hanras

On the Classic Motoring website the entry for GRC1111 is crossed to CN1390. This is a Tridon part and your favourite local stores should be able cough one up for you. The CPC brand seems to have an equivalent in 508-13 as well.

TRIDON part numbers are prefixed CN for the shorter (31mm) non-recovery cap and CR for the longer (34mm) cap.

Since yours appears to be the shorter style you just choose the release pressure, from 4 psi up to 20 psi.

See here - https://www.tridon.com.au/products/Trid ... iator-caps

If you want to replace your current cap with like for like then CN1390 appears to be the one you want.

https://www.tridon.com.au/products/Trid ... s/2/CN1390

Suggest you print the CN1390 page and take to your auto parts outlet for comparison with whatever brand they have.

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ex-NSW Police 1970 MK II Cooper S
VMCI #43

To be honest the cap you have looks fine, unless someting has broken there is little to go wrong with a non recovery cap.

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Cheers Dave.

I borrowed this from the Mokewerx website as a comparison of packaging of the two brands.

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ex-NSW Police 1970 MK II Cooper S
VMCI #43

The Tridon website shows incorrect dimensions for the CN1390. That’s what threw me.

Autobarn has the correct dimensions:

https://autobarn.com.au/ab/Autobarn-Cat ... /p/SP05456

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http://www.youtube.com/user/Hanras

I think this cap is prob 2003 vintage. So thought I might replace it.

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http://www.youtube.com/user/Hanras