Expansion Tank Cap

[sharpm 1]

hi

 

i bought a new expansion tank cap from a pug dealer recently for my phase 1.5 1.9 and its black plastic rather than metal, but part number appears to be correct - 130685.

 

Doesn't seem to fit as well as the metal one and im getting coolant loss from the overflow when hot.

 

anybody seen a plastic cap before or has it been bagged up wrong by pug, and should in fact be a metal one??

 

thanks,

[welshpug 1,666]

sounds like you haven't turned it far enough.

 

they have been plastic for at least 5 years, that's when I replaced mine and though its a little tight it doesn't leak.

[jason7579 5]

I used to have a metal one but have since replaced it with a plastic one (1990 H) to put it on I need to line up the gaps and give it a good whack, and it takes a bit of brute force to take it off. Very easy to accidently put on 1 side but not the other.

[Doof 11]

What pressure rating is that part number, might have to get one for mine.

[welshpug 1,666]

standard 1 bar.

 

1.4 bar cap from later cars can be fitted easily, they may need very small modification.

Edited January 17, 2012 by welshpug

[Atari Boy 11]

I have a replacement plastic cap, they can be a bitch to fit properly.

[cRaig 273 1 Cars]

Ive just bought one of these:

 

 

Its a Stant racing cap. Fits pretty well, and has a nifty lever to release the pressure down the overflow before you can take the cap off

[Atari Boy 11]

Ive just bought one of these:

 

 

Its a Stant racing cap. Fits pretty well, and has a nifty lever to release the pressure down the overflow before you can take the cap off

 

 

May I ask where you got the above and the cost?

[cRaig 273 1 Cars]

About 10 quid from ebay Ebay Link

 

Thats for a 16psi one, which is around 1.1bar, I was lead to beleive that the standard system runs around 1bar..

Edited January 17, 2012 by cRaig

[Atari Boy 11]

Cool, thanks.

[harryskid 193]

How strange i bought one from pug a couple of years a go and it was a metal one !

[sharpm 1]

the plastic one is correct as confirmed by pug, only old stock will be metal.

Edited January 24, 2012 by sharpm

[harryskid 193]

the plastic one is correct as confirmed by pug, only old stock will be metal.

 

I was lucky then as i preffered the metal one to a plastic jobby!

[sensualt101 31 1 Cars]

mine is metal on a 92 model with a black plastic rectangular tank believed original?