996 Coolant Tech Question

[ballcock]

There's been a bit of talk on site about coolant spills/usage , and I'm hoping the more technical among you can answer a few wee questions ..

How would I know if my car has the old or new improved cap?

Can I order the new one on line? (and will it fit on the threads of my exesting coolant header?)

I've had a glance at the cap in recent days , and it looks like there's an overpressure valve built into the underside of it .. Is there any way of checking to see if it works okay? .. It looks like the 'mesh' part pushes into the cap under pressure , if it's moving freely , can I assume that the valve is operating properly?





I wish I didn't lie awake at night thinking about such inconsequentials ..

[slippydiff]

ballcock said:

There's been a bit of talk on site about coolant spills/usage , and I'm hoping the more technical among you can answer a few wee questions ..

How would I know if my car has the old or new improved cap?

Can I order the new one on line? (and will it fit on the threads of my exesting coolant header?)

I wish I didn't lie awake at night thinking about such inconsequentials ..

1. Ring your dealer and ask the parts dept

2. Haven't got a clue, but don't be so lazy Pretty sure the thread is the same otherwise everyone would be replacing header tanks that didn't require replacement.

3. Not sure how you test the cap blow off pressure

4 Try www.boots.com/shop/product_list_new_template.jsp?classificationid=1026771

[Bull996]

If it ends in 00 its old. If it ends in 01 then its OK.

[Denis O]

Bull996 said:

If it ends in 00 its old. If it ends in 01 then its OK.

[benaldo]

Yes - the new cap will fit the old header tank (well it did on mine ...)

I got it from my local OPC and it was only about £10-15 if I remember correctly.

[ballcock]

Bull996 said:

If it ends in 00 its old. If it ends in 01 then its OK.

Thanks for the replies folks (well .. Most of em anyway!)..

I'm an 00 unfortunately ..

Looks like I also have the slightest of leaks .. I'm filling coolant at the rate of about half a cup full every month or so .. There's no sign of header leakage and no sludge in the header or under the cap (well , no more so than usual!!)..

Edited by ballcock on Monday 29th January 12:14

[woogie]

ballcock said:

Bull996 said:

If it ends in 00 its old. If it ends in 01 then its OK.

Thanks for the replies folks (well .. Most of em anyway!)..

I'm an 00 unfortunately ..

Looks like I also have the slightest of leaks .. I'm filling coolant at the rate of about half a cup full every month or so .. There's no sign of header leakage and no sludge in the header or under the cap (well , no more so than usual!!)..

Edited by ballcock on Monday 29th January 12:14

Mine is 00 too . I just called John Mitchell and they are going to take a look at it tonight, they also have the 01 caps in stock.

[Fidgits]

ballcock said:

Bull996 said:

If it ends in 00 its old. If it ends in 01 then its OK.

Thanks for the replies folks (well .. Most of em anyway!)..

I'm an 00 unfortunately ..

Looks like I also have the slightest of leaks .. I'm filling coolant at the rate of about half a cup full every month or so .. There's no sign of header leakage and no sludge in the header or under the cap (well , no more so than usual!!)..

Edited by ballcock on Monday 29th January 12:14

i have a 00 too...