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2.0 Zetec Plumbing
Krismc - 25/6/06 at 07:59 PM

Right my set is as below on my black top zetec, i have the 2 rad connections the water pump connection, the main water rail connection(above thermo), my top and bottom expansion tank connections, as what looks to be a hole in side of waterrail which could be utilised if needed!




basically what goes where!!!!????






[Edited on 25/6/06 by Krismc]

Krismc - 25/6/06 at 08:07 PM

andyharding - 25/6/06 at 08:24 PM

I'd do it like this assuming the small take-off on the water rail is the highest point and before the thermostat.


Zetec Plumbing
Zetec Plumbing

Krismc - 25/6/06 at 08:26 PM

it aint the highest point its nearly the highest point the thermostat and rail outlet is over a inch higher!

and how high does the expansion tank have to be???

andyharding - 25/6/06 at 08:30 PM

That should be OK.

The top of the expansion tank needs to be the highest point on the whole system at a minimum.

[Edited on 25/6/06 by andyharding]

Krismc - 25/6/06 at 08:47 PM

so the water pump takes water from expansion tank and from the bottom radiator hose!!

[Edited on 25/6/06 by Krismc]

[Edited on 25/6/06 by Krismc]

andyharding - 25/6/06 at 08:54 PM

Yup, the top hose on the expansion tank should only be about 8mm though. This bleeds out air and lets the whole system come up to temp and then when the stat opens the much bigger hoses through the rad are less restrictive.

andyharding - 25/6/06 at 08:56 PM

Just to add I haven't had a Zetec running like this but have done over 1K miles on my Pinto plumbed almost like this and it's worked very well.

stevebubs - 26/6/06 at 07:49 AM

quote:
Originally posted by andyharding
I'd do it like this assuming the small take-off on the water rail is the highest point and before the thermostat.


Zetec Plumbing
Zetec Plumbing


This looks fine but I think most people drill a 3mm hole in the thermostat for warmup circulation

andyharding - 26/6/06 at 08:07 AM

That sounds like a good idea as the small take-off on the manifold is quite a way from the stat.

roadboy - 26/6/06 at 09:08 AM

The plumbing is correct, make sure the hose from the expansion tank to the bottom hose isn't too largeas the pumpwill pull the water down from the tank.
Cheers
Ian

stevebubs - 26/6/06 at 04:54 PM

quote:
Originally posted by Krismc
it aint the highest point its nearly the highest point the thermostat and rail outlet is over a inch higher!

and how high does the expansion tank have to be???


Don't think there's really a set size. However, you do need to be careful as to the pressure cap fitted either on the rail or the header tank (one only remember). I think the zetec cooling system likes to run at a slightly higher pressure to most road cars.

I fitted an expansion tank like the one from Westfield to my car, but one from any zetec-engined car will do...

Krismc - 26/6/06 at 06:20 PM

Ive got a MNR Alli tank to be fitted, and ive already got a 3mm hole in the thermostat, but ill plumb in as you say!!

And tell you the results!

stevebubs - 26/6/06 at 10:56 PM

FWIW,

I've only just come back from Le Mans....pretty intense heat (35deg+)... and cooling system didn't skip a beat.

Did fit the reverse impellor before I went, though...

http://boardroom.wscc.co.uk/cgi-bin/ikonboard.cgi?act=ST;f=3;t= 32834;hl=stevebubs