Is my cooling layout correct - Pic Attached

Loz V8 Capri · Post by **Loz V8 Capri** » Sun Sep 08, 2013 9:55 pm

Hello all,

I honestly thought this would be so easy (I should know by now)....

Having recently changed the engine in my car I find myself having some cooling issues (steam from cap). I'm confident it might have something to do with my water pipe set-up.

I have an edelbrock performer intake, a thermostat housing with the extra by-pass attachment, an expansion tank from a rover, a radiator from an audi (no cap) and a P6 water pump.

I've searched multiple web sites for answers but seem to find contradicting suggestions...

Hope my diagram makes sense. Please help, its extremely frustrating

https://www.dropbox.com/s/3qpuut5o62h2o35/SDC10408.JPG

Loz V8 Capri · Post by **Loz V8 Capri** » Sun Sep 08, 2013 9:56 pm

Sorry, its a header tank...

stevieturbo · Post by **stevieturbo** » Sun Sep 08, 2013 10:26 pm

What exactly is the problem ?

The diagram looks pretty good really.

Only bit not 100% sure about is the one from stat housing to pump.

The heater would normally circulate hot water that never goes through the stat. Maybe it's just the drawing though.

Denis247 · Post by **Denis247** » Mon Sep 09, 2013 1:17 am

Almost exactly identical to my setup, except I have an extra filler cap in my top hose run. I've had this in my Lotus for years now with no problems, maybe you have a faulty component, or slipping belt (assuming it's an overheating problem you have).

Loz V8 Capri · Post by **Loz V8 Capri** » Mon Sep 09, 2013 4:15 pm

Thanks for your replies. My problem is that its overheating and pretty quick too. I get about 7 miles down the road and it starts to vent from the header tank cap.

I will check my belt but Im sure its ok...

stevieturbo · Post by **stevieturbo** » Mon Sep 09, 2013 4:25 pm

Is water circulating ok, start opening etc ?

Proper airflow through the rad ?

Darkspeed · Post by **Darkspeed** » Mon Sep 09, 2013 6:03 pm

No the connection to the expansion tank is incorrect as the top of the hose to the rad is a low pressure point - the small hose to the expansion tank must be from a permanent high pressure point the other side of the stat.

Also I know its just diagramatic but the connect from the expansion to the pump should be as close to the pump as possible.

ChrisJC · Post by **ChrisJC** » Mon Sep 09, 2013 6:46 pm

I think it is fine, provided the small pipe from the top hose to the heater tank has a pipe inside the header tank taking it to somewhere near the bottom of the tank.

Anyway, is it definitely overheating?, you can see on the gauge?

Chris.

Loz V8 Capri · Post by **Loz V8 Capri** » Fri Sep 13, 2013 8:28 pm

yeah, he's over heating. Gauge reads high and it steam out / boils over pretty quickly. Thinking of trying another header tank as this ones from a Volvo...?

stevieturbo · Post by **stevieturbo** » Fri Sep 13, 2013 9:32 pm

SO is the water pump actually working and water circulating through the rad properly ?

And the rad cooling the water ?