Overheating?

[snakesaway]

Originally Posted by stephen low

Andrew good to put a face to the name at the club meeting last night.

Trolling the forum for some info I spied this thread and thought I'd add some detail.

On the advice of my engine builder, Don Stafford, I've used a 90C water temp sender to trigger thermo fan on. Don's theory is these cars are generally under gunned for cooling so better the thermo comes on sooner rather than later.

I also had a thermo over-ride switch installed when the car was first wired to turn the fan on whenever I want. This may become somewhat redundant as I did previously have a high temp switch trigger but you never know.

I too plan on shrouding the radiator to maximise cooling air effect but currently the system has worked well for me.

Just some food for thought.

So how had you head gasket exploration gone?

Cheers

Hi Steve,

Yes it is good to put a face to your name as well. I currently have the termo switch for my Davies Craig fan set to about 85 C because that to was my theory better to have it run a bit more than not enough. The car was originally built with just a manual on/off switch for the fan so I have kept this in circuit just a precaution.

Getting the shroud back into the front of the nose around the radiator too I think has also helped. The temp comes back down quicker once I start moving after sitting at the lights.

After lots of research on the net and looking at gaskets, heads and blocks. I feel almost certain the gasket on the drivers side bank is backwards. As Rob has suggested he spoke to Don Stafford about this.

The car hasn't overheated since the new radiator core, water pump and fan. Its just the nagging thought I really should pull the heads and double check the head gasket to be 100% sure. So I spoke to Rob last night and he is busy for the next few weeks, once he has sorted out his current list of jobs He is going to help me pull the heads and check the gasket. we will do both sides and send the heads off to be crack tested being the car has overheated twice just to be sure.

Cheers