engine temp

[hugh]

what should be normal operating temp be for a ford crossflow, mine runs at a constant 90degrees but does not boil over its got a roger king expansion tank kit.

[Taran Las]

Hugh,

Mine runs at 78-80 normally and gets to 90 in traffic when the fan switches on.

 

Regards

 

Phil Owen

[Gary G]

Mine runs at 80

 

C7 GAR

[Graham Perry]

Hugh, The temperature on a typical journey can fluctuate massively when warm on a cross-flow. If you have a constant 90 then you are lucky. Before lots of mods mine used to fluctuate between 85 and 105. They are notoriously difficult to keep consistantly cool.

[Paul Turner]

Using the Caterham supplied stat (74 degrees), fan switch (84 degrees) and overflow bottle my three x-flows ran normally at 78 degrees on the open road rising when in town or traffic. I fitted a manual fan switch which not only kept the water temp below 80 but also cooled the alternator and prevented the constant failures I suffered. On one occasion on a very hot day (mid 30's) the water temp made the high 80's regardless of fan etc when cruising on the M1 with no problems or water loss. When I had temp fluctuation problems (75 - 85) it was traced to the cooling system being presurised by a failing head gasket.

 

Paul

 

PS I did not run a heater.

[bstark]

Mine runs at around 80 most of the time but rapidly climbs to 90 ish around town. In traffic it will rise to 95 before the fan kicks in and brings it back down to 90.

 

Bob Stark

Supersprint first-timer

[John E]

In decent weather mine runs at around 80. the fan kicks in at 90+ a bit but I have put an over ride switch as I dont trust the auto switch. This is useful if you can see heavy traffic, like coming back from Le Mans in 2000 when the ambient was 30 ish. You can avoid the temp build up in advance.

[Casbar]

Mine sits around 70. At about 80, the fan switches in. But like John E, I fitted a manual switch as well, after Le Mans 2000, just in case the auto switch failed.