jed

[B]G'day,
Just a quick question about my XF 4.1 crossflow motor. It was rebuilt and I have put the engine back in the car and it overheats. Not from taking it for a drive, but within minutes of starting the car and just with it idling it is getting hot. I have tried all the usual like: Checked all waterpipes, radiator, head gasket, distributor etc etc etc.

I am at wits end as to what to do next. Any suggestions would be great.

Has anyone else had this problem?

EXECJIM

It is a bit hard to know in you saying you checked all these things??

Did you replace the thermostat with a new 1???

Did you get the radiator cleaned out by a radiator repair shop??

Those are the 2 things i would do first..(always)

Hope this helps??

Jim

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MADXF

check for play in the waterpump shaft (grab the fan and see if there is the tiniest movement) Mine had a very small amount of play in the pump shaft and that was enough to cause cavitations and stop the pump from working properly.

$40 later, and it was all better again.

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rwd

I had a similar problem. Turned out to be the fan clutch and a big air lock.

jed

How do you fix the air lock?

rwd

Does your car have a bleed valve? Undo it to let the air out if you do.

My old car didn't so I just ran the car at normal temp with the radiator cap off, and let the anti freeze/water spew out along with the trapped air, while topping it up every now and then, and revving it also. It did the job.

You could try driving round with the heater flat out.