Overheating

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Originally Posted by keith_b

Thats what i though first but the temp guage goes up near the top and them it starts to boil over so my guess is the rad but don't want to spend €200 on a guess. I pulled of the top and bottom hoses on the rad and put a water in top of rad and it seemed to flow out the bottom fine but im guessin its not goin through all the fins and not cooling properly. Anybody in the kilkenny area to flow test a rad? As long as the head is ok i suppose its not all bad.

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well i reckon u cant go wrong with a flow test anyway lad. its cheap eoungh and will tell alot. im in cork so cant help ya on anyone that can do it up ur end........:(

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Originally Posted by darren C

does the water in rad look contaminated?
is it building pressure all the time or just towing?

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If the water in the rad looks contaminated, and the car is spitting coolant into the overflow tank and it is getting too hot when driven hard what would this indicate?

That sounds a lot more like a headgasket then anything to me, it's sounds like its gone between a coolant channel and one of the cylinders, it doesn't have to have mayo in the oil to be a headgasket.

Is she slow to start in the morning white smoke out the back?

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Originally Posted by paulcronin55

That sounds a lot more like a headgasket then anything to me, it's sounds like its gone between a coolant channel and one of the cylinders, it doesn't have to have mayo in the oil to be a headgasket.

Is she slow to start in the morning white smoke out the back?

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No typical diesel starts first time every time with a puff of black smoke. Might get a sniff test done to check the head gasket. Im guessin if it is the head gasket it would be cheaper to buy an engine.

Why do people always assume headgasket failure = mixing oil and water..

Head gasket failure can =
Oil leak (In to cylinders or outside the block)
Water leak (Into cylinders or outside the block)
Mixing oil and water. either way
Or pressurising the water.
Also could be blowing compression between cylinders. or out between the head at the block.

Head gaskets can go in lots of different ways.

Also if its been boiled, 100% your head will be cracked. Which will also cause it to put pressure into the water.

But as said, it could be blocked rad, weak fan or fan not working? water pump not pumping? could be loads of things

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Originally Posted by Dermot

Why do people always assume headgasket failure = mixing oil and water..

Head gasket failure can =
Oil leak (In to cylinders or outside the block)
Water leak (Into cylinders or outside the block)
Mixing oil and water. either way
Or pressurising the water.
Also could be blowing compression between cylinders. or out between the head at the block.

Head gaskets can go in lots of different ways.

Also if its been boiled, 100% your head will be cracked. Which will also cause it to put pressure into the water.

But as said, it could be blocked rad, weak fan or fan not working? water pump not pumping? could be loads of things

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Had a mechanic friend over today to have a look. Did sniffer test and it seams ok. Its seams the fan isnt working correctly. It dosent lock as it should and stays spinning at the same speed all the time and not speeding up with the revs. So anyone know where to get a second hand fan for a 98 suzuki grand vitara mazda diesel??????????????