Hi all. Hoping to pick ur hopefully very vast range rover minds. I have recently bought a range rover 4.6 hse with gas conversion and as I was driving her home the head gasket went due to a pipe coming off due to dodgey clip holding it on. The heads were in a sorry state so I have bought reconditioned ones which are excellent. Had the liners checked for slippage and they all good. No sign of porous block but after putting back all together its still getting hot. Now my first thought is the thermostat and or water pump I'm also going to take off rad to see if clean of sediment well gonna give good wash out. But if still getting hot has any ideas what my problem could be. Many thanks in advance
hot under the bonnet
- Thread starter p38phil
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Datatek
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Viscous fan is a common failure item.
wil2813
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+1,also if rad is clogged up throw it in the bin and buy a new one its cheaper than a engine,also check return to header isn't blocked check flow both ways to be sure as any small partical or sealant will block this quite easily
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The fabled 'Newspaper Test'
Get a Rolled up newspaper and start the engine and get up to temp, carefully place the rolled up newspaper into the fan, if it gets chewed up - Viscous Unit is OK, if you can stop or appreciably slow the fan - Viscous Unit fecked!
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Or you could use the method as outlined in my "How to" which is a little less hazardous. And does prevent blades being knocked off.
StuckAgainSteve
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Bit like drowning a woman to see if she's a witch! You couldn't stop the fan (smashing it to bits) so it's innocent!
sandyt
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The other thing worth looking at is the connections where the vapouriser has been spliced in depending where they are - and usually by the flow and return to the heater matrix if the wrong size pipe is used you can get an airlock in the heater matrix so make sure there is no air in the system
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