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Thread: rattling sound after overheating?

  1. 4th February 2011, 10:07 AM #1
    mandala1111
    mandala1111 is offline Master
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    rattling sound after overheating?

    Hello again all.
    I have solved the bleeding air from the radiator and the temp is fine now.My problem now is that there is a rattling sound when I accelerate and put a bit more load on the engine.It's fine while cruising but as soon as I accelerate or start going up a hill and put a bit more load on the engine I can hear a rattling sound.It is the same sort of sound an engine makes if the tuning is out and you start hearing a rattly sound when you accelerate or it even sounds a bit like the engine oil is very low but it is full and very fresh oil.Can overheating an engine cause oil pump problems or damage the oil quality.Any ideas would be appreciated.I am hoping it's not main bearings.Cheers Shane
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  2. 4th February 2011, 10:23 AM #2
    mike 90 RR Guest
    Check your timing .... Set it back to 3 degrees
    If it disappears ... Then advance to 9 degrees


    While your at it .... Suck on the vacuum advance and see if it works


    Cheers
    Mike
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  3. 5th February 2011, 07:13 PM #3
    chazza
    chazza is offline YarnMaster
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    How hot did it get?

    The worst case scenario is that the cylinder liners have slipped and are contacting the crankshaft Is the noise there when the engine is cold? If not then it it looks like it could be liners,

    Cheers Charlie
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  4. 5th February 2011, 07:49 PM #4
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    bee utey
    bee utey is offline AT REST
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    Possibly head gasket failure, but also likely the exhaust manifold bolts need checking for tightness. Sometimes they fall out they get so loose.
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