Need to find a stake down kit!
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The stakedown kit for the XK engine consist of six metal plates each mounted with two bolts that screw into the cylinder head. Each metal plate overlaps two tappet guides - the tappet guides (I believe made of steel) are sunk into the aluminum head - it's a press fit. When Jaguar increased the cooling system operating temperature (higher temp. thermostat) for emissions reasons, the press fit didn't work so well over the longer term any longer, resulting in the tappet guides working themselves loose and being hit by the camshaft - with - obviously - not good results for the engine.
Christian
Christian
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