Re: Valve train noise 1932 901

Posted by 32model901 On 2018/2/10 9:27:53

Marty,

Your valve chamber looks very dry, did you wipe it down? There should be a film of oil covering everything inside along with some pooling of oil on the chamber floor.

I'd also check the valve stem clearance to the guides. If someone replaced the guides and didn't check the clearance after the guides were pressed in the lack of proper clearance could be an issue. Pin gauges are an easy way to check the guide bore size.

Also if the motor sat for a period before running and the stem to guide areas were not lubricated properly you could have some corrosion causing binding.

The rocker arms receive pressurized oil thru holes in the crankcase that exits into the aluminum casting holding the rocker arms together. Thru the casting it goes into the hollow rocker arm shaft. If no one took apart these assemblies and cleaned out the hollow shaft it may be plugged. The large screw on the end of the rocker arm assembly can be removed to get to the hollow shaft.

Regards,

Dave