Re: BigKev's 1954 Packard Clipper Deluxe Sedan

Posted by 32model901 On 2010/12/27 18:29:56

BigKev,

Does the "tick" change when you short a plug wire? To eliminate piston, wrist pin, rod noise....

Your point on harmonics got me thinking, could the noise be originating from outside the engine and the block is magnifying / changing it. I had a 79 jeep Cherokee that had an engine "tick" that drove me crazy. I traced it down to a broken flex plate tab on the TH400 transmission. I was sure it was a rod knock.

Another "tick" I ran across was on a '30 Ford , the thrust bearing on the crank was worn so much there was enough end-play in the crank to bias the flywheel towards the back of the engine. One of the pressure plate bolts was just a little longer than the rest and it was hitting the bell housing.

If the "tick" is loud enough maybe pulling the plugs and spinning it over with the starter would show something.
Second thought when you turn the key off and the engine winds down does the "tick" continue?

Please send some CA weather our way, I just finished digging out from 48" drifts driven by 55 mph winds, and it's supposed to be 8 deg. F tonight. Some warm Santa Anna winds would be nice...

Regards,

Dave