Re: Can't find source of engine tapping sound
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Forum Ambassador
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G'day Brian(itdmachinist),
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Posted on: 2018/5/7 20:01
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Mal
/o[]o\ ==== ![]() Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this? ![]() Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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Re: Can't find source of engine tapping sound
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Home away from home
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Piston slap, or a slightly loose wrist pin. Any sort of stickiness in the valves will cause a lousy idle or at higher speeds a significant loss of power.
Posted on: 2018/5/7 20:31
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Re: Can't find source of engine tapping sound
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Home away from home
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Look for an exhaust manifold leak/bad gasket. Good luck.
Posted on: 2018/5/7 21:39
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Re: Can't find source of engine tapping sound
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Home away from home
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Fuel Pump ?
Posted on: 2018/5/8 12:15
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Re: Can't find source of engine tapping sound
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Just popping in
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It is the wrist pin bushing. Felt it pivot.
Also found a spot under cyl 6 that appears to be grey sludge from bearing material. I am very lucky that there is no damage to the crank. I gotta check the rear main still as If junk came in with the oil it had to hit there first. Guess I will pull the head and replace the wrist pin bushing and the rod bearing. Disappointing as this motor has low miles. But I guess these things happen. Luckily the rest of the rods feel fine.
Posted on: 2018/5/9 16:39
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Re: Can't find source of engine tapping sound
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Forum Ambassador
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Posted on: 2018/5/10 0:12
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Mal
/o[]o\ ==== ![]() Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this? ![]() Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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