Quote:
Originally Posted by hotcoupe
Hello, I have a '39-'41 221c.i. bored to 239. The engine just turned 10,000 on the clock (I assembled the motor). I'm planning to replace the rod bearings (full floaters) and the oil pump, my question is can I use a Melling M-15 pump without any adverse effects? The reason I want to do this is because the engine on start up after sitting for a week or two makes a slight knocking noise. I did not use a new pump when the engine was assembled.
Thanx,
Tom
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If the "slight knock" goes away when the engine warms up, my vote goes to piston slap. Floaters are great and if fit properly last 50,000 or more miles. So, why are you replacing them? I don't think your knock is rod bearings. Were new pistons installed at your rebuild?
John