engine knocking

I

izze_8

Junior Member
I'm back.... I spent the weekend getting the timing figured out on my car. I finally got it running pretty well. I think I got the timing figured out. I was adjusting the timing, then driving it around the block to test it out. The last time I timed it today and took it out, it ran great. But about three blocks from the house it started to knock. Very lightly, then louder and louder. I quickly got the car home and let it cool off. I gave the timing one more try, just to make sure the pistons were not hitting the the top of the block because of no spark. But the knock is still there. I took a quick video of it to replay at my computer. It sounds like the knocking picks up in volume then dies back down. Then repeats.

I noticed that my water pump is dripping a lot more then usual after the knocking started. Can someone please take a look at this video and give their expert opinion? I would appreciate it.

http://www.christopher-mccabe.com/forums/noise.mov
 
Well, I inherited the car about 5-6 weeks ago. I've been flushing the engine. Fixing fuel line issues. Replacing hoses and re wiring the car. Doing a lot of odd ends. I've been doing as much as I can to it without spending a fortune.

I put on a new coil. New radiator hoses. New fuel lines with filters. Rebuild the carburetor. New gas gauge. Small stuff like that.

The main issue has been overheating. The radiator has been boiling over after each 5 min drive. Yesterday I replaced the radiator cap because the old one would not stay on. And as I said, I re timed the engine today. Took it out a few times to test the timing. After a few blocks it started to knock. The cap stayed on this time though. A little coolant under the car from the over flow. And now a good drip every two - three seconds from the water pump.

The car has never had a lot of power, until I get it into third gear. And there is a lot of sputtering and back fire to get to third gear. Esp on hills. This is why I was re timing the engine.
 
The logical place to start is a good spark, and timing.
Any one in the local area you can ask for help. Is there a local club member nearby?
The overheating could be a head gasket, or a cracked block.
Try to isolate the knock. You might get lucky and the rod babbit is not out of round and correctable by fitting the rod caps.
Bob
 
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