I have a slight knock at high RPMs on my 67 so I decided to drop the oil pan and check for sludge and chunks of medal. And look what I found.
When I saw these I decided I better pull the valve cover expecting to find a loose spring or worst. Well everything looks in order. All eight valves seem to have clips and the springs appear to be connected.
I guess someone just dropped these clips and didn't go to the effort to fish them out of the oil pan.
To diagnose the knocking I tried to move the rod ends and all were very tight with no movement in any directions I could detect. Except for number 4. I could move it front and back maybe 2 or 3 thous. but that all. I went ahead and pulled the rod cap to check the crank. It looked great with no wear I could detect without micing it. The inserts were still std inserts and it showed no wear I could detect. I decided to go ahead and replace the #4 insert only because it would move a little and the others wouldn't move at all.
Except for the extra parts there was very little sludge or "mud" in the pan. Overall the engine looks pretty clean inside.
I having trouble getting the images to load. It's just an "age" thing I'm sure.
Finally got the pictures to load. Operator errors!!
Last edited by Roy47 on Tue Sep 25, 2012 1:10 pm, edited 2 times in total.