Re: Connecting Rod Alignment?
Posted by Scott726 On 2008/4/6 7:15:29
I believe the rods to be correctly installed. All eight rods are numbered sequentially 1-8 starting at the front with their number stamped on the driver's side of the cap and rod as they should be. There is one rod that appears to have been "borrowed" from another engine and re-numbered which I would expect in a 78 year old engine.
So I guess my best plan of action is to pull the piston with the rod that's farthest off center, check the rod for "true" and the piston for abnormal wear. I suspect the problem stems from where the rod sits relative to the side faces of the babbitt. I had to send the #2 rod off to the shop to repair a babbitt failure in the cap (picture). I am trying to avoid new rings so I am reluctant to disturb too many pistons. This engine has only about 9,300 miles on a fresh rebuild so I was planning to re-use the #2 rings. #2 piston shows only light scuffing on the sides of the skirt and the bore looks great (no ridge at top).
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So I guess my best plan of action is to pull the piston with the rod that's farthest off center, check the rod for "true" and the piston for abnormal wear. I suspect the problem stems from where the rod sits relative to the side faces of the babbitt. I had to send the #2 rod off to the shop to repair a babbitt failure in the cap (picture). I am trying to avoid new rings so I am reluctant to disturb too many pistons. This engine has only about 9,300 miles on a fresh rebuild so I was planning to re-use the #2 rings. #2 piston shows only light scuffing on the sides of the skirt and the bore looks great (no ridge at top).
Attach file:
(17.80 KB)
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