Re: Motor rebuild questions

Posted by Owen_Dyneto On 2017/3/30 9:42:47

Hi Dave:

Not an expert here either, I've always rebuilt with rods correct for the engine as originally built. But I do have a set of '34 320 engine rods and will take a look later and see if I can spot the difference between the even and odd numbered ones.

-------------------------------------------------------

PS: Good memory Dave! Examining my spare '34 Eight rods (last year for babbitt) I cannot tell if the small end eye is symmetrical with the rod centerline or not, but surely the pin bushing is installed with an offset to the front of the engine on the odd-numbered rods, and obviously the opposite on the even #s.

Re Ernie's comment on babbitt bearing life, my rods went 88,000 miles before I heard the first hint of a rod knock at cold startup - so I stayed with babbitt for the rebuild.