Connecting Rod Alignment?
Posted by Scott726 On 2008/4/5 20:22:02
Packardites,
As you can tell from my previous post (crank shaft end play) I have the bottom end opened up on my 30' 726, I'm trying to track down a transient knock. Best as I can tell with the engine together, I think my end play is between .004" and .005". The rod bearings all plasti gage at .002" and everything else on and around the crank shaft generally looks good.
Today I discovered a couple of my connecting rods are not centered on the wrist pin (photo). The Packard service manual says that "Mis-alignment produces knocks and vibration." It shows an alignment fixture but not a whole lot else. What's the deal with connecting rod alignment? Is there a specification and who does this kind of work?
Thanks in advance,
Scott
Attach file:
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As you can tell from my previous post (crank shaft end play) I have the bottom end opened up on my 30' 726, I'm trying to track down a transient knock. Best as I can tell with the engine together, I think my end play is between .004" and .005". The rod bearings all plasti gage at .002" and everything else on and around the crank shaft generally looks good.
Today I discovered a couple of my connecting rods are not centered on the wrist pin (photo). The Packard service manual says that "Mis-alignment produces knocks and vibration." It shows an alignment fixture but not a whole lot else. What's the deal with connecting rod alignment? Is there a specification and who does this kind of work?
Thanks in advance,
Scott
Attach file:
(21.17 KB)
(19.86 KB)
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