Re: 1956 Packard Patrician Rebuild Project
Posted by Troy Taylor On 2014/10/5 17:58:59
Ok, Here we go. I got the 374 up on the engine stand. The motor is frozen.
Popping off the lifter cover, the lifters and head has burnt oil, and discoloration on a lot of pats, so this engine has seen heat.
I found a couple things that seem odd to me. The 374 was cast 12-1-55 and is stamped 5680. This Engine has ADJUSTABLE push rods, where my other engine build 1 month later stamped 1-20-56 does not. My understanding was that all 56 has solid push rods and fixed (integral guides)
The other odd thing is that one of the push rods on Cylinder 7 has a larger ball and lock nut than all the others.
so, should the rods be adjustable or solid for a 56 374? was there a running change ? Cornfused at the moment. I will get further into the heads tomorrow.
Attach file:
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Popping off the lifter cover, the lifters and head has burnt oil, and discoloration on a lot of pats, so this engine has seen heat.
I found a couple things that seem odd to me. The 374 was cast 12-1-55 and is stamped 5680. This Engine has ADJUSTABLE push rods, where my other engine build 1 month later stamped 1-20-56 does not. My understanding was that all 56 has solid push rods and fixed (integral guides)
The other odd thing is that one of the push rods on Cylinder 7 has a larger ball and lock nut than all the others.
so, should the rods be adjustable or solid for a 56 374? was there a running change ? Cornfused at the moment. I will get further into the heads tomorrow.
Attach file:
(151.29 KB)
(157.30 KB)
(131.88 KB)
(49.53 KB)
(52.18 KB)
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