Re: 251 Valves Stuck?


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Posted by Jay B. Good on October 02, 1997 at 01:08:04:

In Reply to: 251 Valves Stuck? posted by Scott Gore on October 01, 1997 at 14:25:01:

: Did a compression test on my 2+ year non-running 251 last weekend. 3 cylinders had NO compression that we attribute to stuck valves. After changing oil/filter/plugs and hooking up a temporary gas supply, we attempted to start with the possibility that the valves might become unstuck with a little usage. Wouldn't start, but 1 or 2 cylinders would fire and succeeded in filling up the garage with white smoke. Always a small amount of humor in these situations. Ordered the factory shop manuals last week. I glanced at them last night and wasn't impressed. On first pass, didn't see a 251 or NP420 addressed in any meaningful way. How to lube yes, spec's yes. Teardown, repair, and reassemble NO. So, here's some questions:

: 1.) Repair Manuals - Are there a decent set of shop manuals out there and if so, what are they and where do I find them?
: 2.) Engine - (Obviously the manuals would help me here). OK, all the moving parts are in the block. Take the engine out now and diagnose or will taking the head off be worthwhile? I haven't looked to see if the oil pan can be dropped without a heroic effort.
:
: Any other suggestions?
:
: Tks - Scott in Dallas
Scott
My reprint Dodge Truck Shop Manual for the C1 Series
covers the transfer case pretty well with lots of
exploded pictures showing every part right down to
the lock washers and they're even named. I can't find
a number for the transfer case in the manual though.
Can't help you with the 251 problem. My manual covers
the 230. Thanks for the Atta Boy and pat on the back
you directed to Joe and my page earlier in a forum post



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