Re: [Amc-list] Con Rods

[Frank Swygert <farna@xxxxxxx>]

Nothing is going on that I can tell. This engine has always had a little tick at low speeds, just like the mid 90s 4.0L that had a tick from the factory. That could be a piston skirt rocking a little near the bottom of a bore, but if it is it is only ONE bore. I believe it's a worn rocker arm pivot, but I can't figure out exactly which one. The only thing I could do is replace them all, and I'm not that concerned about it! I plan on replacing the head with an HO model (this is an 88 Renix engine) later, and possibly a 99+ intake. I can drive about 1.5 hours to the Augusta, GA pick-a-part and pick up a head for under $40, and mine needs new oil seals, possibly guides. Not much of a point in replacing the guides in this one when I can go get a slightly better head! Might have to change the guides (or use oversize valves) anyway, but will be the better head and I can continue driving until I'm ready to change it over. That should solve the rocker noise as well. 

I had the head off a few years ago, no noticeable problems. That's when it was supposedly rebuilt. Not sure if the guides were marginal but deemed okay, or the shop just used those cheap hard umbrella seals. All I know is it's using a bit of oil and it's coming from the head! Compression is still in the 140s. 

--------------------
Date: Tue, 11 Dec 2007 02:35:01 +0000
From: Wrambler242@xxxxxxxxxxx

I'd like to see what 40-50K lowbuck looks like.
how about tearing that thing apart Frank so we can take a peek at the skirts!
[hmm, that could get you arrested I guess, peaking up skirts]. Seriously, I know it is all good and the low bucks running that long is a good sign. I just wonder if anything at all is going on?

-- 
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)


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