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Original Message
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| RE: So, the noise started after ~1K miles on rebuild? [n/m] |
| By dave - 04/26/2004 8:35:00 PM; IP 68.198.129.110 |
| Aprox,1K it was before I put the car away for the cold season here in NY. It seems it started slight then I pulled the stamped steel valve covers to install a set of the cast aluminum covers and re-visited my valve djustment. I have hydraulic lifters with the adjustable Ford rocker assys which I have had on other FE's I usually adjust them till there is no movement of the pushrod and add 1/4 turn. Someone on this forum suggested that since the lifters have a lot of play 1/4 turn was probably not enough. My jobber had a box of 4 lifters sitting on the shelf so I picked them up and measured the plunger travel which came out to .180. I purchased a set of new clevite rocker assys and a new set of pushrods and got back to some serious wrenching to try and figure out where this noise is comming from. I started by pulling the valve covers and inspecting the top end. No loose rockers or pushrods. I removed the rocker assys and found the #8 Exhaust rocker felt like it was binding. I removed it and found evidece of un-even wear, slight but also some galling in one spot. I installed the new rocker shaft assys and measured with one of the old rockers how many turns would equal 1/2 plunger travel. I found that two full turns of the adjuster = .090 so I adjusted the screw two full turns following the sequence in the 67 shop manual for adjusting 427 solid lifters at three different locations on the balancer. I installed a cut out valve cover and started the engine to observe oil flow at first everything was ok but after a few mins the tick/knock returned. The next day I really hit it hard, I pulled the intake and inspected the lifters.....they looked good.....replaced them since I made the trip. I installed a set of new pushrods, replaced the intake gasket a FELPRO CJ gasket that had failed by the exhaust crossover on both sides. Re-installed the intake and the new rocker shafts and........after a few mins of running the noise is back. The next day I tried a different approach since I turned up no failed parts that stopped the noise and removed the flywheel insp cover and found that the starter I changed when I did the valve covers did not clear the ring gear on the flywheel. Pulled the starter notched the nose to provide clearance, re-install the starter and fire it up. Sounds much better, I wasnt covinced that was it because the noise is not a grinding sound. Anyway gotta sleep sometime so the next morning I take it out for a test drive and still it makes the f333ing noise. I have leaned on a lot of stuff to try and nail this sound and the closest I find and interpet is the rocker arms moving sideways on the shaft. When you hear it, its so severe that I'm stunned I cant nail the source. I know sounds thru an engine can play tricks on ya anybody been here and back Please help! |
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