Hi Steve, Is there a way to run an oil line to the back of the block like you can with a Cleveland? Even if temporary, it may confirm your oil pressure suspicion. Alternatively it could be the lifter bores are worn. Did the builder bush the bores? If they did, were they aligned properly in those two bores? Tighten rocker arms 1/8th turn at a time on those cylinders to see if the noise goes away. That too may confirm your oil pressure suspicion. Careful here, don’t go too far. Don’t make introductions between pistons and valves. Does the noise go away at 1,000 rpm? Is the oil pressure higher? That too may indicate your oil suspicion. Fixes? You’ll have to research oil mods for Windsors. Asa Jay Sent via radio waves
On Nov 22, 2024, at 12:56, Steve Liebenow <steven.liebenow@att.net> wrote:
All, Chasing a noisy-ish 408 roller Windsor build from Bluepoint. My son's car.....runs very strong, but at idle the thing randomly clacks from #4 or #8 primarily. No monster cam lifts (mid .500's)....no monster compression ratios (high 9s?). Good strong street build. Bluepoint sent him a new set of (same) lifters and an upgraded set of Comp roller rockers. The new parts didn't cure anything. Lash is set at 3/4 turn tight from zero lash. ( I ran my roller 331 in the Goose at 1/4 turn from zero and never a noise like we're seeing here! Std volume oil pump!) Responses across the web include "Fords are just noisy" which I say BS, otherwise every 5.0 Mustang from 75-94 would be rattling down the road! Every 94-95 351W based van....same thing......so I call BS to this! Oil pressure is rock solid at just sub 50psi. This is at 800-900rpm idle....which I believe is also unreasonable.....unless this is the engine builder's way of compensating for poor lifters???? I know that #4 and #8 are last on the oil food chain.....and potentially could be suffering......but have never heard of this on production engines. What sez the crowd??? Anyone running one of these Fords??? Thanks! Steve _______________________________________________
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