Re: ihc-digest V5 #53

[<hofs@domain.elided>]

>RossWal wrote:
>> 
>> Bryan (I hope this is going to Bryan, it was hard tell who was who on the
>> posting),
>> 
>> I have the same problem on my 73 345, though the bottom end was replaced w/
>> used  before I bought it so I don't know the year of my bottom end. Anyway,
>> too high a rev down the freeway, and a clatter like you wouldn't believe
>> develops. Only happened twice, now I know the limits.

Bryan, I believe, didn't get the lifter clatter that is built into (not 
by design) the ihc V8's that warns us that the oil level is too low or 
that for some reason the oil is not getting to the lifters. Many of the 
responses to Bryan's post were bandaids to this problem, but not, in my 
opinion to Bryan's problem. My guess is that your clatter occurs when too 
much oil is up in the heads, and not enough left in the oil pan to be 
picked up by the oil pump. Bryan's problem seems to be that the oil is 
there (no clatter) but the pressure suddenly is reduced while maintaining 
the same rpms (a bothersome occurrence) 
>> 
>> I've heard the oil pick-up for the pump was changed in about 75 or so, maybe
>> to resolve this problem.

Having had numerous V8 ihc vehicles pre 75, I never experienced this 
phenomenon, but I won't generalize based on my experiences. 

Howard, do you know anything about an oil pickup fix?
John


John Hofstetter
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Owner of 79 Scout Terra "It's a legend"