Hi Randall,
Any clues as to the identity of the American car from which they used
the larger diameter lifters.
Don Malling
Randall Young wrote:
>>Jim's comment regarding having to clear out some of the holes in
>>his rocker
>>arms makes me wonder if this is somehow connected to some of the valve
>>tappet failures other list members have had after their rebuilds.
>
>
> FWIW I agree with Mike Porter, not likely. The (deliberately) meager flow
> to the rockers is not what lubricates the tappets and camshaft. However, I
> do agree it's a good thing to occasionally check oil flow to the rockers,
> and if it's found to be lacking, disassemble and clean the rocker shaft and
> rockers.
>
>
>>I have purchased a oil pump rebuilding kit for my
>>oil pump as
>>part of my engine rebuild. I wonder if it would be worth it to
>>have somebody
>>test the relative hardness of my replacement parts?
>
>
> Given all the grief that others have had, IMO yes, it's worthwhile.
> However, the factory manual wasn't kidding when it said oil pumps last
> almost forever, so I wouldn't rebuild it unless it's outside the specs given
> in the manual (and lapping won't fix it).
>
> Also, be certain to check the end clearance when rebuilding. The book
> procedure is to lap down the body to compensate for rotor wear, so a new
> rotor and/or gear may well be too tight. You can either lap them down to
> match, or go ahead and replace the pump.
>
>
>>I am also considering a
>>mild cam and new tappets for my rebuild. Part of this addition is that I
>>assume the new cam and tappets will be hardened and not worn as I
>>am sure my original part are.
>>Just to want this thing to hold together!
>
>
> Don't know if that's still his advice, but not too many years ago Ken
> Gillanders told me it was better to have my old lifters refaced, than to buy
> new ones. See
> www.linkline.com/personal/koblinger/trsc/tech%20articles/tappets.htm
> for an article he wrote on the subject.
>
> Last I heard, he was selling sleeves to allow the use of tappets from
> another engine.
>
> Randall
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