hi all
Working on my neighbors 235 that is a circa 1957 block. Had poor oil pressure
. Put in a new pump which improved things quite a bit. At this point, warmed
up it is in the 3-20 range in the garage. Not likely to cut it on a hot day
in July.
Got him to do the rod bearings with Plastigauge. Says he got .0028" . Is
that large enough to contribute to low pressure? (theory: a lot of tiny leaks
= one good sized leak). I would have hoped for more like .0015. I assume
the main bearings are comparable although he has not checked them yet.
Any thoughts appreciated! The block is in a 1946 half ton.
John
________________________________
From: [email protected] [[email protected]] on
behalf of ccpanel [[email protected]]
Sent: Saturday, February 26, 2011 11:19 AM
To: [email protected]
Subject: [old-chevy-truck] Re: Lucas Synthetic
when you run out, valvoline syntech full synthetic has the most ZINC in a
automotive oil BUT you should still use ZINC additive or continue to use one of
the "racing" oils like lucas, royal purple, and so forth-you know $$$$$$$$
why?
because our "NANNY" society thinks that ZINC is making engines last too long
and so they are removing most if not all of it from oil. Our flat tappet cams
need high zinc or extreme wear will occur...
google it if you want to learn for yourself.
mark
--- In
[email protected]<mailto:old-chevy-truck%40yahoogroups.com>, Ken
Cluley <kdcluley@...> wrote:
>
> All
> �
> Just won 6 quarts of Lucas 5w 30 synthetic oil at a car show.� Can I use
> this in the old truck for my next oil change?
> �
> Thx
> �
> Ken�
> 50' 3100 Deluxe
>
>
>
> [Non-text portions of this message have been removed]
>
------------------------------------
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