John,
Good work. Interesting and practical findings.
There is no reason why this should be a Healey only
matter. It looks like the old car world has woken up
to the moving oil co Zn standards and that the cam
follower/high wear surface probelems are emerging all
around the old engine world - US and Euro.
I think this is ging to be a very long and valuable
[$$$] thread .....
I have just started my rebuilt BJ8 on castrol GTX -
maybe 30 mins run time. But I am not going to run the
first 500 miles on it. I an very convinvced that I
need an oil with an appropriate level of Zn/about
0.1%/1000ppm. I am not up for another rebuild within
10k miles.
Question we all want to know now is which is the best
oil to use that meets the required additive spec for
the older engine designs. It seems from discussions
thus far that about 1000ppm is the historical/min
required to avoid wear, but such a level is now
defined as a cat killer and is therefore being reduced
dramatically in oils used for modern [post '70]
engines.
I will be watching and reading ....
Best, Robert.
Best, Robert.
--- John Sims <ahbn6@optonline.net> wrote:
> I just did a Yahoo search using the term "ZDDP" and
> came up with a plethora
> of articles. We are not alone. This is apparently
> affecting the entire
> collector/antique car spectrum. I have copied the
> URL for two of them.
>
> When I get another martini down (and my wife goes to
> bed so that I won't be
> accused of "being on that D@#$ computer again", I
> will try to read some of
> them and see if there are any suggestions from other
> marques on which oil
> they recommend.
>
>
http://corporate.lubrizol.com/PressRoom/MediaCoverage/pdflibrary/LNG_ZDDP.pd
> f
>
>
http://www.cadillaclasalleclub.org/forum/index.php?topic=97921.0
>
>
> John Sims, BN6
> Aberdeen, NJ
>
> www.healey6.com
>
>
>
Robert - Yellow 65BJ8
rnbmail@yahoo.com
Cell: 408-221-5244
If this email message has been received by you in error, please contact the
sender asap - Thank You.
____________________________________________________________________________________Sick
sense of humor? Visit Yahoo! TV's
Comedy with an Edge to see what's on, when.
http://tv.yahoo.com/collections/222
|