[DeTomaso] Pantera Oil Pans

[John McKee]

Chris,

I have the same pan and the same concern and I think it was a little over a 
year ago the same topic came up.  I vaguely remember a conclusion that the 
nylock could handle more heat than the oil can.  Are there more than one 
type of nylocks perhaps and the Machinist Handbook is referencing a cheap 
version?  I would hope that a guy who makes oil pans for race applications 
would include nuts that will not melt down.....

John


----- Original Message ----- 
From: "Chris Difani" <cdifani at pacbell.net>
To: <detomaso at realbig.com>
Sent: Tuesday, August 05, 2008 9:11 PM
Subject: [DeTomaso] Pantera Oil Pans


Guys:

I just received my brand spanking new Armando oil pan, for my 5.4LSOHC EFI 
Supercharged Modular engine that is very slowly making it's way into my 
'73L.

It's a nice pan. It's a nice, baffled pan.

But there's one thing that's got me concerned (being the detail oriented 
perfectionist that I am). And that's the nuts that secure the top baffle 
plate in place. They're nylock nuts. From what I know about nylocks, they're 
not designed for "adverse" temperatures. The nuts on my new oil pan are zinc 
plated, with nylon inserts. And according to my handy Vol 26 of the 
Machinist Handbook, the section on product specifications for nylon locking 
nuts (commonly called "nylocks"), "...the nylon locking element is effective 
up to +250°F...".

So my real question for all you engine guru's, what average temperatures can 
the interior of an oil pan experience over significant lengths of time?

Realize that I'm looking for guidelines here.

I believe that, based on the +250°F specification in the Machinist Handbook, 
nylock nuts are not appropriate for this kind of application. Or, at best, 
they're marginal, but I'd like your opinions as well.... I believe that a 
straight steel locking nut would be superior, rather than anything with 
nylon as part of it's locking mechanism.

Thanks,

Chris

Chris Difani
'73 L #5829 "LITNNG"
The Electric Pantera
Sacramento, CA
Email: cdifani at pacbell.net

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