[DeTomaso] Alternate dip-stick location
JDeRyke at aol.com
JDeRyke at aol.com
Fri Nov 1 17:17:02 EDT 2013
Its possible to get the dipstick back as far as the rear of the drop-sump
while still giving the correct readings. This puts the dipstick emerging from
the pan between #3 and #4 exhaust; I chose to position it on the passenger
side rather than the gas tank side for less severe bends needed in routing.
It can then come up to the engine side-cover and if the rear quarter-window
glass is gone, the dipstick can be checked without opening the decklid. I
did this a few years ago using a spare Aviaid pan; I suggest you start with
such a pan and not risk trying to re-develop a successful racing pan. The
Aviaid road-race pan is highly developed and holds 10 qts- no reason to increase
the volume beyond that. In fact, 8 quarts seems to work just fine on
non-pro-racecars. Most other aftermarket pans are drag race pans which concentrate
on other parameters. Armando's race pan is a virtual copy of the Aviaid (he
worked for them) but is slightly cheaper.
Its also possible to adapt the dipstick from a 351-W equipped van which is
around 18" too long, so it could be attached to the stock front of the 351-C
block and routed about anywhere within reason, without needing to fabricate
a whole new pan hookup. But if all you're trying to do is avoid having
e-brake cables touch the pan bottom, longer custom cables routed differently
would certainly be simpler and wouldn't risk compromising oil supply to the
bearings with an unproven pan design.
As far as an oil jet from the right side oil gallery plug, that was
successfully done by Bud Howar a few years ago, and he found its not as simple to
actually do it as to decribe how it might be done. The drilling necessary to
get an oil-jet to hit the gear mesh is a fairly severe compound angle and
drilling an .020" hole in a steel setscrew-plug costs some drill bits and even
requires careful positioning of the edges of the modified hex driver hole
in the setscrew. Bud finally managed to do it, though. There are photos of
the effect in the POCA Newsletter. There are several other, easier ways to get
the same gear-mesh lube delivery, though- also documented in the
newsletter. None are likely to be vital to cam or gear life.
Finally, if you want some good reading on harmonic balancers, there's a
14-pg pdf file available on BHJ's web site called 'The Balancer White Paper'
that covers theory & practice of most types of harmonic crank balancers. I
and some other owners use the Romak elastomeric balancer for 351-Cs with
satisfactory results. Good luck- J Deryke
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