Joe wrote: << (yes we run a closed system) >>
So you have no catch tank? Do you ever get questions from tech folk
wondering where the heck your catch tank is?
Scott
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of n197tr4@cs.com
Sent: Wednesday, February 01, 2012 8:03 AM
To: yellow04@tr4racer.com; fot@autox.team.net
Subject: Re: [Fot] VACUUM SYSTEM
Good Morning Henry,
Seems like you draw attention to an important issue about a 'closed
system'
relative to the use of the vacuum system.
(yes we run a closed system)
What do mean by a shoddy build? Sealing all the gasket points and
neoprene/viton seals properly?
i suspect the felt rope seal is one of the worst offenders. without the
felt seal in place you can place a flashlight behind the bearing block
and see lots of light. Murphy bangs away with a special tool until the
FELT actually extrudes from the block....and doesnt seem to have a
problem.
Joe Alexander
A. R. E.
645 1st Street
Jesup, Iowa 50648
319.464.4711 (cell)
n197tr4@cs.com
-----Original Message-----
From: yellow04 <yellow04@tr4racer.com>
To: fot <fot@autox.team.net>
Sent: Wed, Feb 1, 2012 4:15 am
Subject: Re: [Fot] VACUUM SYSTEM
All this chatter about vacuum systems got me thinking. Obviously, the
system relies on having a closed crankcase. My crankcase vents to my
catch tank. I have two lines to the catch tank, one from the fuel pump
blank on the block, the other to the rocker cover. Most setups I see are
quite similar. Are you guys running the vacuum systems running a similar
catch tank setup, but without the vent?
Another thought, while I have witnessed race cars with vacuum systems
that were remarkedly free of oil drips, I have also seen cars with
vacuum systems that leak just as bad or worse than typical. I believe a
vacuum system will make a good, tight engine surprisingly dry, but can't
overcome any significant issues with a shoddy build. If the system can't
pull a vacuum because of leaks, it's not going to do much.
Henry
yellow04@tr4racer.com
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