I guess I am still not convinced that adding a PCV system provides any
significant benefit over the original crankcase ventilation system on an
engine in good condition. The ventilation tube from the crankcase & valve
cover is connected to a negative pressure inside the air cleaner which should
be able to keep up with the blowby gases in the crankcase on an engine in good
condition. For me the only unknown is at what cylinder leakage rate does the
blow by gas volume (CFM) exceed the flow capacity (CFM) created by the
negative pressure in the air cleaner.
Gary Hodson
-----Original Message-----
From: Ed O'Neal <ed@wadsworth-eng.com>
To: healeys <healeys@autox.team.net>
Sent: Fri, Feb 3, 2012 7:29 am
Subject: [Healeys] PCV valve
I'll step into this discussion. An old racing tip. Weld a small tube
3/8"-1/2") into one of the exhaust header pipes inclined 45 deg to the
xhaust flow. The other end of the tube is connected )via some route) to the
rankcase cavity. The connection at the exhaust hearer will act as a venture,
rawing blowby gases from the crankcase, achieving a slight negative pressure
herein and reducing oil leaks.
Any thoughts?
Red Flash
uggested annual donation $12.75
rchive: http://www.team.net/archive
orums: http://www.team.net/forums
Healeys@autox.team.net
ttp://autox.team.net/mailman/listinfo/healeys
Unsubscribe/Manage:
http://autox.team.net/mailman/options/healeys/warthodson@aol.com
-----Original Message-----
From: Ed O'Neal <ed@wadsworth-eng.com>
To: healeys <healeys@autox.team.net>
Sent: Fri, Feb 3, 2012 7:29 am
Subject: [Healeys] PCV valve
I'll step into this discussion. An old racing tip. Weld a small tube
3/8"-1/2") into one of the exhaust header pipes inclined 45 deg to the
xhaust flow. The other end of the tube is connected )via some route) to the
rankcase cavity. The connection at the exhaust hearer will act as a venture,
rawing blowby gases from the crankcase, achieving a slight negative pressure
herein and reducing oil leaks.
Any thoughts?
Red Flash
uggested annual donation $12.75
rchive: http://www.team.net/archive
orums: http://www.team.net/forums
Healeys@autox.team.net
ttp://autox.team.net/mailman/listinfo/healeys
Unsubscribe/Manage:
http://autox.team.net/mailman/options/healeys/warthodson@aol.com
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Suggested annual donation $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
|