Brought to you in part by:


Shop Eastwood for your Auto Restoration Needs!

  Mustangsandmore Forums
  '64 1/2 to '73 -- The Classic Mustang
  PCV Question

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   PCV Question

Posts: 153
Registered: Sep 2002

posted 09-22-2002 11:26 AM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
I've also been reading all the threads concerning PCV and I'm a little stumped.

I am absolutely, positively sure the PC valve and my breather/oil filler cap, which also has the hose to the base of the air cleaner, are both on the driver's side valve cover of my '65 289. The engine parts aren't here for me to check. All the threads I've read seem to indicate the breather should be on the other valve cover from the PC valve. Does it matter?

Also, should I hook the hose back up to the base of the air cleaner from the oil filler cap or get a hoseless breather?


IP: Logged

V8 Thumper

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 09-22-2002 11:45 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
It dosen't matter which which valvecover has the PVC in it, but I've never seen one in the driver's side... It would seem to me that the breather should be opposite the PCV. The point of the system is crankcase ventilation/evacuation... if both were in the same valvecover, I'd think the PCV could simply be drawing atmosphere thru that valvecover via the open element breather... anyone agree/disagree?

I run a hoseless breather myself... un-clutters the look of the motor some

IP: Logged

Dave Gibson

Posts: 7549
From: Norfolk, Virginia, USA M&M#166 MCA#47921
Registered: Aug 99

posted 09-22-2002 11:57 AM     Click Here to See the Profile for Dave Gibson   Click Here to Email Dave Gibson     Edit/Delete Message   Reply w/Quote
Dead head,
On '65 and '66 289s, the breather normally is not hooked up to the base of air filter or base of the carb. The breather is normally on the drivers side valve cover at the front of the engine. The PCV valve is normally on the passenger side valve cover closest to the fire wall and is hooked up via a hose to the base of the carb.

Dave & Terri

Poison Ivy (Dave's)
'65 Fastback Modified 289 4V, C-4, dual exhaust, styled steel wheels, rally pac, A/C
'02 Explorer XLT, Black, 3.73:1 limited slip, class III tow package!

IP: Logged


Posts: 2623
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 09-22-2002 10:30 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
All early Mustangs equipped with a PCV had it mounted in the passenger side valve cover. Some of the California cars had a breather cap with a hose to the air cleaner. The breather was mounted in the driverside valve cover. BTW, the breather cap with a hose was butt ugly.


IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Mustangsandmore Front Page

Copyright 2003, Steve LaRiviere. All Rights Reserved.

Ultimate Bulletin Board 5.47d

Amazon Honor System Click Here to Pay Learn More

[Acronyms][Calendar][Chat][Classifieds] [Members' Pics]

[ Bookstore] [ T-Shirts][Tech Articles]