SPONSORED LINKS

1972 Chevy Chevelle oil drips from oil fill cap

Tiny
RICKSS
  • MEMBER
  • 1972 CHEVROLET CHEVELLE
Engine Performance problem
1972 Chevy Chevelle V8 Two Wheel Drive Manual

Have oil that drips from the oil fill cap on a 1972, 454. Drops on the header, smokes and stinks and making a mess. Any ideas how to stop it?

Thanks for any help
SPONSORED LINKS
Friday, August 27th, 2010 AT 3:39 PM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the condition of the cap if okay-check and test the positive crankcase ventilation system-start at the PCV valve
Was this
answer
helpful?
Yes
No
Friday, August 27th, 2010 AT 3:49 PM
Tiny
RICKSS
  • MEMBER
  • 6 POSTS
Oil cap is in good condition, will replace the PCV. On a 454 should there be 2 PCVs (one on each side) or one will work fine?

Thanks for the reply
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, August 27th, 2010 AT 4:03 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
There's only one PCV valve
Was this
answer
helpful?
Yes
No
Friday, August 27th, 2010 AT 4:05 PM
Tiny
RICKSS
  • MEMBER
  • 6 POSTS
Replaced PVC and oil cap, after a 15 minute drive, problem back again, drips from the oil cap?

Any help?
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 8:39 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like you need to rebuild the engine due to excessive blowby
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, August 30th, 2010 AT 9:28 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you have a gauge small enough take teh oil filler cap off and see what the pressure is. If it's above 3psi then something is pressurizing the engine like no breather or blowby. There should be a hose leading to the air cleaner with a small filter to let the engine breathe as well as pcv.
Was this
answer
helpful?
Yes
No
Thursday, December 16th, 2010 AT 4:10 PM

Please login or register to post a reply.

Related Oil Fill Cap Content

Sponsored links