« previous next »
Pages: [1] 2   Go Down

Author Topic: pcv  (Read 8734 times)

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
pcv
« on: January 17, 2008, 10:05:25 am »
I have a milky substance on my pcv valve, what is it.
Logged

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18461
    • http://www.73-87chevytrucks.com
Re: pcv
« Reply #1 on: January 17, 2008, 10:09:40 am »
Milky looking, usually it means water in the oil.  What does you dipstick look like?
Logged

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #2 on: January 17, 2008, 10:16:26 am »
The stick is clean.I did a tuneup 2 weeks ago oil change and installed a pcv valve.It had two filters in driver side valve cover.I took one out and put a pcv valve in and left the other filter in.When I did the oil change the old oil was clean but the filters had the milky stuff on them and they leaked oil so that is why I put in a pcv valve.
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19181
Re: pcv
« Reply #3 on: January 17, 2008, 10:20:17 am »
If you had no PCV before then you probably had a lot of condensate inside the engine. You can run a 15 minute flush and try changing the oil but I wouldn't be freaked out over it if the oil isn't overfull and creamy.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #4 on: January 17, 2008, 10:24:46 am »
There is nothing in the oil. Should I get a oil cap and get that filter out of there or do I need it for the pcv valve to work.
Logged

Offline Redneckchevy

  • Junior Member
  • ***
  • Posts: 697
    • Photo Bucket
Re: pcv
« Reply #5 on: January 17, 2008, 10:32:28 am »
You need the filter to work with the pcv valve
Logged
1986 Chevrolet K10 Swb "Women love the hood scoop"
1997 Chevrolet K10 Lwb "Dunno what women love"

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #6 on: January 17, 2008, 10:39:19 am »
Ok thanks.I thought it needed to take in air for it to work.
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19181
Re: pcv
« Reply #7 on: January 17, 2008, 11:54:21 am »
Definitely. PCV valve in one vc going to your main vac port at the front of the carb and a breather element in the other VC
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Dragon

  • Junior Member
  • ***
  • Posts: 642
Re: pcv
« Reply #8 on: January 18, 2008, 01:05:15 am »
Do you not have a PCV Valve on the right side valve cover???  If you do, then you only need that one, and a filter for one of the locations on the driver's side cover, and the other one can be replaced with an Oil Cap(No real need for a second PCV, especially if it isn't connected to the carb)....   Also be sure that the gromment for the filter and PCV haven't dried out, as that can allow condensation in to contaminate the PCV/Filter, and even your oil....
Logged
Dragon
08 Magnum-New Toy
96 Caprice 9C1-Who Knows
96 GMC ECLWB & 92 Chevy ECLWB
77 GMC K25 HS-Gone but Not Forgotten

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #9 on: January 18, 2008, 07:34:36 am »
I have the pcv valve in the drivers side vc and the oil fill cap (where I have the filter installed)is in the driver side valve cover too.I don't have any holes in the passenger side vc.
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19181
Re: pcv
« Reply #10 on: January 18, 2008, 10:24:15 am »
What kind of VC's do you have? Usually there is a knock out location so you can put in a grommet
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #11 on: January 18, 2008, 03:19:06 pm »
They are holley aluminum vc.They are like the old M/T vc but they say holley on them
Logged

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19181
Re: pcv
« Reply #12 on: January 18, 2008, 04:39:15 pm »
You should knock out the other hole and run the breather on the other valve cover to have proper crankcase ventilation.
Logged
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Dragon

  • Junior Member
  • ***
  • Posts: 642
Re: pcv
« Reply #13 on: January 19, 2008, 04:13:16 am »
Quote from: VileZambonie on January 18, 2008, 04:39:15 pm
You should knock out the other hole and run the breather on the other valve cover to have proper crankcase ventilation.
+1 Agreed, needs to have a balanced ventillation between the two sides...  Breather Filter on one side, and a PCV on the other. Doesn't matter which side has what, just make sure to properly connect the PCV to the Carb. The Breather also needs to have a baffle insert(Looks like a coin/plate with a screw on each side holding it in place) below it, so you aren't just sucking oil, and blowing it out all over your engine compartment.

Holley Breather Baffle:
http://store.summitracing.com/largeimage.asp?part=HLY-241-218&Prod=Holley+Valve+Cover+Breather+Baffles&img=hly-241-218_w.jpg
Logged
Dragon
08 Magnum-New Toy
96 Caprice 9C1-Who Knows
96 GMC ECLWB & 92 Chevy ECLWB
77 GMC K25 HS-Gone but Not Forgotten

Offline greenmonster

  • Registered Users
  • *
  • Posts: 193
Re: pcv
« Reply #14 on: January 19, 2008, 10:19:14 am »
So there is another hole.I should take the valve cover off and knock it out or do I have to cut it out.
Logged
Pages: [1] 2   Go Up
« previous next »