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#1 |
Registered User
Join Date: Jul 2012
Location: E Providence RI
Posts: 238
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Breather on 230?
Is the breather needed on the valve cover of a 230 that also has a PCV valve? I'm asking because the filter in my breather is shot and I geta bunch of oil spattering on the valve cover.
Can I replace this with an oil cap? ![]()
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1964 C/10 Longbed Fleetside, base model. (build thread) (pictures) SOLD 1964 C/10 Shortbed Fleetside, Deluxe. (pictures) SOLD |
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#2 |
Registered User
Join Date: Jan 2013
Location: Columbia, SC
Posts: 1,927
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Re: Breather on 230?
I'm sure you can just cap it because my 230 had a sealed cap. The cap gasket was shot so I bought a breather cap. Why not just replace the breather?
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My 65 C10 build: www.lugnutz65chevystepside.weebly.com Want to know more about T5 transmissions? My website has a T5 Info Page and a Step by Step T5 rebuild. |
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#3 |
Post Whore
![]() Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
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Re: Breather on 230?
Yes you can replace it with a sealed cap, but its always the "better" idea to have a breather...just so everything can breath. lol New breathers come with an element inside to keep oil from coming out.
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1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw |
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#4 |
Registered User
Join Date: Jul 2012
Location: E Providence RI
Posts: 238
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Re: Breather on 230?
Because I'm an idiot and didn't think of that.
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1964 C/10 Longbed Fleetside, base model. (build thread) (pictures) SOLD 1964 C/10 Shortbed Fleetside, Deluxe. (pictures) SOLD Last edited by Improbcat; 05-30-2014 at 03:36 PM. |
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#5 |
Registered User
Join Date: Apr 2014
Location: Rochester, MI
Posts: 206
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Re: Breather on 230?
I'm sorta going off subject here, but I replaced the grommet for the pvc yesterday on my 250. I found a generic that measured out the same as mine at O'rlys. The job was not as simple as it looks. lol
The old grommet was almost melted into the valve cover. It began coming apart as I carefully pried with screw driver... SO, I applied a little penetrating oil and had someone hold a wet dry vac as I worked. Ended up removing the upper part of rubber first; then made vertical cut with razor knife; then carefully used screw driver and began prying the inside (melted and crystallized) part out. The whole time I had visions of rubber pieces laying on top of the head. But, it was all good in the end. The generic grommet looks original and fits very snug. It took a little elbow grease and some help going in. PVC was snug as a bug. At least at this point, vacuum system is improved and the hose stands vertically. |
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#6 |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: Breather on 230?
With a PCV connected, you need some source of fresh, filtered air to come into the engine, otherwise you create a vacuum inside, which can pull seals in and then create a leak. Stock setups typically had a port that connected to the underside of the air cleaner. That is ideal as you typically won't get any oil to splash up into that area. With a breather right on the valve cover, if there is no splash shield inside the valve cover, oil will be flung into the breather, which will eventually cause oil on the outside of the valve cover.
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. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#7 |
Account Suspended
![]() Join Date: Oct 2012
Location: here
Posts: 2,408
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Re: Breather on 230?
Run a breather. The non vented cap is only for the 6 cyl valve covers with three holes in them.
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