Classic Mustangs List Archive

This read-only message was archived from a public mail list.
Mail From: Jim Karamanis (email redacted)

Recently I purchased the Black Crinkle valve covers for my 351C. I also
purchased the chrome FORD twist on breather caps to go with them. The
supplier that I obtained these items from said that this combination
will work together. Unfortunately a large amount of oil leaks out of
both breather caps. Any suggestions on what I can do to stop this?

Thanks!!

--
*****************************************
Jim Karamanis
E-MAIL: (email redacted)
HOMEPAGE: doubled.com/~dkaraman
*****************************************

This read-only message was archived from a public mail list.
Mail From: Brad Guthrie (email redacted)


Jim Karamanis <(email redacted)> wrote:

>Recently I purchased the Black Crinkle valve covers for my 351C. I also
>purchased the chrome FORD twist on breather caps to go with them. The
>supplier that I obtained these items from said that this combination
>will work together. Unfortunately a large amount of oil leaks out of
>both breather caps. Any suggestions on what I can do to stop this?

Jim,

What valve covers and breather caps did you get? Are these the Ford Motorsport
v/c's and Motorsprot breathers or some other mfg? Is the oil leaking from the
breather cap itself, thru the cap "vents", or at the cap/valve cover gasket
(since you stated twist-on, as a push-in would have a bigger rubber affair)?

I think that oftentimes a special grommet is required in the valve cover. What
is your supplier's response?

Brad Guthrie
(email redacted)

This read-only message was archived from a public mail list.
Mail From: Jim Karamanis (email redacted)

>What valve covers and breather caps did you get?
The breather caps are definitely FORD Motorsport. I don't recall what
the valve covers are. I'd have to look in the catalog to remember..
They are black crinkle and say "351 Cleveland" on them.

>thru the cap "vents"
The cap is actually not vented, but it was listed in the catalog as a
breather cap.

>cap/valve cover gasket

Yes, they do appear to be leaking at the breather cap gasket.

>your supplier's response?

Thus far I have only been able to speak with a sales person who did not
have an answer for this. I was given the number of the tech. line, but
no one picks up.

Thanks again!

--
*****************************************
Jim Karamanis
E-MAIL: (email redacted)
HOMEPAGE: doubled.com/~dkaraman
*****************************************

This read-only message was archived from a public mail list.
Mail From: Walt Boeninger (email redacted)

[from Jim Karamanis]
>>What valve covers and breather caps did you get?
>The breather caps are definitely FORD Motorsport. I don't recall what
>the valve covers are. I'd have to look in the catalog to remember..
>They are black crinkle and say "351 Cleveland" on them.
>
>The cap is actually not vented, but it was listed in the catalog as a
>breather cap.


351Cs normally have the PCV valve in one of the breathers. I *assume*
you don't have both valve covers plugged with these non-vented caps?
This would lead to crankcase pressure build up.

-------
Regards

Walt Boeninger - Nor Cal SAAC Web Site - norcal-saac.org
Email: (email redacted) 67 GT500 & Shelby T-A coupe/ 71 Boss 351

This read-only message was archived from a public mail list.
Mail From: (email redacted) (email redacted)

Is your PCV hooked up and working? Without it the crankcase pressure will
blow oil out the breathers and eventually out the front and rear crank seals.

This read-only message was archived from a public mail list.
Mail From: speegle (email redacted)

Jim Karamanis wrote:
>
> Recently I purchased the Black Crinkle valve covers for my 351C. I also
> purchased the chrome FORD twist on breather caps to go with them. The
> supplier that I obtained these items from said that this combination
> will work together. Unfortunately a large amount of oil leaks out of
> both breather caps. Any suggestions on what I can do to stop this?
>

I believe everone has given good suggestions one additional pick would
be to check the baffles on the valve covers under the breathers. Many of
the cheaper made valave covers lack the baffles and will splah and push
oil out the cars. For push in style breathers there is a fix for this
on twist in I know of nothing short of adding a shield or baffle

Jeff Speegle
MCA ANHJ

This read-only message was archived from a public mail list.
Mail From: Oscar T. Wells (email redacted)

What is the trick for push style breather caps? I'm having the same
problem...

Tom
'67 Mustang Coupe
'67 Mustang Fastback

> ----------
> From: speegle[SMTPemail redacted)]
> Reply To: (email redacted)
> Sent: Sunday, September 14, 1997 1:30 AM
> To: Multiple recipients of list
> Subject: [CM:5914] Re: Oil Breather Cap Leak
>
> Jim Karamanis wrote:
> >
> > Recently I purchased the Black Crinkle valve covers for my 351C. I
> also
> > purchased the chrome FORD twist on breather caps to go with them.
> The
> > supplier that I obtained these items from said that this combination
> > will work together. Unfortunately a large amount of oil leaks out
> of
> > both breather caps. Any suggestions on what I can do to stop this?
> >
>
> I believe everone has given good suggestions one additional pick would
> be to check the baffles on the valve covers under the breathers. Many
> of
> the cheaper made valave covers lack the baffles and will splah and
> push
> oil out the cars. For push in style breathers there is a fix for this
> on twist in I know of nothing short of adding a shield or baffle
>
> Jeff Speegle
> MCA ANHJ
>

This read-only message was archived from a public mail list.
Mail From: speegle (email redacted)

Oscar T. Wells wrote:
>
> What is the trick for push style breather caps? I'm having the same
> problem...
>
When used with aftermarket valave covers Moroso sells (or at least use
to) a breather sealer that fits in the valve covers and you press the
breather in place. These came uncut at the bottom (rounded dome end) and
I found that by cutting a smaller round hole or a 1/2 slit in the end
splashing oil did not make its way to the breather as easliy as it did
when completely removed.

Jeff Speegle
MCA ANHJ

This read-only message was archived from a public mail list.
Mail From: Oscar T. Wells (email redacted)

Thanks!! I'm going to check the PCV and if that doesn't do it, I'll
look into the sealer.

OT
'67 Mustang FB
'67 Mustang Coupe

> ----------
> From: speegle[SMTPemail redacted)]
> Reply To: (email redacted)
> Sent: Tuesday, September 16, 1997 11:50 PM
> To: Multiple recipients of list
> Subject: [CM:5992] RE: 5914] Re: Oil Breather Cap Leak
>
> Oscar T. Wells wrote:
> >
> > What is the trick for push style breather caps? I'm having the same
> > problem...
> >
> When used with aftermarket valave covers Moroso sells (or at least use
> to) a breather sealer that fits in the valve covers and you press the
> breather in place. These came uncut at the bottom (rounded dome end)
> and
> I found that by cutting a smaller round hole or a 1/2 slit in the end
> splashing oil did not make its way to the breather as easliy as it did
> when completely removed.
>
> Jeff Speegle
> MCA ANHJ
>