ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1967 Mustang => Topic started by: V8_bloke_28 on October 20, 2015, 07:13:05 AM

Title: Oil cap - 67 390 w/Closed Emissions
Post by: V8_bloke_28 on October 20, 2015, 07:13:05 AM
Hey guys
What type of oil cap is original with a 67 390 gta fastback with emissions?
I have a chrome one with the red decal which has a 90 degree elbow on it.
Is that correct or is it supposed to have a straight emissions pipe?
Cheers
Title: Re: Oil cap
Post by: 67gtasanjose on October 20, 2015, 08:44:17 AM
Please supply a picture if possible.

There have been other discussions on this very subject and my current understanding is that it should be a chromed cap, straight fitting FoMoCo Block style Logo.

Look into details provided in this thread: http://www.concoursmustang.com/forum/index.php?topic=11493.msg69052#msg69052

Richard
Title: Re: Oil cap
Post by: J_Speegle on October 20, 2015, 02:35:53 PM
Quote from: 67gtasanjose on October 20, 2015, 08:44:17 AM
There have been other discussions on this very subject and my current understanding is that it should be a chromed cap, straight fitting FoMoCo Block style Logo.

+1
Title: Re: Oil cap
Post by: Bob Gaines on October 20, 2015, 04:52:54 PM
Quote from: 67gtasanjose on October 20, 2015, 08:44:17 AM
Please supply a picture if possible.

There have been other discussions on this very subject and my current understanding is that it should be a chromed cap, straight fitting FoMoCo Block style Logo.

Look into details provided in this thread: http://www.concoursmustang.com/forum/index.php?topic=11493.msg69052#msg69052

Richard
It would be relevant to list the addition of the valve cover push on adapter since the cap can not be used with out it. FYI both are available in nice reproduction.
Title: Re: Oil cap
Post by: V8_bloke_28 on October 21, 2015, 07:17:11 AM
Here's some photos
It's a push on type.
Title: Re: Oil cap - 67 390 w/Closed Emissions
Post by: J_Speegle on October 21, 2015, 06:55:15 PM
Quote from: V8_bloke_28 on October 21, 2015, 07:17:11 AM
Here's some photos
It's a push on type.

The "push on" design/style refers to the bottom plate of the breather cap as compared to the twist style used later

Yes that's the design that is often seen on small blocks with closed emissions and as mentioned in the thread listed above.


What Bob was referring to (also covered in the other thread) is the adapter that attaches to the valve cover so that that style of cap (push on base) can be used.

Push on neck required for that style of breather caps (example from a 67 small 289)

(http://www.concoursmustang.com/forum/gallery/4/6-211015170333-470835.jpeg)



Adapter visible on a 67 390 application

(http://www.concoursmustang.com/forum/gallery/4/6-211015170330-47062010.jpeg)



Without the adapter you can use (some owners do) a later twist on breather cap  like this creative owner did

(http://www.concoursmustang.com/forum/gallery/4/6-211015170331-47072355.jpeg)



Have only seen that decal used on restored 67.  Just my observations
Title: Re: Oil cap - 67 390 w/Closed Emissions
Post by: V8_bloke_28 on October 21, 2015, 09:12:24 PM
Cheers for the reply.
I do have to adapter.
So you suggest that hose and cap are for a 289 and not for my 390 gt?
Title: Re: Oil cap - 67 390 w/Closed Emissions
Post by: J_Speegle on October 21, 2015, 10:15:40 PM
Quote from: V8_bloke_28 on October 21, 2015, 09:12:24 PM
So you suggest that hose and cap are for a 289 and not for my 390 gt?

IMHO and based on my observations and experiences that is correct
Title: Re: Oil cap - 67 390 w/Closed Emissions
Post by: V8_bloke_28 on October 27, 2015, 09:52:33 PM
Could you recommend a part number for the proper cap?
Title: Re: Oil cap - 67 390 w/Closed Emissions
Post by: preaction on October 27, 2015, 10:02:32 PM
Scott drake has a very good reproduction that is Ford licensed.