Author Topic: Vent Hose on Breather  (Read 3567 times)

tmodel66

  • Hero Member
  • *****
  • Posts: 1212
    • View Profile
Vent Hose on Breather
« on: June 29, 2011, 02:30:09 AM »
Doe's the '69 L48 get the regular hose with a 90 degree angle in it from the breather to the right side valve cover?  When was the  metal tube introduced in place of the hose?
Daniel  
'69 SS 350/4 speed  Fathom Green--POP

Boston14

  • Member
  • ***
  • Posts: 186
    • View Profile
Re: Vent Hose on Breather
« Reply #1 on: June 29, 2011, 02:50:54 AM »
My 1969 L48 has the rubber hose from breather to valve cover.  I am not positive, but I believe the metal tube replaced the rubber hose in 1971 or 1972??

boston14
boston14

1969 SS/RS 350 Convertible
Dover White with Black Top and D90 stripe, Red Standard Interior

IZRSSS

  • Guest
Re: Vent Hose on Breather
« Reply #2 on: June 29, 2011, 02:55:16 AM »
Is your breather to valve cover hose GM stamped, or plain black?

rich69rs

  • Hero Member
  • *****
  • Posts: 894
  • LF7/M35/Z22/Z87
    • View Profile
Re: Vent Hose on Breather
« Reply #3 on: June 29, 2011, 08:42:26 PM »
Although not a L48, at least another possible '69 data point.

The attached picture shows the PCV hose /tube connection from my '69 LF7 (327 / 210 hp) engine.  Although this engine is not original to my car, it is a '69 327 Camaro engine that I personally pulled from VIN #124379N551248; engine code V1122FJ; (Flint engine, 22 Nov 1968 engine assembly date, 3 sp manual tranny) back in March 1994 when that car was being parted out.

The metal breather tube and rubber hose connecting the metal tube to the air clearner were on the engine when I pulled it.  The rubber hose has yellow GM markings on it which if you look very closely at the attached pic you can barely make them out.  

Don't know if these pieces were original to the engine at the time of assembly in 1968 or not, but they were there when I pulled it in 1994.  They are on my car today.
Richard Thomas
1969 RS

IZRSSS

  • Guest
Re: Vent Hose on Breather
« Reply #4 on: June 29, 2011, 09:50:42 PM »
Rich,

I spoke to a guy at Firewheel Classics and we came up with the same hose configuration as yours. The first pic shows a sweep and a matting valve cover grommet. The second pic shows the hose...notice two different diameters at each end. The metal sweep is sized to mate w/the grommet & rubber hose. The oposite end of the rubber hose is sized to mate w/the air breather.

Hopefully we will get more feed back to narrow this thing down. I am still a little Leary because the guy I spoke to doesn't know if this is the correct application for the L48.

We are almost certain the one pictured on my car is for a BB.

Thanks

IZRSSS

  • Guest
Re: Vent Hose on Breather
« Reply #5 on: June 29, 2011, 09:51:24 PM »
...

tmodel66

  • Hero Member
  • *****
  • Posts: 1212
    • View Profile
Re: Vent Hose on Breather
« Reply #6 on: June 29, 2011, 10:24:01 PM »
Rich Thanks for the pic. That's what I thought was correct but everybody tells me the metal pipe didn't come in to play til '70  '71 or '72.  Anyhow that's what I had to use on my car but I ordered the hose and coupling from Firewheel today just in case. I've tried several times to get good pics of L48 engine bay but me and Marty are the only one's that have one I guess cause nobody wants to share.
Daniel  
'69 SS 350/4 speed  Fathom Green--POP

Danzo

  • Member
  • ***
  • Posts: 47
    • View Profile
Re: Vent Hose on Breather
« Reply #7 on: June 30, 2011, 12:01:04 AM »
69 L48 used the full rubber hose no metal pipe.

paceme

  • Member
  • ***
  • Posts: 484
    • View Profile
Re: Vent Hose on Breather
« Reply #8 on: June 30, 2011, 12:49:16 AM »
Yep, all rubber with 90 degree bend. Hope this helps see pic below.
Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com

IZRSSS

  • Guest
Re: Vent Hose on Breather
« Reply #9 on: June 30, 2011, 01:06:09 AM »
You can take this one to the bank! This is Steve's Vintage Certified 69 L48.

Pay no attention to the alarm mounted on the left fender ;). IIRC, the original owner mounted it himself. Everything else is dead on.

Thanks Steve!

tmodel66

  • Hero Member
  • *****
  • Posts: 1212
    • View Profile
Re: Vent Hose on Breather
« Reply #10 on: June 30, 2011, 01:27:49 AM »
Thanks for all the response. I got everything ordered today so now I can put it together when it gets here.
Daniel  
'69 SS 350/4 speed  Fathom Green--POP

69glacierblue

  • Member
  • ***
  • Posts: 51
    • View Profile
Re: Vent Hose on Breather
« Reply #11 on: July 04, 2011, 03:17:50 AM »
My '69 L-48 came with the metal tube as shown in Marty's reply #4 with the red arrows.  Definitely original.  Back in 1978 I owned a 70 SS-350 (L48) and it had the exact same setup. Maybe a Norwood thing since both of my cars came from there?
Dennis
'69 SS350 Vert (X55) 4-sp.
'10 2SSRS RJT M6

IZRSSS

  • Guest
Re: Vent Hose on Breather
« Reply #12 on: July 04, 2011, 09:28:21 PM »
Steve,

I thought I had the build date of your L48. All I could find is that it was ordered early in 69 (March or April). Can you please let us know what it is. I am wondering if there is something to what Dennis stated. Perhaps an Assembly plant choice/preference.

Boston14

  • Member
  • ***
  • Posts: 186
    • View Profile
Re: Vent Hose on Breather
« Reply #13 on: July 05, 2011, 02:46:55 AM »
Here are some pictures of the breather hose on my L48.  The first one is the Original hose which was on the car when I purchased it from the original owner in 1975. The second picture is of the only writing on the original hose (it appears to be an 'S'). The third and fourth pictures are of a NOS GM hose I bought.  After a little more parts manual research, it seems as though Chevrolet Camaros changed to the metal tube on 350 engines in 1970.  Please excuse the free flashlight in the first picture, but I needed something to prop up the hose  :).
boston14

1969 SS/RS 350 Convertible
Dover White with Black Top and D90 stripe, Red Standard Interior

Boston14

  • Member
  • ***
  • Posts: 186
    • View Profile
Re: Vent Hose on Breather
« Reply #14 on: July 05, 2011, 02:48:51 AM »
Here's the second two pictures that were too large to post with the first ones.
boston14

1969 SS/RS 350 Convertible
Dover White with Black Top and D90 stripe, Red Standard Interior