Author Topic: 4053 Carb question.  (Read 5063 times)

z28z11

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Re: 4053 Carb question.
« Reply #15 on: February 28, 2013, 01:58:24 AM »
"3496" should equate to the 349th day of '86, M6 on the box is probably December '86. Stored in the house since purchase, taking up space in my office until I finally decided to make the swap -   
1968 Z28 M21/U17 BRG/W
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06

firstgenaddict

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Re: 4053 Carb question.
« Reply #16 on: February 28, 2013, 02:15:33 AM »
The base plate differences are not so minor... most guys who have restored a higher end Z know the early baseplates don't have re-enforcing and are prone to break an ear. Original baseplates are not all that easy to locate.
James
Collectin' Camaro's since "Only Rednecks drove them"
 
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68camaroz28

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Re: 4053 Carb question.
« Reply #17 on: February 28, 2013, 02:53:03 AM »
The base plate differences are not so minor... most guys who have restored a higher end Z know the early baseplates don't have re-enforcing and are prone to break an ear. Original baseplates are not all that easy to locate.
And can be expensive if someone knows what they have......
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
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z28z11

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Re: 4053 Carb question.
« Reply #18 on: February 28, 2013, 04:44:16 AM »
I don't doubt it.

Good thing both of my Z's have good ones. I'm using the repop plate on the 4346 build - it started as a center section only anyway, and visually it looks pretty good. I need to check out the part number cast on the throttle plate to see if it matches the Holley parts listing I have. You do have to look pretty darn close to see the differences -

Regards,
Steve
1968 Z28 M21/U17 BRG/W
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06

69Z28freak

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Re: 4053 Carb question.
« Reply #19 on: March 11, 2013, 06:48:57 AM »
Hi Gary here is a picture of a 4053 I found that has just been restored. I just had it on the dyno and it works great.





Mike 1969 Grandma Camaro

woodsman1172

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Re: 4053 Carb question.
« Reply #20 on: March 11, 2013, 07:40:31 AM »
That is the later, thicker baseplate Mike.

69Z28freak

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Re: 4053 Carb question.
« Reply #21 on: March 11, 2013, 08:30:40 AM »
Thanks Steve good to know.  How does the rest of the carb look?
Mike 1969 Grandma Camaro

69Z28

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Re: 4053 Carb question.
« Reply #22 on: March 11, 2013, 05:30:48 PM »
I can't tell from the pics but is the nipple on the dashpot straight or curved? What really should it be?



Hi Gary here is a picture of a 4053 I found that has just been restored. I just had it on the dyno and it works great.






GaryC

'UNRESTORED' 1969 Cortez Silver X33D80 Z28

69Z28freak

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Re: 4053 Carb question.
« Reply #23 on: March 12, 2013, 03:43:19 AM »
Hey Gary where do I find the nipple on the dash pot?
Mike 1969 Grandma Camaro

69Z28

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Re: 4053 Carb question.
« Reply #24 on: March 12, 2013, 04:09:33 AM »
Mike. The dash pot is an older mechanics term for the vacuum pull off on the passenger side of the carb. You know...the thing of the thing of the thing where you have the little vacuum hose hook up for the smog stuff?!! On the OEM's it is a curved, and it looks like so far all the replacement and new carbs are straight.

The thing in the middle of the pic. This one is curved.
GaryC

'UNRESTORED' 1969 Cortez Silver X33D80 Z28

69Z28freak

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Re: 4053 Carb question.
« Reply #25 on: March 12, 2013, 06:23:01 AM »
Thanks Gary. I will check tomorrow. I was told it is an original carb that was rebuilt and refinished.
Mike 1969 Grandma Camaro

MyRed67

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Re: 4053 Carb question.
« Reply #26 on: March 12, 2013, 06:58:51 AM »
   New "Curved-neck" Choke Pull-offs are out there, here's one;
http://www.ebay.com/itm/1966-70-CHOKE-PULL-OFF-HOLLEY-CURVED-PIPE-NOS-CHEVELLE-CAMARO-CHEVY-II-FULL-SIZE-/251030805006?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a729a1a0e&vxp=mtr
    These are one "Quick glance" sign to original or not.
1967 Camaro  LOS  11A
Original Engine   Z - Tribute
Mike C.    NW - Illinois

rszmjt

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Re: 4053 Carb question.
« Reply #27 on: March 12, 2013, 03:51:23 PM »
FWIW - Most Later issue repo & service date 4053 carbs also have the wrong accelerator pump body & retainer screws and accellorator pump adjuster bolt/spring setup. Original production ine installed 4053 housings use clutch screws and the adjuster bolt never used a nyloc nut , they had a screw the other way with a t nut setup against the pump housing arm. Also the base idle adjustment screw was a different design.

1968RSZ28

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Re: 4053 Carb question.
« Reply #28 on: March 12, 2013, 04:33:39 PM »
Hey Gary where do I find the nipple on the dash pot?

Thanks Gary. I will check tomorrow. I was told it is an original carb that was rebuilt and refinished.

Mike,

The nipple appears straight in the photos you posted.

Paul

zman1969

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Re: 4053 Carb question.
« Reply #29 on: May 22, 2013, 12:42:36 PM »
FWIW - Most Later issue repo & service date 4053 carbs also have the wrong accelerator pump body & retainer screws and accellorator pump adjuster bolt/spring setup. Original production ine installed 4053 housings use clutch screws and the adjuster bolt never used a nyloc nut , they had a screw the other way with a t nut setup against the pump housing arm. Also the base idle adjustment screw was a different design.
can you show a picture of this please?
Rich

69 RS/Z DZ302 Daytona bumble bee
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