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106619 Posts in 12428 Topics by 4790 Members
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| | |-+  69 Z/28 Gas Cap
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Author Topic: 69 Z/28 Gas Cap  (Read 1900 times)
m22mike
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« Reply #15 on: October 27, 2011, 07:59:50 AM »

Forgot the back.

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X66 L78 M22 4.10 Deluxe Threads, PNT 10/10, Red Hockey stripe
68Zproject
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« Reply #16 on: October 27, 2011, 11:40:11 AM »

68Z, did you do anything to your part before you put it in the evap-o-rust?
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68Z28
canadair
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« Reply #17 on: October 27, 2011, 01:56:53 PM »

my 69 is exactly the same except anti surge is not there but vented is would this also be correct
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m22mike
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« Reply #18 on: October 27, 2011, 02:21:46 PM »

Canadair
 No. The correct assy line cap is the one I posted, the very first design also had a small hole on the back poppet cover.
The cap you have is directly vented to atmosphere and most likely piss gas out when you start out with a full tank.
Here is one on ebay now   

http://www.ebay.com/itm/1967-1968-1969-CAMARO-NOS-GAS-CAP-/250805683344?pt=Vintage_Car_Truck_Parts_Accessories&vxp=mtr&hash=item3a652f0490

I think it is for station wagon applications, they guy has it listed wrong.

The whole purpose of the Anti surge cap is to maintain a very slight pressure in the tank to avoid splash out, and it can still happen if your topped off, and the tank is very hot, and you launch hard. But not likley.
 Untill you find a OE cap I would just run the laster GM cap with the ears, there cheap and work the same.

Mike

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X66 L78 M22 4.10 Deluxe Threads, PNT 10/10, Red Hockey stripe
canadair
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« Reply #19 on: October 27, 2011, 04:39:21 PM »

thanks m22mike just found the correct one you have pictured.
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