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Old Oct 25, 2006 | 03:23 PM
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Default Whats this part called?

on my 81 there is a rubber plug in the firewall where the vac lines to/from the AC control system come thru, anyone know what it called or where to find one? the vac lines all 3 broke off on the firewall side on mine. Can it be fixed?
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Old Oct 25, 2006 | 03:33 PM
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bulkhead fitting? On my 78', the hoses just stick thru a grommet.
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Old Oct 25, 2006 | 03:46 PM
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Originally Posted by SIXFOOTER
on my 81 there is a rubber plug in the firewall where the vac lines to/from the AC control system come thru, anyone know what it called or where to find one? the vac lines all 3 broke off on the firewall side on mine. Can it be fixed?
http://www.ecklers.com/product.asp?p...dept%5Fid=1462
http://www.volvette.com/Merchant2/me...Category_Code=

Last edited by ...Roger...; Oct 25, 2006 at 03:49 PM.
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Old Oct 25, 2006 | 03:46 PM
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Nobody does a reproduction of that grommet-according to Doc Rebuild himself. Like Duke94 says those 3 vac hoses just stick in the grommet from the firewall side but from the cockpit side there are nipples IIRC. My heater valve line came out so I just wet it and stuck it back in. It works fine with no detectable vacuum leaks. Good luck.
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Old Oct 25, 2006 | 03:51 PM
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I see DWncchs has found a 3 hole grommet. I'm pretty sure it's not the one you want. I bought one like that from CC several years ago and I'll look at it when I get home to double check.
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Old Oct 25, 2006 | 03:52 PM
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Take a look at this kit from Corvette Central which has all the tubing and the grommet you may be looking for. Click on the picture for a blow up.

http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
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Old Oct 25, 2006 | 03:58 PM
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No, that is not it. It's just for the heater. If you check further, you may find they have one.
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Old Oct 25, 2006 | 11:03 PM
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I looked at my CC grommet and it appears to be exactly like the Ecklers/TLD part. Mine is still in the CC bag and I can see through the bag that the holes simply go all the way through it-and they are a much larger diameter than original vacuum lines. CC# is 303043 and has 68-82 as the application. It appears that you would need to replumb or patch the whole HVAC vacuum system to use it. The original part functions as a connector and a grommet-again, if I recall correctly.
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Old Oct 26, 2006 | 12:11 AM
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Damn, you guys are smart. Thanks Roger!
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