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vacuum cap size

89Mirageman

Well-known member
Joined
Jul 5, 2006
Messages
2,502
Location
Stantonsburg, NC
I know this isn't what you're asking. But it's a lot cleaner to remove those barbs altogether and tap the holes and then install a SS set screw.


 

tektic

Well-known member
Joined
Dec 19, 2012
Messages
1,497
Location
ronkonkoma, ny
Yeah. It is... but I'm not planning on taking the tb off to do so. Maybe next time around. Ill just measure when I get home.
 

pot

Staff member
Joined
Oct 28, 2003
Messages
1,577
Location
Fayetteville, NC
If memory serves me its one of two sizes:

5/32" (4mm) or 7/32 (5.5mm)

However, I've been meaning to perform the same mod Chris (89Mirageman). Man, it looks good!
 
Last edited:

strokin4dr

Well-known member
Joined
Aug 30, 2005
Messages
2,770
Location
Savannah, GA
I've done the same thing on both my cars. Much cleaner and I don't have to worry about caps cracking and leaking
 
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