hey, the vacuum diaphragm comes with a bulge. I want to make sure I've been replacing mine properly. Does the big bubble (bulge) go 'out' when its installed correctly?

Thanks

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79 240D 123.123 daily-driver
03 F250 7.3 PS SD CC (lightly modded)
82 CE 'vette (for sale)
73 dart 318, 73 charger w/'68 383 (both for sale)

See if this link helps, post #1.

http://www.peachparts.com/shopforum/diesel-discussion/164453-vacuum-pump-diaphragm-replacement-pix.html

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1995 E300D 335K Miles