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#23983 10/10/2004 2:39 AM | Joined: Aug 2004 Posts: 47 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2004 Posts: 47 | Purchased from ChevyDuty a new vacuum advance for my '51 chevy 1/2 ton with a 1955 235 engine.
The original unit in the truck has the flange (with the hash marks) at right angles to the vacuum chamber, whereas the new unit had it inline with / coming straight out of the chamber. My mechanic and I couldn't get the new unit to sit properly, w/out it hitting the engine.
ChevyDuty says their unit is for 1947-1962 ... so whats wrong with this picture? Do I have to somehow modify the vacuum advance unit...or is there another style with the angled flange...and if so...where does one find it
Your help would be most appreciated.
thks,
Bart | | |
#23984 10/10/2004 3:45 AM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Bart, Here is a photo of a truck vacuum advance mechanism. It is upside down but you can see the angles. The automobile mechanism has different angles. [img] http://home.nycap.rr.com/lederman/images/vacuumadvance.jpg[/img] Tim | | |
#23985 10/11/2004 12:16 AM | Joined: Aug 2004 Posts: 47 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2004 Posts: 47 | Tim,
Thanks so much...that explains it i think. The vacuum advance in my 1/2 ton is automobile /wrong one. No wonder we couldnt make the new one line up in the same place.
we'll have another go at it.
Much appreciated.
Bart | | |
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