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V8 distributor, vacuum pipes

OK, so this vacuum unit has 2 pipe connections, and there's a pipe which is on the top of the carb, manifold-side of the butterfly, and another pipe attached to a stub on the manifold. The latter sucks quite a lot all the time, the former less so, but might do under other conditions than I've looked at it.

on the vacuum unit, one connection faces away from the distributor like the type with only 1 pipe, the other is on the "back" of the unit.

which f***er goes where?

Haynes, predictably, offers no clue on the subject.

Reply to
Austin Shackles
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No shocks there then, Austin Pipe from top of carb goes to pipe on dizzy facing away from body. One on manifold stub is for inlet air temp control valve flap. One on dizzy facing body can be either left open or capped. Normally capped if not used, it's for vacuum retard with certain stromberg carbs. Badger.

Reply to
Badger

On or around Wed, 3 Mar 2004 15:00:12 -0000, "Badger" enlightened us thusly:

quite.

ATM, there's inlet manifold vacuum on the "suck" side of the vacuum unit. I guess all that's likely to do is advance it a tad too much.

The carb-outlet doesn;t seem to me to do anything anyway, so I might leave it as is. The carbs on mine don't have pistons in, I should add, since \i stripped 'em out as they never have to operate on petrol.

bleedin' 'orrible erratic running off-idle the last few days, messed with every bloody thing, in the end put new plugs in (old ones looked fine) and now she's as sweet as a very sweet thing with extra sweetener. Odd. I've had dud plugs before, but not quite like that - yer live and learn.

Just got to get all the settings back to normal again now.

Reply to
Austin Shackles

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