sortkaffekop
Senior Member
Tell me: Manual says 0,012 inch/0,3mm. When I do that it wont rotate more than 1500/perhaps. When set much closer - it runs as it should - and propel me about 120 km/h. ???
Point gap?
- Thread starter sortkaffekop
- Start date
Frank Miller
Well-known member
Point gap should be .015. Make sure you do not have two feeler gauges stuck together. Can't think of a problem that would be fixed by closing the gap. It will retard your timing but the spark will be weak.
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sortkaffekop
Senior Member
Now thinking about vaccuum unit: At idle it has no vaccuum. Then vaccuum sets in. All the way up to max revolutions, then at this point vaccuum drops. Is this correct?
flatheadmurre
Well-known member
At idle and cruise you got vacuum.
Accelerting with throttle open no vacuum.
This is if you mean manifold vacuum not venturi.
Accelerting with throttle open no vacuum.
This is if you mean manifold vacuum not venturi.
Frank Miller
Well-known member
I assume you're talking about an 8BA distributor, the one located on top not the front.
rotorwrench
Well-known member
The Holley Load-O-Matic uses venturi vacuum to advance. The vacuum can pulls against springs inside the distributor. European manufacture cars may have utilized different ignition systems components but I don't know much about that if so.
You can check the Load-O-Matic can by pulling vacuum on it with a hand type vacuum pump. Some Holley carbs have some vacuum at idle while the throttle plate is near closed with dual port vacuum. As the throttle is opened, the venturi port starts to draw vacuum. I'm not sure if the 94 type carb is set up this way but the Mercury 885 type is.
You can check the Load-O-Matic can by pulling vacuum on it with a hand type vacuum pump. Some Holley carbs have some vacuum at idle while the throttle plate is near closed with dual port vacuum. As the throttle is opened, the venturi port starts to draw vacuum. I'm not sure if the 94 type carb is set up this way but the Mercury 885 type is.
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