 Vacuum ports, Where are they? |
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| vin man |
 Oct 17 2018, 09:45 PM
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Member  Group: Members Posts: 178 Joined: 19-February 10 From: Gilbert, Arizona USA Member No.: 11,380 Region Association: Southwest Region  |
I gave up on my Weber's and got a set of Dellortos. Had them rebuilt professionally and have installed on the new motor (1.8 built out to 2056).
I can't get them running without covering the air intakes on the carbs. I believe I have a vacuum leak somewhere besides thecarbs or intake manifolds. Wondering if I missed some type of vacuum port on the engine itself. Anyone have a suggestion on where else air could be getting into the engine? |
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| marksteinhilber |
Oct 18 2018, 12:29 PM
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#2
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Member Group: Members Posts: 229 Joined: 18-October 12 From: Foothill Ranch, CA 92610 Member No.: 15,057 Region Association: Southern California |
OOps, sorry, you got rid of the weber 44s for Dellorto 40. My read of this tuning guide shows Dels also may have air bypass valves that seem like they should be where you have vacuum ports plugged. You may need valves in there to plug the passage that is letting too much bypass air through.
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Posts in this topic
vin man Vacuum ports Oct 17 2018, 09:45 PM
VaccaRabite I'm going to assume you are using dual carbs? ... Oct 18 2018, 09:19 AM
vin man
I'm going to assume you are using dual carbs?... Oct 18 2018, 09:38 AM VaccaRabite
Dual Dellortos - yes.
Checked the intake runners... Oct 18 2018, 11:54 AM rhodyguy When you say 'covering the air intakes' do... Oct 18 2018, 10:14 AM vin man
When you say 'covering the air intakes' d... Oct 18 2018, 11:04 AM marksteinhilber Where are your air bleed or bypass screws that sho... Oct 18 2018, 11:52 AM marksteinhilber Here, this might help. http://www.redlineweber.co... Oct 18 2018, 11:57 AM marksteinhilber This guide: https://sites.google.com/site/stpsgara... Oct 18 2018, 12:29 PM rhodyguy That's great one! Thank you.
To the op. C... Oct 18 2018, 01:42 PM |
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