 Dellorto Carbburetors., Am I missing something? |
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| Petepat |
 Dec 31 2025, 12:48 PM
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Member  Group: Members Posts: 74 Joined: 1-December 19 From: Florida Member No.: 23,691 Region Association: None  |
So I'm just overhauling my carbs on my 1.7 engine and looking closer with them out I notice there are 2 small pipes, not apparently doing anything by letting air into the manifold!! Question should these have caps on them? I get a lot of pop and bangs from the exhaust.
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| Osnabruck914 |
Dec 31 2025, 02:05 PM
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#2
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Member Group: Members Posts: 193 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States |
I agree they should be plugged, but one of them should be feeding the vacuum advance on your distributor. If you are running a purely mechanical advance dizzy, then that does not apply of course, but then you are denying yourself a much smoother acceleration experience. My advice is to utilize that available vacuum!
Osnabruck914 |
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Posts in this topic
Petepat Dellorto Carbburetors. Dec 31 2025, 12:48 PM
Superhawk996 Yes they (vacuum ports) need to be plugged.
Look... Dec 31 2025, 01:35 PM Jack Standz These are 45mm Dellortos, but they work the same a... Dec 31 2025, 03:50 PM Jack Standz Photo Dec 31 2025, 03:50 PM Jack Standz Both fittings in this photo (from the same carb) a... Dec 31 2025, 04:10 PM
porschetub
So I'm just overhauling my carbs on my 1.7 en... Dec 31 2025, 05:44 PM |
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