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AlexGTV

Double vacuum distributor

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Hi,

I've got a 86 turbo esprit hci and I've problems of lack of power while cold engine and backfire sometimes when lifting the throttle at high revs (warm engine).

I’ve seen that there’s bad distribution advance. The vacuum circuit seems to work correctly but checking the distribution vacuum capsule I find that has two inlets, one of them doesn’t hold the void but forcing it with a manual pump it has effect on the ignition advance. The other one keeps the void but forcing vacuum does not have any apparent effect on the ignition advance.

Anyone knows why it has two inlets? Is this the expected functioning or it needs replacing?

Thanks

 

Alex

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I've finally find out why the two inlets, one for void advance and the other for turbo

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