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?'s on distributor vacuum advance/retard on 88 9kt
Posted by p-loc (more from p-loc) on Tue, 1 May 2001 00:43:06
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I think I know the basics of the stock boost retard(drops 5' of timing at onset of boost, but please correct me). Is there a vacuum advance function? There's a one-way valve inline with the ported vacuum signal line to the distributor. This check valve is marked "carb" and "distr" on each side respectively. Seems to not allow vacuum to the distributor, only boost. Is this supposed to be there? Can I eliminate this one-way valve to play with the retard function? I know everyone complains about the "mapless" ignition, but what are the factors that determine the ignition timing and advance/retard on these vehicles?
1988 9Kt (130k miles)
Posts in this Thread:
- ?'s on distributor vacuum advance/retard on 88 9kt, p-loc, Tue, 1 May 2001 00:43:06 <-- Viewing This Message
- Facts on distributor vacuum advance/retard on 88 9kt, RJ, Tue, 1 May 2001 11:38:09
- Wow, that's really interesting..., Craig, Tue, 1 May 2001 01:21:09
- Don't have such a valve on '86 and '87 9000T.., Aaron Gilbert, Tue, 1 May 2001 00:48:42
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