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sierra dizzy on GTI motor

Posted: Tue Sep 30, 2008 10:38 pm
by mad zook
Hi all
I have just done a GTI conversion in my zook and I'm using a sierra dizzy with the angle drive and a micro tech computer the manual says that I need to disable my vac advance but only shows how to do it for the GTI dizzy how do I remove the vac advance in the sierra dizzy

heres some pics of my motor

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thanks daz

Posted: Tue Sep 30, 2008 11:40 pm
by Moph
Vacuum advance is already disabled. See the diaphragm coming off the side of your dizzy on the block side? That's the vacuum advance diaphragm. There's no vacuum hose on yours so it's not working.

That loom looks like it must have been fun to sort out :?

Posted: Thu Oct 02, 2008 4:24 pm
by BlueSuzy
Wtf!!! How much wiring is all over the place!!

Posted: Mon Oct 20, 2008 6:15 pm
by Adsport
BlueSuzy wrote:Wtf!!! How much wiring is all over the place!!
yer, goddamn !


as stated, you simply just dont hook the vacum advance up to the diaphragm pot and it wont work.

Posted: Wed Oct 22, 2008 9:30 pm
by crackatinny
i may be wrong, but i was under the impression the guts must be welded up / locked as there are little fly weights in there to adjust the timing acording to speed (then the vac advance fine tunes it again to adjust for load).

good choice btw to use the angle drive. i went for the hybrid suzuki / mazda turbo dizzy and have regretted it ever scince. i will be investing in the angle drive kit soon.


EDIT: just had a better look at ya pics, be careful having your top radiator hose there, it is easy to get a airlock and it puts alot of pressure on the radiator. i made some copper pipe to go around the other side of the head and it works a charm.

dizzy

Posted: Sat Oct 25, 2008 12:54 pm
by sic_zook
u must weld up the flyweights cause the microtec does all the advancing n retarding