[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 11 Feb 2005 at 18:24, James Montebello wrote: > I'd offer that it's a good idea to completely remove the vac canister > if you're going to use a vac dizzy w/o the vac. If you leave the can > in place, you can get more timing jitter from the vac diaphram flapping > around undamped and varying the timing randomly. Plugging the vac port > helps some, but removing the can completely is the best thing to do. I don't believe this is the case with any of the Bosch distributors. On the early ones, there is no spring in the canister, but the spring in the dist will push the mechanism to one extreme, which will be constrained by the can. If you remove the can, there is no longer a constraint. It's possible that the breaker plate would find it's own end point, but that might not be stable over time. On the late vac cans, the spring is in the can, so removing the can leaves the breaker plate free to float anywhere it pleases. I recommended plugging the vacuum ports not because I thought it would help the adv stay stable, but just to make it clear that it should not have a hose connected to it. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~