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on 20/1/2003 6:02 AM, Steven Ayres at comwest@att.net wrote: > OK, I've finally had a look at the exploded views of the fuel pumps. Just > for everyone's info, there are at least three for carbs, all shown in > Haynes. First was the cone-top, plastic-cover style with the flat, > full-diameter screen (Type A, I'll call it). That was superceded in '66 (for > the 1600) with the flat-top multiscrew style, which has a small, high-cone > internal filter (B). Later (aftermarket?) there's the steel-domed style with > a large low-cone-shaped screen, again full diameter (C). OK, the one that is installed on my car is Type C. > It may have been misreading on my part, but I wonder whether we in this > thread have been sometimes referring to two different springs. There's the > spring under the diaphragm, and there's the return spring on the rocker arm, > which gets the mechanism out of the way. I'd expect that both of these > matter to fuel pressure. We should also try to be clear on which pump style > we're talking about. The spring that I put the washer under was the one that operates on the diaphragm, I didn't do anything about the other spring. As far as I know the other spring keeps the arm on top of the pushrod, otherwise the arm might bounce around. Ben Doughney '75 1200L '63 1200 - Ringo '71 1600TL http://members.tripod.com/~superkafer/ ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/