[T3] Fuel run-on after shutoff

[Mike Fisher]

I've heard you only want 3 lbs fuel pressure.
Should choke it down to 3 lbs.

On Mon, Mar 3, 2025 at 9:21 PM <goob at roadrunner.com> wrote:

> Greetings All!
>
> I hadn't been regularly driving the squareback (1968 with '67 32 PDSIT
> Solex
> dualies) so the carbs got gunked up and it was running rough.
>
> I bought two rebuild kits off eBay, pulled the carbs, stripped them down,
> sprayed them well, blew them out with compressed air, and then reassembled
> with new gaskets and accel pumps. I did not change out the needle valves as
> they seemed to be functioning correctly after basic blow test nor did I
> check the float levels or mess with the floats beyond removing and cleaning
> them.
>
> Even with my guesstimated initial settings it fired right up and idled
> (though roughly) at around 700 rpm. Long story short, when I went back to
> the engine bay after shutting it off I was surprised to witness this exact
> same condition on the right/passenger side carb:
>
> https://www.youtube.com/watch?v=oYbMzHxFn5U
>
> In the related Samba thread I found (
> https://www.thesamba.com/vw/forum/archive/index.php/o-t--t-740201--.html )
> someone wrote that "There's a plastic piece that fits over the float hinge.
> It kind of looks right when it's the wrong way up but when it's upside down
> it stops the floats floating high enough to cut off the fuel. Worth a look
> as both carbs were apart and both now over filling."  (Unfortunately the
> OPs
> solution wasn't posted to the Samba or Youtube).
>
> I definitely did not pay attention to which side on this float hold-down
> piece was up or down when I reinstalled the floats on both carbs! Could
> this
> potentially be the issue?
>
> If not, I will consider replacing the needle valve on that side. If that
> doesn't do the trick, I can consider fuel pressure (it's 5 psi from an
> electric pump) as the Samba thread seemed to be focusing on, but for some
> reason I doubt that is the culprit.
>
> TIA for any suggestions!
>
> Dave
> 68 Square
>
>
>
>
>
>
>
> --
> This email has been checked for viruses by Avast antivirus software.
> www.avast.com
> _______________________________________________
> VWType3.Org mailing list - type3 at vwtype3.org
> To unsubscribe or change subscription options, visit:
> http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
> If you need more help, contact: gregm at vwtype3.org
>


-- 
Eugene, Oregon

http://s169.photobucket.com/albums/u236/mr_bojangles500/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.vwtype3.org/pipermail/type3-vwtype3.org/attachments/20250303/1c5bdf87/attachment.htm>