My 1500 is exactly as you describe below, with cannisters and vapor
lines intact. I'm debating the Weber mod, but I haven't really monkeyed
with the Stromberg enough to know what it can do. It doesn't seem like
there's a lot of room for adjustments......what kind of tweaking is
possible with the Stromberg? Are you swapping jets? What Stromberg
adjustments help take advantage of the exhaust mods? Also, who's got
the best price on Webers (if my best Stromberg efforts disappoint)?
Thanks -
M. Dietsche
> ----------
> From: Chris Kotting[SMTP:ckotting@iwaynet.net]
> Sent: Tuesday, November 25, 1997 1:31 PM
> To: 'spridgets@autox.team.net'
> Subject: RE: Emissions stuff
>
> I haven't gone the full Weber route, but based on what I have done
> (header
> exhaust system) and some logical extrapolation, here's my $0.02: (By
> the
> way, I got most of the bang for a lot fewer $ by going with a header,
> free-flow exhaust, and readjusting the Stromberg to suit. I'm still
> tweaking things, but I'm pretty happy with it.)
>
> Remove:
> Air Pump and associated plumbing. Note: Some years have the air pump
> line
> going to the exhaust manifold, which you'll be replacing with a
> header. No
> problem there. However, other years have a connection to each exhaust
> port
> in the head, which have to be plugged individually. Your '78 might be
> one
> of these. Best to check and, if you need them, get the appropriate
> threaded plugs beforehand.
>
> EGR valve and associated plumbing, which will go away when you do the
> Weber
> conversion anyway, as you'll be replacing the intake manifold. (If
> you do
> keep the Stromberg, you'll have to work out a plug for the intake
> manifold
> where the EGR attaches.)
>
> Maybe remove:
> Carbon canister and associated plumbing. whether you actually do will
>
> depend on the Weber setup. You may want to keep it just to have
> someplace
> to connect the float bowl vent (if any) to, and to keep gasoline fumes
> out
> of the cockpit. I would say keep it, others may advise differently.
> (Definitely keep it if you keep the Stromberg.)
>
> Keep at all costs:
> The PCV system (the vent line connection between the valve cover and
> the
> carb or air cleaner). The 1500 seems to depend on this set-up keeping
> a
> slight vacuum in the crankcase. Otherwise it will leak oil like crazy
> from
> unexpected places, and replacing seals will not solve it.
>
> Good luck with the changes, and let me know what the result is.
>
> Chris Kotting
> ckotting@iwaynet.net
>
> -----Original Message-----
> From: Nolan, Michael F. [SMTP:MICHAEL_NOLAN@cuusa.com]
> Sent: Tuesday, November 25, 1997 1:50 PM
> To: 'spridge'
> Subject: Emissions stuff
>
> I currently have a 78 Midget 1500. I plan on converting to a Weber
> Downdraft carb. I also plan on removing cat (no smog law) and
> replacing
> with headers and free flow exhaust. The question is
> What can be removed (pollution stuff) when I convert and is there
> anything I have to plug/add ???
>
> Thanks,
> Mike
>
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