Re.: weber carburetor throttle linkage

Interesting. Talk about unintended acceleration. :-)

As far as the Houston heat, I do fine in Bad Kitty as it has a custom A/C setup by RetroAir. I don't even run it full power and it keeps me cool.

Where I sweat is in my garage. I was in the garage for just 15 minutes tonight under the hood of my 190SL. Now I need a shower!

(w).

Glad they were helpful, Bruce.

As for the availability of the cable linkage, I don't know. The previous owner of the car had it installed. I'll reach out to him to see what he has to say.

As for your "surging" issue, I'm not sure that I understand. You wrote that idle jumps when leaving the line. But when leaving the line, you are under power, not idle. Can you please clarify?

My Weber setup (which took some time to really dial-in with a friend who is an expert) is almost perfectly dialed in. After syncing and balancing, we tried different jet setups before finally settling on 60 Idles and 145 Mains. But that wasn't the only thing changed when the Webers were added. My engine was completely rebuilt with new cams, light-weight aluminum flywheel, larger valves, and 2" exhaust headers. This "total makeover" approach is why I believe the Webers work so well on my car. Ironically, my crew chief told me that their shop had done 6 Weber conversions for E-Types in the last 15 years or so, and that 5 of the owners went back to whatever they had before.

Wogbe, thanks again. Dick Maury believes as I do that it is engine torque that is causing a very complicated throttle linkage on my car to open the throttles. He is putting together (building) a throttle cable and bracket set up for me. This should take care of the surging. My engine was recently totally rebuild, but other than the webers and headers it is pretty near stock. I am running the 60 idles and 145 mains as well.

Hope you are surviving the Houston Heat
Bruce

Glad they were helpful, Bruce.

As for the availability of the cable linkage, I don't know. The previous owner of the car had it installed. I'll reach out to him to see what he has to say.

As for your "surging" issue, I'm not sure that I understand. You wrote that idle jumps when leaving the line. But when leaving the line, you are under power, not idle. Can you please clarify?

My Weber setup (which took some time to really dial-in with a friend who is an expert) is almost perfectly dialed in. After syncing and balancing, we tried different jet setups before finally settling on 60 Idles and 145 Mains. But that wasn't the only thing changed when the Webers were added. My engine was completely rebuilt with new cams, light-weight aluminum flywheel, larger valves, and 2" exhaust headers. This "total makeover" approach is why I believe the Webers work so well on my car. Ironically, my crew chief told me that their shop had done 6 Weber conversions for E-Types in the last 15 years or so, and that 5 of the owners went back to whatever they had before.

Bruce, you might be getting throttle applied by the engine torquing over on the mounts. That would explain the engine pulling after you lift off the throttle. I used a series 3 XJ6 throttle cable for the Webers on my GT2 car. Any firewall mounted, solid linkage might cause a problem, most race cars with Webers use solid engine mounts. I also used the XJ6 throttle pedal. Good luck, Tom

Thanks Wogbe, What I meant by surging was that upon leaving the line, the engine races even with my foot off the pedal it races for several seconds before getting back under control of the throttle pedal. Obviously this can be scary in traffic.

Sounds like you got it done with the webers. My cost to tune them thus far had been two trips to the shop with folks that "know" or are experts has cost me about $2500.00 Expensive, but worse has not dialed them in as yet.

Bruce

Glad they were helpful, Bruce.

As for the availability of the cable linkage, I don't know. The previous owner of the car had it installed. I'll reach out to him to see what he has to say.

As for your "surging" issue, I'm not sure that I understand. You wrote that idle jumps when leaving the line. But when leaving the line, you are under power, not idle. Can you please clarify?

My Weber setup (which took some time to really dial-in with a friend who is an expert) is almost perfectly dialed in. After syncing and balancing, we tried different jet setups before finally settling on 60 Idles and 145 Mains. But that wasn't the only thing changed when the Webers were added. My engine was completely rebuilt with new cams, light-weight aluminum flywheel, larger valves, and 2" exhaust headers. This "total makeover" approach is why I believe the Webers work so well on my car. Ironically, my crew chief told me that their shop had done 6 Weber conversions for E-Types in the last 15 years or so, and that 5 of the owners went back to whatever they had before.

Glad they were helpful, Bruce.

As for the availability of the cable linkage, I don't know. The previous owner of the car had it installed. I'll reach out to him to see what he has to say.

As for your "surging" issue, I'm not sure that I understand. You wrote that idle jumps when leaving the line. But when leaving the line, you are under power, not idle. Can you please clarify?

My Weber setup (which took some time to really dial-in with a friend who is an expert) is almost perfectly dialed in. After syncing and balancing, we tried different jet setups before finally settling on 60 Idles and 145 Mains. But that wasn't the only thing changed when the Webers were added. My engine was completely rebuilt with new cams, light-weight aluminum flywheel, larger valves, and 2" exhaust headers. This "total makeover" approach is why I believe the Webers work so well on my car. Ironically, my crew chief told me that their shop had done 6 Weber conversions for E-Types in the last 15 years or so, and that 5 of the owners went back to whatever they had before.

Bruce If you send me your direct e mail address I'll send you some photos of how I did mine. I seem unable to figure out how to download photos to web sites. My method is very simple and uses the stock rod fixing point on the firewall and all the linkage back from there to the pedal.

Terry Sturgeon
moledortelus.net

Oh yes, much better then mine. Thank you for responding. Is the cable linkage available commercially. ie can I buy one.

Also, with the webers, I experience some surging when leaving the line (starting from a light etc) Idle jumps up to about 2000 rpm then backs back down. Did you experience this with your carbs and if so what was the fix.

Thanks again

Bruce

Edited on 2014-06-08 22:51:04
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Edited on 2014-06-08 22:45:38
Bruce

I have a triple Weber setup on my Series 1.5 FHC. I imagine that the key components in the engine bay are the same as or similar to your S2 2+2. I think that I can only upload one image at a time. I have five for you in total. So, please check subsequent posts.

Cheers