Author Topic: linkage does not open Fully the trottle ...  (Read 1206 times)

erickmarciano

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linkage does not open Fully the trottle ...
« on: April 23, 2021, 01:24:24 »
Hi guys got a 280Sl Euro 4 sp.
going over the linkage again and have a few questions ?

I adjusted the injection pump Rod with the hole in the linkage , then the venturi . i adjusted the venturi as per the linkage tour <closed just before it starts binding).

1-I disconnected the linkage going to the Engine block and . If open the linkage full by hand the pump hits the stop but the venturi still has like 3mm before it is full opened .is this normal?

2- I was never able to adjust my gas pedal properly it need a complete reset since the  settings on the firewall  were messed with.the tour does not show in how to do this . I guess we start with the top of Engine linkage then...?

thanks
Erick Marciano
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

Garry

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Re: linkage does not open Fully the trottle ...
« Reply #1 on: April 23, 2021, 02:34:39 »
Eric,


The linkage tour in the Tech Manual sets out perfectly the steps needed to set up your linkages.


https://www.sl113.org/wiki/Restricted/Linkage-tour


Unfortunately you need to be a Full Member to access this info.
Garry Marks
Melbourne/ Kyneton, Brisbane. Australia
1969 MB 280SL 5 speed RHD SOLD.
1965 MB 230SL Auto RHD Lt Blue 334G, Top 350H, 213 Leather, Tourist Delivery.
1972 MB 280CE Auto RHD 906G Blue Grey
2005 MB A200.
2006 MB B200
2019 Izuzu DMax 4x4 with Slide-on camper.
2022 Volvo XC40 Twin Electric

wwheeler

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Re: linkage does not open Fully the trottle ...
« Reply #2 on: April 23, 2021, 02:43:11 »
The Venturi lever does stay open just a bit when the FI pump is on its stop. However, that is just the tip of the iceberg. I second what Garry says and joining is a great investment in your car. The linkage tour will show you the MANY in and outs of the system. The linkage design is typical of the many functions on this car. Intricate and complex. Being a member of this group will give you the tools and info to set your car up the way it is supposed to be.   
Wallace
Texas
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6

Pawel66

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Re: linkage does not open Fully the trottle ...
« Reply #3 on: April 23, 2021, 08:42:00 »
As for your question about the gas pedal - you are a Full Member. Gas pedal work is mentioned in the Linkage Tour.

I may add: look carefully along gas pedal shaft and levers so that nothing blocks the movement.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

erickmarciano

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Re: linkage does not open Fully the trottle ...
« Reply #4 on: April 24, 2021, 00:36:53 »
I still don’t find it clear

The engine linkages are all good
Should the vertical link image have to be under tension to connect to the one with the roller ?

Let’s say from the pedal to the engine pivot and vertical linkage is all messed up how do we go about in sertting  it up ?
Thanks
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

Nicolas Aristodemou

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Re: linkage does not open Fully the trottle ...
« Reply #5 on: April 24, 2021, 02:50:51 »
Have in mind that even if you adjust your linkages as per the excellent linkage tour article there will still be a few mm at the end of the throttle travel that cannot be reached, ie throttle would open 95% of its full opening potential. I understand that your car is a euro spec manual so you wouldn’t have the split linkage on your Venturi rod.
Nicolas Aristodemou
Nicosia - CYPRUS
280SL Auto 1970 US spec (W113), 380SL 1982 R107, Citroen DS23 Pallas 1973, Triumph TR4 1963, Triumph Stag 1973, Mini Cooper S Mk1
1965, Jaguar 3.8 Mk2 1962, VW Beetle 1978 Karman Converible, 1987 Ferrari 328GTS

lreppond

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Re: linkage does not open Fully the trottle ...
« Reply #6 on: April 27, 2021, 02:16:27 »
https://youtu.be/GvgXzmgQLP0

Have you also checked out this video?   Combined with the linkage tour may help you. 
~Len

1971 280 SL
576G red/251 Beige
4 speed manual
Family owned since new (father —> son)