Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-21-2002, 05:03 PM
sounforger
Guest
 
Posts: n/a
190E Throttle action

There seems to be a lot of movement in the throttle pedal of my wifes 190E before the throttle actually opens, and looking at the linkage under the bonnet it seems to be designed that way. Is there any adjustment or modification to make the throttle action more normal, ie throttle opens when you depress the pedal, or do you get used to it?
It seems more a problem for me as I don't drive it all the time, also it's a manual gearbox and changing gear smoothly and quickly is difficult, surely the racing 190s of ten years ago weren't like this?
Reply With Quote
  #2  
Old 03-21-2002, 08:55 PM
Registered User
 
Join Date: Aug 2001
Location: Santa Maria, CA
Posts: 49
The throttle cable should be fairly tight. If it is loose where it attaches to the throttle arm it should be tightened. On my car (an 86) there is an adjustment at the end of the cable housing. It is a white plastic threaded fitting that can be turned to push the housing back to tighten the cable.

To determine where the slack is, have your wife push on the throttle while you observe the end of the cable where it exits the housing.

Good luck

Tom Elerding
Reply With Quote
  #3  
Old 03-22-2002, 07:41 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
Yes, there is adjustment!

Take off the panel underneath the steering wheel, so you can get to the pedals.
There you'll find a simple thumbscrew you can use to adjust the amount of slack - I did and now the lightest touch eases you forward.

Reading the latest 'Mercedes Enthusiast' magazine made me laugh - they run an '86 2.3-16, and on a trip to the Nordschleife had the throttle stick open at full! They sounded surprised, but I don't think many of the 190 owners here will be - it can happen if the linkage is allowed to dry up - so lubricate it while your there!
What bugs me is that the so called 'enthusiasts' called the RAC Roadside Assistance - surely any enthusiast can diagnose and fix a sticky cable..?
Then they ran off the track and hit a barrier (only minor damage though).. sigh...

btw where are you in England?

later

Russ
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #4  
Old 03-23-2002, 02:53 PM
sounforger
Guest
 
Posts: n/a
Hi Russ

I don't think the cable has slack in it, it's more that the linkage has slack that seems to be designed, for some reason. I wondered if anybody else finds this a problem, or is mine set up wrong.
When you open the throttle, if you look at the engine end of the cable there is a LOT of movement before the linkage starts to open the throttle. Initially I thought that it was set up wrong and the slack should be as the throttle is closed, to enable the throttle to close slowly when you lift your foot right off, but I don't think that is the case.

BTW the 190 has injection, the carb models may be different.

I am located in south east England in the couty of Kent, near a town called Tenterden.

regards
Reply With Quote
  #5  
Old 03-23-2002, 09:33 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
Hmm, I do know the slack you mean, I remember seeing it - the linkage has movement which doesn't adjust the throttle butterfly. I have still adjusted mine so that this is completely removed, however, using the thumbscrew - just let it tighten until the revs rised on the idleing engine, then turned it back a little. My 190 is injection (it's a 190*E* - Einspritzer = injection), but i've never looked at a carb one.


Russ
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #6  
Old 03-26-2002, 09:19 AM
sounforger
Guest
 
Posts: n/a
Hi
been thinking about it.... surely if you do that the microswitch at the other end of the cable never shuts. Does that cause any problems?
I may try and adjust out the slack, but it does seem as if it is meant to be there; my query regarding the racing 190s is that there must be a different plate which has no play in it. It may be possible to modify the existing one.

I had assumed you were in the states, but I see now you are in the UK, I wonder where?

Regards
Reply With Quote
  #7  
Old 03-26-2002, 12:05 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
Hmm.. Just went out to look, and yes! The switch doesn't close. It's for the fuel injection, to let it know when the throttle is closed. It doesn't appear to have affected my car, perhaps a slightly poorer fuel consumption, but I haven't noticed that if it's the case. I'd rather have to nice throttle response anyway, which I get. What you want to try is up to you.

By the way, you'll find pics of the racing 190s you talk about on my site here:
http://www.maylane.demon.co.uk/goodwood/

Unfortunately, there's no underbonnet pics :-(
I'm near to Dursley, in Gloucestershire, but am sometimes in Bristol too. Next week I'll be in New York :-)

later

Russ
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #8  
Old 05-28-2002, 02:50 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
For anyone still reading..

I found out what the switch on the 190 throttle does. It is for the transmission.

When off the throttle, and switch is activated, shifting from 'D' into, say, '3' will cause the car to jerk straight down into 3rd gear (presuming you're in 4th).

When on the throttle (switch not activated), the car will not jump straight into the selected gear, but instead seems to slip until you bring the revs up enough to engage that gear. Weird, but it's definitely the switch that does that, and it's very noticeable.

I don't think there's any problem in adjusting the throttle so the switch isn't activated, I have run my car like that for a few months.


Russ
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #9  
Old 05-28-2002, 06:15 PM
Registered User
 
Join Date: Feb 2002
Location: Florida
Posts: 52
I "adjusted" aka bent the arm on the switch so that after adjusting the throttle cable to where I liked it the switch will still function.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
m104 1994 e320 throttle mcdill Tech Help 15 06-29-2004 12:26 AM
Is thge throttle linkage supposed to be this way? JHZR2 Diesel Discussion 3 01-14-2004 05:52 PM
'91 190e 2.3 Engine light comes on under full throttle irieite Tech Help 1 04-06-2003 01:26 AM
190E front hub bolt patterns: 190E 2.3 vs. 190E 16v haasman Tech Help 5 04-02-2003 05:29 PM
'86, 190e, 8v, throttle valve switch kjsabat Tech Help 2 03-03-2003 01:08 AM



All times are GMT -4. The time now is 02:45 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page