Pagoda SL Group
W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: Hernan on December 31, 2024, 22:03:56
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I would like to get some advice on how to adjust throttle position sensor and cleaning on my 71 Pagoda.
Thank you
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Hello!
For the idle/linkage/throttle adjustment the most important is to go through the full linkage tour. You are a Full Member, so you have access to all the resources in Technical Manual, which is the critical one.
Linkage tour is there: https://www.sl113.org/wiki/Restricted/Linkage-tour
Another source of information on this Forum is the Search function - just type in the top right corner window the searched phrase and it will show the results. For your query it would be (with parenthesis): "throttle switch adjustment". You would then find this: https://www.sl113.org/forums/index.php?topic=26120.msg188454#msg188454
And here, reply no. 4: https://www.sl113.org/forums/index.php?topic=31953.msg231788#msg231788
Please note that what we have there in the throttle is not sensor, actually, it is just a simple switch. For adjustment you need to mark its current position for reference, loosen the two screws holding it and adjust it by slightly turning it around its pivot.
As for cleaning, you can open it and have access to contacts and clean/file them as required. Look here: https://www.sl113.org/forums/index.php?topic=29178.msg210963;topicseen#msg210963
Some of the Members decided to install a relay to operate the 3 position solenoid to limit the amperage that is going through switch and adversely affecting its points.
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Technically speaking, I guess it is a throttle position sensor, albeit in the simplest possible form (yes/no) ;)
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As for cleaning, you can open it and have access to contacts and clean/file them as required. Look here: https://www.sl113.org/forums/index.php?topic=29178.msg210963;topicseen#msg210963
Some of the Members decided to install a relay to operate the 3 position solenoid to limit the amperage that is going through switch and adversely affecting its points.
A few years ago, I finally discovered the problem I had with the throttle switch failing after only few months after cleaning. This was a new switch from Mercedes. I had also thought the amount of amperage passing through was too much for the points to handle over time. I installed a relay and the switch worked longer than before, but still eventually failed. After much angst and several cleanings, I discovered the rivet that secures one side of the points and completes a connection a terminal, was not installed tight enough and lost continuity at that point. After peening the rivet and tightening the connection, I never had a problem again. I even removed the relay set up and the switch is still running strong years later.
I imagine original switches were probably made to higher standard and may not have the rivet issue. But if you have a newer switch and having durability problems, check out the rivet.
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Technically speaking, I guess it is a throttle position sensor, albeit in the simplest possible form (yes/no) ;)
Let's say it is a simple switch performing a sensor function, perhaps we can settle there :).