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Mercedes-Benz Pontons (1953-1962)

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02:16 PM ET (US)

Throw out bearing spacer?

(See Message 3397, January 4, 2021 for more......this probably explains why it was hard to shift!!! Mercedes 1958 190 W121. I managed to get it working again after adjusting the Clutch Release mechanism. But after a few miles, the whole thing stopped shifting entirely. )

I removed the transmission and clutch and found my throw out bearing died inside the clutch housing. I found most of the parts. They were not of much use any more!!!

I also found (in my collection of parts that I have had over the past 49 yesrs) what appears to be a throw out bearing from I do not know when or where. It looks unused, although it has some signs of age (dust and external rust that just wiped off). It is solid, and rolls smoothly. I plan to put it in the transmission. But, I have a question......

The old sleeve had lost most of the bearing, leaving only a very hard to remove base of the old bearing, and some kind of spacer. Or maybe that spacer was part of the old bearing, which was now destroyed. It is a simple piece of tubing, maybe a quarter inch wide, and loose fitting on the inside of where the base of the old bearing was. It easily slides up and down the bearing housing shaft. As far as I can tell its only function is to act as some kind of spacer to move the bearing itself forward.

I do not see this piece in any of my manuals, suggested maintenance procedures, or parts catalogues for the car.

Anybody have any ideas about this thing? Should I include it in putting the transmission back on? Or what?

Jeff Miller
02:27 AM ET (US)

These pages mention asbestos.

Exhaust resonator

Heat riser gasket
06:21 PM ET (US)

ASBESTOS AND AUSTRALIA. Good morning all, and a happy New Year. Our 1957 220S is currently in the Netherlands and we are considering sending it to Australia to drive there for a year before returning the car back home to New Zealand. Australia has very stringent anti-asbestos importation regulations in place that do not allow ANY asbestos on the car. Does anyone know where the asbestos was fitted in these cars in the 1950s? We have replaced all gaskets, hoses, clutch and brake linings with modern, asbestos free materials, new wiring looms and replaced the door linings. However we wonder whether here were other areas MB may have used asbestos in the past such as upholstery, bonnet insulation, bottom pan etc. Does anybody know? Many thanks. PS. Picture of our car was taken in 2018 at 4,780m altitude in the Corderilla Blanca, Peru.
Edited 01-08-2021 06:24 PM
07:37 PM ET (US)
Thank you, Don....I was noticing that in the manual about those bushings. After some more experimentation today, I am looking at the clutch and throw out bearing. It could be that the clutch is not disengaging. This of course makes shifting difficult. It is a work in progress.

Don French
10:46 AM ET (US)
Response to alexmcconahay: Common failure points are the shift bushings near the firewall; nylon parts dry out and break but fortunately readily available; also one at the steering column. Shift rod length is adjustable and a mis-adjustment may keep car from shifting into all gears. You can replace the tranny fluid with ATF (was a heavy gear oil way back then). If all else fails I have a good 1.9 litre engine and transmission available; actual 94,000 miles, last used in 1974; these are spares I no longer need and will be putting on eBay this year.
06:10 PM ET (US)
I have 1958 190 W121. I am in process of rebuilding it after it sat idle for 25 years or so.

The engine is running, And I have driven it around the block for two or three miles (after five months of work).

However, after the last drive, it seems the shift mechanism is not working right. I seem to be stuck in some forward gear.

I have checked the shift linkages to the transmission. They seem to be intact. Whether or not they are actually shifting anything inside the transmission, though, is hard to tell.

Anybody have any ideas?

M Leahy
05:18 PM ET (US)
Our 1958 Mercedes 220S, which has a hydrak transmission, has a unique problem I am hoping you can help with.

Generally, while driving the car the gears shift smoothly. Sometimes, when I put it in neutral, such as at a stop sign, it won’t go back into any gear. It is like the transmission is stuck in neutral. It will not shift out of neutral. I've revved the engine up in attempt to build increased vacuum, but to no avail.

We experimented and the only way to get it to go into gear is to turn the car off for a couple of minutes. It seems like something (the vacuum?) needs to reset.

After a few minutes with the engine off I can shift into any gear. At this point I have two choices: 1)
restart the engine in neutral and shift into gear - usually second. Success is 50-50 with this method. 2) With the engine off, shift into second, and then start the car in gear. This always works.

Of course, turning the car off in traffic and waiting two minutes is a bummer and not a good solution.

Any ideas on what's going on with our car?

Monique and John
04:34 PM ET (US)
Chris Watson, if you failed to fit the aluminum spacer to the front of your starter, you could have this problem as the starter gear is then in too close.
04:32 PM ET (US)
Michal, I put a bench seat into my 220se because it was a higher cost option and now lets me carry 6 people in the car which is still under restoration
Jeff Miller
04:58 AM ET (US)

The bench seat and the two separate front seats were both original options. Get the data card for your car to see what headlights (a.k.a. scheinwerfer), and other options came with it. Scheinwerfer = Headlights.

Once you have the data card, you may see something like "Scheinwerfer (Bosch)"

Data card page
Michal Appl
05:26 PM ET (US)

Hello everyone,

   Today I received a purchased Ponton 220a from 1955. It is completely complete, not attacked by a handyman and it is a beautiful basis for renovation. I bought my car in Sweden, where it was exported after production. I bought it because my friend and renovator owns almost the same Pontoon in the same color and also from 1955, which was exported and bought in Sweden. I have a few questions that I did not find the answer to anywhere. My car does not have two seats in the front, but a bench, a seat as a whole - why ??? In the trunk of my car I found other spare dish lights have Marchal on my car I have Bosch and fog lights Hella ,. What brands of lights were given on the Ponton220a 1955?
   That's about it for a start. I attach photos and Hello everyone,
  Messages 3391-3390 deleted by author between 10-24-2020 05:21 PM and 10-24-2020 05:19 PM
John K. Folke
08:50 AM ET (US)
I'm looking for an endless timing chain for the m180.924 motor. The car is a 1959 w180 220s.This is the series III straight six. I can find the ones with a master like but not the one piece one. Also can someone provide bolt torque specs for this engine.
Edited 10-11-2020 08:53 AM
09:54 PM ET (US)
I’m a new owner of a 1959 Mercedes Benz 180D.
I want to adjust the valves. Can someone tell me the firing order of the cylinders and the valve clearance(s) of the Intake and Exhaust valves?
Raymond Binder
01:03 PM ET (US)
To MitchellG Thank you for responding. By all means please provide what ever information you can. I bought a unit for the trunk but I am at a loss as to providing a double pulley on the crank and how to fabricate mounts for the compressor. any info will be greatly appreciated. Raymond
08:46 AM ET (US)
Good morning
I proudly driving 1960 190Db W121.
Living in Texas is impossible not to have AC so I did install aftermarket system in the trunk is working very good. If you're interested I can provide information.
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