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Old 2nd August 2018, 19:38   #166
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Default Re: Mercedes W123 240D - Yet another addition to the family

The 118ne certainly did. I have one which looks similar..
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Old 11th August 2018, 18:01   #167
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Default Re: Mercedes W123 240D - Yet another addition to the family

Got hold of the owner's and service manuals
Mercedes W123 240D - Yet another addition to the family-img20180806212401.jpg

W123 meets its ancestor
Mercedes W123 240D - Yet another addition to the family-img20180811143740.jpg
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Old 12th August 2018, 21:10   #168
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Default Re: Mercedes W123 240D - Yet another addition to the family

Fitted the wheel arch trims and mudflaps today.

Not that I intend to drive around in rains..
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Mercedes W123 240D - Yet another addition to the family-img_20180812_191848.jpg  

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Old 8th October 2018, 01:47   #169
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Default Re: Mercedes W123 240D - Yet another addition to the family

Posting again after a while.

The vacuum pump has been causing trouble lately. Traced it down to a faulty check valve. It's appears completely disintegrated.

Mercedes W123 240D - Yet another addition to the family-img20180915093849.jpg

I have found a donor pump sourced from a scrapyard which seems to have a working check valve. Will attempt replacing it once free.

Mercedes W123 240D - Yet another addition to the family-img20180915093836.jpg

Next on my to do list, fix the clutch master/slave cylinder. The clutch pedal has sunk to the bottom and I can't spot any brake oil leakage anywhere
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Old 8th October 2018, 12:45   #170
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Default Re: Mercedes W123 240D - Yet another addition to the family

Quote:
Originally Posted by bikertillidie View Post
Next on my to do list, fix the clutch master/slave cylinder. The clutch pedal has sunk to the bottom and I can't spot any brake oil leakage anywhere
As it was working before, the likelyhood of air having entered the system is remote.

So, ith these symptons, most likely the master cylinder. Slave cylinder will leak oil when the seals/rings are worn down. You can have internal leakage in master cylinder. So the hydraulic fluid will find its way past the piston seals, but it still stays within the cylinder. Nothing shows on the outside.


Jeroen
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Old 22nd October 2018, 00:17   #171
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Default Re: Mercedes W123 240D - Yet another addition to the family

Updates as of 21st October

Finally found some time to examine the master cylinder for the clutch hydraulic circuit.

It was badly corroded, thereby causing the malfunction.
Mercedes W123 240D - Yet another addition to the family-img20181020220617.jpg

Mercedes W123 240D - Yet another addition to the family-img20181021115133.jpg

And the replacement..

Mercedes W123 240D - Yet another addition to the family-img20181020214120.jpg

While removing the old master cylinder, one of the bolts had sheared off. Hence, the entire pedal assembly had to be removed from the car. The broken bolt was extricated using a blow torch.
Mercedes W123 240D - Yet another addition to the family-img20181021115039.jpg
A replacement M8 bolt..

Mercedes W123 240D - Yet another addition to the family-img20181021115104.jpg
Mercedes W123 240D - Yet another addition to the family-img20181021115109.jpg

While at it, the entire pedal assembly was cleaned and lubricated. The nipple connecting the master cylinder to the brake fluid reservoir was reused.

Mercedes W123 240D - Yet another addition to the family-img20181021120427.jpg
Mercedes W123 240D - Yet another addition to the family-img20181021122955.jpg
Mercedes W123 240D - Yet another addition to the family-img20181021123000.jpg

Test drove the car to Jejuri and back this evening. Problem seems to be fixed for good.
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Old 4th January 2019, 10:34   #172
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Default Re: Mercedes W123 240D - Yet another addition to the family

Wow, what a read. Meticulous and very patient restoration. I love the way the community supported. Congratulations. I was bitten by the 123 bug, but was wondering if I'd have the patience like you do.

Congratulations again mate. Hope it's healthy and running fine.
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