Just a quick comment about fixing these cars yourself. One reason I went for the manual 240D is that you really can work on these cars without the long background of the "life- long mechanic.", It would help tho

. .. Its hard if you dont have a place under cover to work but if you have a garage get some tools from Hbr Freight and start saving some $. Its fun too.
Not cleaning off you engine, Wow what a guy ...You, no doubt are looking for a replacement mechanic. Which you need to find even if you start doing your own work. There are some repairs I would not do,not yet anyway. And bring him a donut and a cup of coffee now and then when you find a good one.
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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug
"Lifes too short to drive a boring car"