This mechanic seems to be full of excuses and not solutions

Some MW IPs from about 1983 have a little cover on the governor that allows what is commonly called the A-B timing light. This is an easier way of setting begin of delivery. However a drip test can be done with or with out this ability. A drip test is the standard test.

Perhaps it is time to find a different mechanic.

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!