I've sold about 150 of these in the past year and have only had one come back due to a leak. My supply comes from Germany, there may be primer pumps coming from Mexico or Thailand made by Bosch. I havent been able to take one apart without destroying the spring mechanism, good luck.

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1985 300D Gretchen (Astral Silver) 220k
1983 240D 4-speed Evelyn (Orient Red) 203k


TANSTAAFL