No, I have the black push button type and it seems to work properly. Oh, and to answer you previous suggestion, the primer pump did not feel as if it was building pressure, it was constant.

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1980 300TD, SOLD
1984 300TD, 275K
1999 C230 K Black & Tan
2013 C250 Black
1974 CJ5 Red
You might faint from the fight, but you're gonna find it. Every challenge could have paradise behind it. -John Popper-