Bruce McC.,

I, too, use Mazola (due to wife's objection to diesel smell).

I adjust my shims, but I use a belt sander and a home made jig.

Every .05 mm on the shim adjustment makes ~ 3 bar difference in "pop" pressure.

I use a .10 mm endodontic file to clean the nozzle holes (carefully) .

My home made pop tester is not as elegant, but does have, what some have called, the "California Twist" to the injector line.

And my name is Bruce, also.

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)