[Vwdiesel] 1.5 injector seals

[adamo robison]

my injector was leasking profusely from the base so i replaced it with a spare from a spare block. it looked really similiar but not exactly the same. the distance between the end of the taper seat? to tip was the same and so was the diameter of tip. it ran good the first time and then it sstarted leaking again. so i tightened.
it still leaked and ran rougher. is this because of a little crush shield under the injector in the block?
how does one take that out, a little hooked picked?
do they crush i got what was called an injector shield from the parts place, it looks sthe same but how does it conform to seal?
should i replace all four with the different injectors. is that acceptable, theyre both 1.5 blocks
thanks

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