Dear Vintage - Opel friends,I'm pleased to be able to offer you the following article:
This excellent set offers a convenient method to increase the oil pressure of the Opel cih machines again! The original plastic pistons and also the springs of the normal aluminium - oil pump cap wear out to extreme levels over time. Due to this, the valve opens too early and the oil pressure is correspondingly lower.
Here you can buy a new piston in steel, this is slightly longer than the orignal plastic counterpart. This doesn't only improve the piston drive, but also the preloading of the spring is increased and with it the oil pressure, as the relief valve also opens later.
In order to round out this set, a brand new spring and two aluminium seal-rings are included. - Why two seal rings? That's easy, when you install both seal rings, then the piston is the original length again! When the oil pressure is still good, then you can install both. For all of you who are not satisfied with their oil pressure, then only install one seal ring.
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