Rabbit pump vs Eco pump

[8v-of-fury]

I measured my Peugeot cam-plate to have less lift than the 1.6 pumps cam-plate.

2.19mm for the Peugeot and 2.26mm for the 1.6 pumps.

[92EcoDiesel Jetta]

My Peugeot cam plate lift is 2.5 mm , VW NA 1.6 is 2.1 mm. I'll be taking apart another Peugeot 9 mm pump soon. Will be interesting to see what the lift is.

[8v-of-fury]

I measured a 10mm Peugeot pump. So maybe its all different. If you can, I have measured AAZ cam-plates at 3.1mm of lift and a way sharper ramp on them.

I have built three 1.6 TD pumps with AAZ internals with EXTREME results in power increase.

[92EcoDiesel Jetta]

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Now, for what I was simply trying to convey.. I have seen them in different sizes meaning not every cam plate/disk is not interchangeable with every rotor and distributor head. Also for your learning, rotors should never be swapped from their native distributor head. They are a machined couple, and tolerances here must be exact or you loose the ability for high pressure injector opening.

Is rotor the correct nomenclature for the plunger (aka distributor)?

What makes some cam plates not fit some plungers?

[8v-of-fury]

Plunger, Rotor, distributor.. I have heard them called all three.

The cam plates do not fit because those Dowels, are different sizes and they do not fit their respective holes of a different rotor/plunger/distributor. So when swapping just the cam-plate.. there might be issue.

If you were swapping the pumps entire "drive-train" you should have no issue.

[TylerDurden]

Bosch uses the term "Plunger" or "Distributor Plunger", "rotor" is sometimes used by other sources for the plunger, or the vane-pump rotating element.

I suppose it could be possible to pair a camplate with a small pin to a plunger with a large slot, but that will have slop (excessive backlash) that could affect setting the timing .

[92EcoDiesel Jetta]

Bosch uses the term "Plunger" or "Distributor Plunger", "rotor" is sometimes used by other sources for the plunger, or the vane-pump rotating element.

I suppose it could be possible to pair a camplate with a small pin to a plunger with a large slot, but that will have slop (excessive backlash) that could affect setting the timing .

I don't think Bosch calls the plunger/ distributor a rotor. There are 2 other major parts in the pump that rotates that's called a rotor.

[8v-of-fury]

The only rotating parts are the drive-shaft, the vane pump, the cam-plate, and the plunger. The drive-shaft has a gear on it which reverse rotates the governor assembly above it.