Rabbit pump vs Eco pump

[R.O.R-2.0]

I measured a pug pump I have 0 460 494 159 and the cam plate lift is 4.2 mm. On the back of the cam plate is marked 440. Does that number signify anything?

the difference from the valley to the peaks is 4.2mm?!?!

and its a 9mm plunger.. weird..

Sorry, I forgot to subtract the thickness (1.9 mm) of the plate that was laid on top of 2 peaks when the measurement was made. Subtracting 1.9 would give 2.3 mm for the pug cam plate on my pump.

swear thats the measurement i got as well..

Some possibilities for the 2.19 mm that Jeremy measured:

1. It is correct
2. Cam is worn. Can it wear that much?
3. Jeremy's memory may be off?
4. Error in measurement

Maybe Jeremy would be so kind to measure it again?

oh no, if anyones memory is off, its mine..

i would take Jeremys word over my own even..

[8v-of-fury]

Some possibilities for the 2.19 mm that Jeremy measured:

1. It is correct
2. Cam is worn. Can it wear that much?
3. Jeremy's memory may be off?
4. Error in measurement

Maybe Jeremy would be so kind to measure it again?

Sorry I missed this REPLY!!! that was several measurements all at the same time, and numbers not from memory. I keep a handy dandy note pad in my pocket while I am on endeavors so that I don't have to rely on my memory .

The cam plate showed no substantial wear. Here is a picture of said Peugeot cam plate.



I measured from the flat bottom to the valleys, and then from the flat bottom to the very peaks of the lobes. 2.19mm.

Crap picture, but beside the AAZ plate (left).

[92EcoDiesel Jetta]

jboogie13, have you started on your pumps yet?  I disassembled a NA pump and took measurements of the cam plate lift. I'll post it later.

[92EcoDiesel Jetta]

On the left is the Peugeot cam plate, right is VW NA. They are both 9 mm pumps. Peugeot cam plate has 2.5 mm lift, VW NA cam plate 2.1 mm lift. This time, I measured it the same way 8V did, which should be more accurate than my previous measurements.

The Peugeot pump is a TD pump from a 2.3 L engine w 80 HP. Should I use the Peugeot cam plate to build my VW TD pump? Good or bad idea? What can I expect from it?

[8v-of-fury]

Flip them on over and compare the sizes of the nubs that interact with the plunger.. Mine were different for the Peugeot and the AAZ. Which is weird, because I have put aaz cams in 1.6 pumps before.

[92EcoDiesel Jetta]

Nubs? Not sure what you mean.

[8v-of-fury]

Flip the cam-plate over, the little chrome nipples that fit sunggly in the rotor. They differ in size.

[92EcoDiesel Jetta]

I may have used the wrong terms. What I called the cam plate is actually the cam disk. The cam plate is still in the pump (you can see in the pic). Is that what you want me to flip over?

[92EcoDiesel Jetta]

Can you post a pic of the nubs?

[8v-of-fury]

No sir, that is the roller cage. The cam plate/ cam disk is the same thing. Flip it over and observe the chrome tit.

In your picture, see the two chrome circles that are perfectly in line with the cams lobes? they run through the camplate/disk. Far right of the inner circle.

[92EcoDiesel Jetta]

took a shower and I'm in bed now. I'll take a look tomorrow.

[92EcoDiesel Jetta]

Flip them on over and compare the sizes of the nubs that interact with the plunger.. Mine were different for the Peugeot and the AAZ. Which is weird, because I have put aaz cams in 1.6 pumps before.

What is "them" in my pic above? The cam plate? Where is the "nub"? On the cam plate or elsewhere? The only "nub" I see on the opposite side of the cams on the cam plate is an off center drive pin, a chrome plated center which pushes on the plunger via a chrome plated disc.

Flip the cam-plate over, the little chrome nipples that fit sunggly in the rotor. They differ in size.

There are no chrome nipples on my flipped over cam plate. These chrome nipples fit snuggly in the rotor? What rotor?

No sir, that is the roller cage. The cam plate/ cam disk is the same thing. Flip it over and observe the chrome tit.

In your picture, see the two chrome circles that are perfectly in line with the cams lobes? they run through the camplate/disk. Far right of the inner circle.

Again, the only thing chrome after flipping the cam plate over is the center circle.

"two chrome circles that are perfectly in line with the cams lobes" If you are talking about the opened pumps, those are roller cages without the rollers. What "nubs" are you talking about?

"they run through the camplate/disk."  Run through implies there is a hole in the cam plate. There is no hole in my cam plate.

Very confused 

[TylerDurden]

[kibbutz]

I believe 8v is referring to the dowel-pins that orient the plungers to the camplates... they might be different sizes.

The pin referred to as a "drive pin" in above post.

[/kibbutz]

[8v-of-fury]

Flip them on over and compare the sizes of the nubs that interact with the plunger.. Mine were different for the Peugeot and the AAZ. Which is weird, because I have put aaz cams in 1.6 pumps before.

What is "them" in my pic above? The cam plate? Where is the "nub"? On the cam plate or elsewhere? The only "nub" I see on the opposite side of the cams on the cam plate is an off center drive pin, a chrome plated center which pushes on the plunger via a chrome plated disc.

Flip the cam-plate over, the little chrome nipples that fit sunggly in the rotor. They differ in size.

There are no chrome nipples on my flipped over cam plate. These chrome nipples fit snuggly in the rotor? What rotor?

No sir, that is the roller cage. The cam plate/ cam disk is the same thing. Flip it over and observe the chrome tit.

In your picture, see the two chrome circles that are perfectly in line with the cams lobes? they run through the camplate/disk. Far right of the inner circle.

If its the only one you see.. he nits the only thing I could be talking about lol

Again, the only thing chrome after flipping the cam plate over is the center circle.

Lies lol, the nub/pins/dowels are also chrome

"they run through the camplate/disk."  Run through implies there is a hole in the cam plate. There is no hole in my cam plate.

Very confused 

You have found the pins/dowels/nubs compare both sides of the cam plate/disk they do run through it as a solid dowel/pin/nub.

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.

[92EcoDiesel Jetta]

Here's the the Peugeot cam plate. Pin end is not chrome. I was looking for "chrome nipples", nipples is plural so I was looking for 2 or more and there was none to be found. Now that I know what you are talking about, looking closely at the circumference of the pin, it is chrome, and the pin does look like it can be driven out. I was confused as hell and looked in the wrong places lol. I thought maybe the chrome nubs (plural) were the rollers since there are four and they are definitely chrome.

Well both cam plates nubs fit both plungers. Do you recommend I use the Peugeot cam plate with higher lift?

I do know the plunger/head is a matched set.

How do you tell if a plunger /head/ control collar is within spec?