CAV pump info for oneten 2,5 n/a

Flossie said:

On the TDI engines, the Banjo bolt holes are different, larger port is flow, smaller is return. I mixed them up once on my 200tdi and it did exactly what yours is doing.
I don't know if the NAD has the different Banjo ports though.

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Holmkiern said:

There are only in and out and lines lenght makes it impossible to switch. No banjos either.
Thanks anyway.

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Holmkiern said:

Agree if it would have been a worn pump but my defender has been used as a fire truck earlier so it has not runned so many km.
I have now worked on this car during 2 years sorting out issues and was hoping to solve this and be able to drive a bit and don't spend 500 pounds on a pump when I got seal kit and just need to understand positions of shafts inside.
But maybe I end up in new pump/renovate anyway.

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Turboman said:

Sometimes low mileage can cause problems of it's own, seals sometimes stick to a shaft when a vehicle is stationary for long periods, and damage the lip of the seal on re-start.
However, if you have already changed the seal, that may not have been the case.
As far as I can remember, there is only one shaft in that pump, and that is the one that runs through the middle of it.
The main problem people experience with working on the pumps themselves is failure to re-assemble properly, or that contamination enters the critical areas of the pump during disassembly or re-assembly. Just a few specks of grit or lint inside the pump can cause damage.
Another problem is that unless you have a test rig for the pumps, you don't really know if you have been successful or not until you have put the pump back on the engine.

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Holmkiern said:

Well, I tried to cut some corners and change seals in pump in car but..
There are 3 shafts,one is ingoing from wire,acc. Just in corner of lid, 1 is to be in slot in a fork inside pump,third is is to control inside pump also and is connected with a spring to bracket for acc. Shaft.

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Turboman said:

We would call those linkages, not shafts.
And we would call the "lid" the Governor Housing.
Not sure what you mean by "wire acc." ?

You are obviously not talking about the seal on the main rotary shaft through the pump? No way you could access that with the pump on the engine.
Do you mean the seal where the throttle shaft goes the governor housing cover? Simple O ring, that usually works, if not, you need to get a new governor housing, they are only about 20 quid from Delphi, I think.

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Holmkiern said:

Yes,you are right,main issue was leakage from governor housing and shaft. That is not an issue anymore.
After reassembly moving ingoing shaft to accelerate,shaft move but still idle and no increase in rev. I must have got something wrong inside pump and that is why I ask if anyone got pictures outside/inside govenor housing showing linkages.
Wire was from acc pedal. English is not my main language and that is why I might use wrong words.☺

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Turboman said:

Not a problem. But to diagnose technical problems, the terms are important.
In English, we would say accelerator cable.

I don't have any pictures with me, I do have a spare pump, but it isn't near where I am at the moment.

I would try google search, use terms like "CAV injection pump governor housing removed".
You might well find there is a Youtube video of someone doing the seal replacement, or just taking a pump apart for interest.

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Holmkiern said:

Thanks,I will try that again. I saw one movie on youtube but did not give me more info.

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