Converting to diesel

[superstator]

I think from the 2.5 on they came with a solenoid, but mechanical shutoffs can be retrofitted at least through the 300tdi. They are nice, since it means you can run the thing entirely without electrics if need be (as long as you can get it started). That saved my bacon at least once when I had a dead alt & battery.

[SafeAirOne]

I think from the 2.5 on they came with a solenoid, but mechanical shutoffs can be retrofitted at least through the 300tdi. They are nice, since it means you can run the thing entirely without electrics if need be (as long as you can get it started). That saved my bacon at least once when I had a dead alt & battery.

Yeah--the 2.25Ds had a manual valve whereas the 2.5Ds have the solenoid shutoff. Gene, I've never seen a 2.5 with the mechanical shutoff--Did your friend install it or was it already there?

Adrian (or Gene)--you wouldn't happen to know a part number or source for a mechanical shutoff that'll fit the 2.5 injector pump, would you? I've been casually looking for one for a few years now, for just the reason mentioned.

[SalemRover]

I would like to second the desire for a mechanical 2.5 shutoff. The less wires the better!

-Jason

[superstator]

I think you have to kind of make it up as you go. The Bosch VE pumps on the TDI's have mechanical shutoffs already, in case the solenoid fails open - you just have to disable the solenoid and fab up some kind of linkage to the mechanical lever. The 2.5 pump (CAV DPS) might have something similar, or worst case I bet a local diesel shop could figure something out if you took it to them.

edit:
According to this, the DPS should have a mechanical shutoff, and an activate-to-stop solenoid is available. Again, a good diesel shop should be able to figure it out.

[fred98050]

I think from the 2.5 on they came with a solenoid, but mechanical shutoffs can be retrofitted at least through the 300tdi. They are nice, since it means you can run the thing entirely without electrics if need be (as long as you can get it started). That saved my bacon at least once when I had a dead alt & battery.

I'll keep that in mind.

I don't know much about the Rover diesel engine at this point. I have some experience with older Mercedes diesel which use vacuum to shutoff. I really like the idea of a mechanical shuttoff vs electrical though.

Thanks

[ignotus]

The mechanical shut off was on the vehicle when he got it. I'll take a look next time I see him and find out what we can.

gene

[fred98050]

New to 2.5L diesel....

I have been browsing on the net for a while now and it seems that some parts, injectors, glow plugs, fuel and oil filters are common to the 2.5 and 2.25 diesel. Is that correct?

Thanks

Fred

[superstator]

Yes, they're very closely related.

[SafeAirOne]

...some parts, injectors, glow plugs, fuel and oil filters are common to the 2.5 and 2.25 diesel. Is that correct?

The answer is "sometimes" or "it depends".

From what I read, they used 2 different styles of glow plugs on the 2.25D Early series-wired plugs with 2 wires and later parallel ones with one wire.

The injectors are similar, though 2 different part numbers were used. Don't know if they were different parts or one superceeded the other.

Not sure about the fuel filters on 2.25D-equipped series vehicles. I know that the 2.25D-equipped 90s used the same filter assembly as the 2.5D-equipped vehicles. At least the diagram in the WSM indicates this.

As for oil filters--Did the 2.25D series rovers also use the canister-type oil filters, just like the petrol 2.25s? The 2.5 P&D engines have always had the manifold for the spin-on filters, to my knowledge.

The good news is that 2.5 parts are plentiful, available and relatively economical (at least for the diesel).