Have now done filters and oil change on my 620 diesel and it seems to be better that when I bought it, however, two or three questions:
a) Should you be able to feel the turbo in the same way you can in a
418tdi? This one seems noticeably lethargic compared to the 418 and you don't hear any turbo whistle (though if you disconnect the intercooler outlet pipe you can feel a good strong draught with the engine revving).b) The car takes ages to warm up. With it sat idling for a while it gets up to about half way on the gauge (which is where I'd expect it to be compared to the 418), but in normal driving it only just makes it onto the bottom of the white scale. Also, shouldn't the rad top hose be too hot to hold? It is hot, but I can hold it without burning myself.
I think I might need to replace the thermostat but my local parts factors don't list one for this engine. Any idea what the temperature rating for it should be?
c) The cooling system doesn't seem to pressurise, even with the cap screwed down tight. I also don't think I saw a rubber seal inside the cap so I think I'll need to get one from the scrapyard. However, Rover L-series engines are not common in the yards near me, so can I take one from a petrol Rover? If so, which model? I'd imagine any Rover cap from cars of the same era would be close enough???
d) The radiator top hose tees off between the rad and thermostat housing, going down about 8" then across towards the flywheel and into a plastic cylinder type thingy (view obstructed by covers, etc). What is this cylinder thing for?
Cheers all!
Darren