[Kenlowe Hotstart Instructions (Old Style)]

prob worthwhile checking it works OK first. The earlier type had a tendancy to sieze up if not used for a couple of weeks even if on the vehicle

[Wolf Mirror Arms]

May be wrong but seem to recall LDV convoy & 400 vans , Luton & pickups use the same bits. May be worth a wander round the scrappy.

[Low Engine Revs]

What's it like at high revs?

If holding back could be fuel line blockage further down maybe even in the tank, or air bleed into line from a dodgy joint or pipe

How's starting? any different?

Presume no excess crankcase pressure pointing to worn/stuck rings/major engine woes?

[Water Separators]

Normal oil filter has all oil flowing through so can only filter to 15 microns in the size available.

Bypass filter is an extra that only allows 10-15% of the oil though at any pass (by having a smaller orifice) so will filter down to 1 micron getting all the crud out of the oil. with good ones oil doesn't even go black! = less engine wear.

Think Discos and rangies have them fitted, but best ones I've come across are www Kleeoil.co.uk

[Water Separators]

while your at it stick a bypass filter in your oil line as well. Your engine will thank you!