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rover75lover · Jul 6, 2014

Hi,Ive just bought a 1996 registered (1995 build) p 38 diesel manual.
Struggling with the following
Oddometer comes up fault,
the clock mileage says 106,000 but the mot last year said 104,000 and the one before 124,000 has she been clocked? I didnt think that it was possible?
overheating- idles fine but as soon as you go on the road up she goes on the temp into the red and the heater loses its heat ,rev it and the heat comes back and the temp drops to 12 o'clock. Had the stat out and its opening at 84 degrees so it looks ok. Had the pump out,its a metal impellor one and seems quite good.Anyone have any ideas?
If it helps ,the hoses dont go hard etc and the bottom hose is really really hot but the top one is cool. ?
Checking the rad with the marble job tomorrow but this one is a bit of a weird one.
Theres no smoke from the exhaust and no moisture in the engine oil.

Saint.V8 · Jul 6, 2014

Check the Rad surface is warm all over and not patchy...the Diesel Rads are top flow and need the baffle so as you say do the marble test....you may find it is silted up at the bottom reducing cooling efficiency...Also check the viscous fan for correct operation...contact Datatek for his A/C Fans Mod for additional cooling.

My guess would be old rad and possibly an air lock if the heater goes cold!

The mileage changes if the BeCM or the Instrument pack has been swapped BUT it will default to the highest value (the BeCM and the IP both store the mileage and will revert to whichever has the highest stored figure)...it is either the MoT station messed up the reporting or the BeCM AND the IP have been swapped from a lower mileage vehicle!

Datatek · Jul 7, 2014

If the clocks are changed, as Saint said the mileage should go to the highest recorded either in the BECM or instrument pack. However, I have seen reports that this doesn't always happen imediately. sounds to me like the instrument pack might have been changed to a lower mileage one. It is possible to clock them, not easy though.

Rick-the-Pick · Jul 7, 2014

It sounds like it's had problems & the last owner changed the ecu's over & sold it to the next unsuspecting buyer.
Mileages don't go down.

brianp38dse · Jul 7, 2014

data, would it be possible to have your ac fan mod .

Datatek · Jul 7, 2014

brianp38dse said:
data, would it be possible to have your ac fan mod .

PM me with an email address.

NikTheGeek · Jul 7, 2014

rover75lover said:
the bottom hose is really really hot but the top one is cool. ?
Checking the rad with the marble job tomorrow but this one is a bit of a weird one.
Theres no smoke from the exhaust and no moisture in the engine oil.

If it's a diesel, it shouldn't have a bottom hose. It should be in and out at the top. Hence the baffle which your marble test will check for.

(It will have smaller oil cooler hoses at the bottom depending on model)

brianp38dse · Jul 7, 2014

Datatek said:
PM me with an email address.

pm sent thanks.

Grrrrrr · Jul 7, 2014

He said manual. The gearbox oil cooler pipes go across the bottom.

new addition

rover75lover

Active Member

Saint.V8

Dyed-in-the-wool 100% RR Junkie

Datatek

Well-Known Member

Rick-the-Pick

Active Member

brianp38dse

Well-Known Member

Datatek

Well-Known Member

NikTheGeek

New Member

brianp38dse

Well-Known Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

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