For documenting and technical details of T25 restorations and major repairs This section is for major restorations only.where to buy a panel or where to buy window rubbers belong in the bodywork seats and glass section.
Also please note,we need pictures of the restorations,without them posts are pretty useless.[\b]
Picture heavy and detailed threads , not for general banter or advertising
Traders welcome to post but not to advertise blatently
Threads will be cleaned of chit chat.
Black sensor sends signal to binnacle for temperature gauge, this works fine.
Blue (Temp2) sensor sends signal to ECU, I think, but as it’s not fuel injected it doesn’t have an ECU. I’m not convinced this is my issue or not, regarding radiator fan not working.
Page 12.41 Haynes.
S42 50A fuse in the engine bay black junction box - my next port of call … but alas no fuse in there, no idea where this is then?
I'm wondering if page 12.41 is an 'early' van wiring diagram.
Last edited by DoubleOSeven on 07 Sep 2021, 17:42, edited 2 times in total.
Well, I guess I should be grateful I can push it back in the garage and forget about it for a bit, when it doesn't behave! No rush; but I do want to get it working well - so I'm asking for help now folks.
Overheating : I changed the 3 pin radiator sensor today, again! but the 2 stage fan just refuses to work. Temperature needle way past 12 o'clock. I have short circuited the 3 pin feed and the fan works, both speeds. Had a think. I was expecting the radiator to be red hot, but I can put my hand on it? A clue, perhaps? Blocked maybe - have you had any experience of this? Air lock maybe - my last thought.
Also, when it gets hots it stalls, a lot - I managed to get around the block, maybe 2000 yards, but on the way back it stalled. I don't know if this is related to the over heating, the exhaust is STILL popping once engine has heated up, but sweet as a nut when on choke (warming up).
I’m putting the poor running when hot down to the blocked radiator / air intake poor when hot.
An ideas, welcome ... I won't shoot them down.
Last edited by DoubleOSeven on 13 Sep 2021, 12:14, edited 2 times in total.
DoubleOSeven wrote: ↑07 Sep 2021, 17:42
S42 50A fuse in the engine bay black junction box - my next port of call … but alas no fuse in there, no idea where this is then?
Mine is on the A pillar next to or above the earth crowns, I think?
'88 Transporter with hitop camper conversion, 1.6td.
Air lock (bleed the system)
Thermostat not opening (remove thermostat & test in some boiling water)
Water pump seized (open expansion cap when it's hot [DANGER] if water spits out - its working, if it doesn't - it ain't)
Is it the original radiator Martin? If so, it could be proper rusted especially if it's been sitting around for a while - when i changed mine you could feel the difference in weight against the new one the rust was that bad. That said it still held temperature and seemed ok even in that condition.
Worth doing the checks you've suggested - i had also changed the sensor when changing the rad and the temp now settles at almost 3/4 rather than 12 o clock with the old one.
