Hi Richard,
on topic: Checked the fans and relais on my car, they work as intended. Never noticed them running after switching off the engine on hot days before, in my own car.
Off topic @gearboxes, tcs and engine sizes… interesting and valuable observations, thanks.
I have a slightly different situation with my own 4.0. It shifts at higher rpm, than a 4.6 GEMS (big tc) and comparable to 4.6 THOR with the smaller tc (like the hp22).
My suspicion is the bigger tc gives the lower rpm?
Hi Richard, yes I crossposted it 😉
Temperature was between 91 to 95 C after long incline and 30 C outside.
I always liked the idea of using electric fans for cooling, when the engine is switched off. I know it from VW and Audi.
Now I discovered that the P38 has this already …
BTW as You changed Your gearbox… the THOR 4.6 drives impressive, but as smaller TC fitted like in our 4.0 has the same rpm like mine, when in TC mode. The bigger TC You have fitted should have a lower rpm. I can compare now 4.0 and 4.6 GEMS and 4.6 THOR.
I discovered to today while driving a P38 4.6 Motronic/Thor from a friend, that the air con fans cool down the engine, after it has been switched of. Nice feature, which I always wanted on my own GEMS V8. Now I compared the Electrical trouble shooting manuals of my model year (98 VIN WA) to the 99 onwards ETM and both say the air con fans will be running after engine is switched off, for cooling purposes? Does the GEMS Efi has this feature? There are three relays on both models (13/14/18) which I do maybe understand, but I never experienced my fans running after switching off the engine (or I never heard it?) ... I will test according to the ETM the function of the relays and fans tomorrow on my car, but any hints/tipps on this subject are highly appreciated! happy rangerovering
I rarely use my P38 that much in low and offload, but when the traction control works and kicks in, I remember that at least the indicator sign lights up ... I forgot, if the P38 "speaks" in the message center, too. Maybe just a sign it worked as intended and applied the brake at the spinning wheel(s)? Maybe a check with a diagnostic tool will tell you if there are any errors stored in the ABS ECU. Or traction control kicks in for longer than the intended period (iIrc 20 seconds) and then the brakes have to cool down. Don't know the algorithm/pattern in the ECU and brake control periods.
Were there ABS failure messages, too? Or only traction control? Did the wheels spin a lot? 2 or four channel TC (pre or post facelift 98/99 model year)?
Richard, Your Sherlock Holmes like abilities to trace/find errors are simply amazing!
Congrats for another success story!
happy rangerovering
THX Richard, very useful info. Good luck with your swap. pls report how the bigger TC alters driving. From my experience the GEMS 4.6 have a lot lower rpm while in converter mode (before TC lockup), makes them feel a bit more relaxed.
Hi Richard, sorry for Your gearbox :-( please give an update if the hp24 fits, as I am planning the same swap (the one from a 4.6 GEMS with a bigger torque converter). If it is plug & play (I guess the tranny ECU has to be swapped, too?) but if they are the same lengths and how the 4.0 feels with the bigger TC? Would be gr8!!!
Pierre do You have any tips how to polish the ABS/wood?
Hints are highly appreciated!
Hi Leolito, sorry, had a look at the center console in my parts shelf, sadly it is from a late one (facelift), where the surface peels and one tab is broken. Sorry mate.
The safety box is now in New Zealand ... due to Coronoia lockdown it took more than two month to arrive ...
But I can ask a german breaker, who specialised in P38s?
BTW if I would have a rhd I would try to get my hands on the japanese (genuine/factory) version of the center console, different layout of the buttons and integrated screen in the more convenient place at the top of the console.
Pierre … You‘re very lucky having found the part new! It took me ages to find a used one. Only after I found it, I did a search for the corresponding wooden console, as the later ones were the preferred choice. Charles is a very friendly and helpful guy!
If You don‘t have it already I would look for the center console sidewings with wooden top strip. There are versions around, where the side wings have two parts, the wooden strip is bolted with five or six screws. Mostly all leather covered side wings and a few plastic ones are this version, whereas most plastic ones are one piece. What is Your interior color (seats and carpet)?
The swap of the sensor, clock and switches is easy and done perfectly with a Gin (or Whisky in me case) at the desktop.
Leolito I might have the black genuine surround in my parts shelf if it is any help for You? I fully agree on the bad design of the interior. It was made with fast assembly not with repair on their mental agenda or design brief! LHD ones are quite available on continental classified ads pages and usually sell for around 100-150. But wooden ones are made of „unobtanium“ and sell for a fortune (I bought mine for 250 plus postage from france, but I searched very long and got offered sometimes very bad scratched ones for much more money). You just have to search very long. I posted a search query in many FB P38 and LR parts groups and finally got, what I wanted.
There‘s a bad seller on ebay who asks ridiculous prices and is personally someone, whom I try to avoid.
another respectful WOW! I was always interested it this airflow data stuff, but this is really great.
THX Morat, like it, too. obviously.
Richard, I have searched them for a long time ... some D2 commercials had them fitted.
Even searching for images inn advance didn't show up any results.
Luckily a fellow P38 driver got them as a 2nd set with his car and dislikes them very much ;-)
Gives the car a more "utilitarian" look.
Finally found a set of genuine steel wheels (and a reason for another set of tires, I have to drive through a forrest area with hills and some mud for the next year, would have chosen MT thread, but there's nothing road legal for winter available here in germany :-( )
So I fitted Pirelli Scorpion AT plus ... otherwise I would have chosen the General Grabber MT ... which gave some trust on my offload RR Classic many years (ago).
Very nice ones! THX
Cool project ..!
I guess it is something for a long evening and the several Electrical manuals on the screen in parallel for a comparison of the pin layouts?
I have a 98 V8 GEMS with the additional relay for the compressor clutch ... maybe it is possible to use one later (THOR) fuseboxes.
Maybe a comparison of the owner manual and fuse numbers will show differences, too.
Has anybody knowledge or experience, what in the fuse box usually fails? Can it repaired … parts compatibility?
I know about burnt out blower relays from reading …
Impressive car! Wow 😮
I Like the frontbumper a lot.
Willow Green looks very good on the P38
I read in Your signature about the 50th anniversary … was it the one with the 18“ Comet wheels?