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24v to 12v conversion

Posted: Sun Jun 07, 2009 6:16 pm
by cycomut
hello all

Im lookin at droping in a Gu TD42-T into my patrol the only problem is my car is a 24v system the engine is a 12v system. Is this going to be a big problem if so i wont bother even thinkin of it, or is it as simple as finding some 12v parts (tacho ETC) an pluging them in.... i know its never that simple but hey one can dream... any advice would be helpfull.

Thx in advance

Posted: Sun Jun 07, 2009 6:50 pm
by tweak'e
i would convert the motor to 24v.

Posted: Sun Jun 07, 2009 7:43 pm
by cycomut
the proplem with that is the fuel system is electronic the reason why i want to go to the newer motor, and gettin a 24v system for that would be a pain i beleave... might have a look into it tho

Posted: Sun Jun 07, 2009 8:32 pm
by giantracing
cycomut wrote:the proplem with that is the fuel system is electronic the reason why i want to go to the newer motor, and gettin a 24v system for that would be a pain i beleave... might have a look into it tho
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very easy to do mate,
all things to change over..
1. alternator
2. starter
3. glow plugs
4. diesel pump shut off solinoid
5.glow timer temp switch
6. a/c pump

that is all...................

Posted: Sun Jun 07, 2009 11:18 pm
by RECKLESS
you dont have to change the a/c pump just the sealed magnet that pulls the clutch in very easy job

Posted: Mon Jun 08, 2009 9:04 am
by tim75b
what about the heater fans and electric window motors? dont they require changing and all the relays and all the globes and the central locking actuators

Posted: Mon Jun 08, 2009 9:05 am
by giantracing
RECKLESS wrote:you dont have to change the a/c pump just the sealed magnet that pulls the clutch in very easy job
no he will have to change the whole pump,
GQ run a sandon 508
GU run a nippon.

so unless he is going to rehose it, just change the whole thing

Posted: Mon Jun 08, 2009 9:24 am
by tweak'e
tim75b wrote:what about the heater fans and electric window motors? dont they require changing and all the relays and all the globes and the central locking actuators
thats just it. if you change vechile system over you will need to change every relay, bulb and any motors from fan to window washers.
also i'm not sure if the actual wiring in the vechiles is different ie they may have used thinner wiring for the 24v. if so you would have to rewire the entire vechile. odds are nissan are cheap and used the 12v cabling in everything.

if the motor is TD42Ti either convert to manual pump or run the ECU via a 24-12volt reducer.

Posted: Mon Jun 08, 2009 9:32 am
by giantracing
tweak'e wrote:
tim75b wrote:what about the heater fans and electric window motors? dont they require changing and all the relays and all the globes and the central locking actuators
thats just it. if you change vechile system over you will need to change every relay, bulb and any motors from fan to window washers.
also i'm not sure if the actual wiring in the vechiles is different ie they may have used thinner wiring for the 24v. if so you would have to rewire the entire vechile. odds are nissan are cheap and used the 12v cabling in everything.

if the motor is TD42Ti either convert to manual pump or run the ECU via a 24-12volt reducer.
no td42 is ecu controlled, only the late ones which have a retard solinoid.
can bypass that easy to.......