GUs & Turbo Timers

Submitted: Thursday, Apr 29, 2004 at 20:22
ThreadID: 12489 Views:1603 Replies:10 FollowUps:3
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I recently purchased a GU DX 2.8TD, knowing how important it is to let the turbo cool down but sick of waiting I purchased a turbo timer. At first I purchased one with only three wires (12V,Earth,Ignition) yet once installed the 'sub tank' came on after using it once then unplugged negative terminal and uninstalled turbo timer and was back to normal.
Then found out need 4 wire version (12V, Earth, Ignition, Assessories), installed it and tried couple times and all worked perfectly until leave the patrol turned off for a couple of minutes then turn on and the 'sub tank' lights returns.
As i am sure the previous owner had a turbo timer due to the ignition wire had already been adapted and remains of double sided tape on dash how is this able to be stopped a i have read that people do have them installed and not everyone can have the sub tank light on.
Also with the assessories wire i connected it to the back of the stereo or should it be at the ignition module, i put it there as no one publishes a GU 2.8TD manual.
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Reply By: Member - Bob L - Thursday, Apr 29, 2004 at 21:33

Thursday, Apr 29, 2004 at 21:33
Daniel,
Put it back in the box, you don't need it.
The 2.8 Turbo is watercooled and under normal highway conditions would cool down in the 60/50 speed zones.
The only time to let it cool is if you have been running flat chat and come to a quick stop.
This is what I was told when I purchased my 2.8 4 years ago.

Cheers Bob L

AnswerID: 56628

Follow Up By: Member - Bob L - Thursday, Apr 29, 2004 at 21:35

Thursday, Apr 29, 2004 at 21:35
PS. The cut/taped wires may have been forom mobile phone etc?
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Follow Up By: geocacher - Saturday, May 01, 2004 at 23:15

Saturday, May 01, 2004 at 23:15
Do you really think Nissan or any other manufacturers would really warrantee a turbo diesel for 3 years/100,000 without a turbo timer if they are an essential item? (I used to work for an Australian Automotive OEM in their Engineering & Development facility)

Not a snowflakes chance in hell.

Dave
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FollowupID: 318659

Reply By: Member - Roachie (SA) - Thursday, Apr 29, 2004 at 22:10

Thursday, Apr 29, 2004 at 22:10
Daniel,
I agree with the other respondent that you don't need the timer.
I had one on my last truck (a GQ 4.2 with safari turbo). I now have a GU 4.2 t/d and haven't bothered with a timer. So long as you don't shut down after you've just climbed a steep hill or been going flat chat and then stop on the side of the road in a hurry etc, you won't have a problem. The term they use (I think) is "thermo syphoning"......once you do shut down (providing the turbo isn't red hot) the coolant will continue to circulate through the system for a short time.
I also believe that it is "technically" illegal to walk away and leave your vehicle running unattended. I used to do it all the time when I had my GQ and a few people chipped me about it. Others simply said" hey mate, you've forgotten to turn the motor off"......
Just my thoughts.
AnswerID: 56636

Follow Up By: theratt - Friday, Apr 30, 2004 at 06:10

Friday, Apr 30, 2004 at 06:10
2003 patrols have oil cooled turbos not water fed , so i believe a cool off period is of a benifit
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FollowupID: 318405

Reply By: Truckster (Vic) - Thursday, Apr 29, 2004 at 22:44

Thursday, Apr 29, 2004 at 22:44
Check with your insurance company most wont allow turbo timers.

Also in Victoria its illegal to leave your car with the engine running, turbo timer or not.
AnswerID: 56643

Reply By: Member - Robert (WA) - Thursday, Apr 29, 2004 at 23:06

Thursday, Apr 29, 2004 at 23:06
the Gu have two ignition wires one assessories wire you have to pick up both ignition wires ( you can not just join them you have to fit a diode in the wiring) for the turbo timer to work or you can get the right turbo timer for your GU not sure of the brand name but i can find out for you if you want
you will find the sub tank light comes on after about 30 seconds and you have too pull the main fuse out to reset it As i have just fitted one to my mates GU that how i know
where do you live

regards
Robert
AnswerID: 56647

Reply By: Rosco - Bris. - Friday, Apr 30, 2004 at 12:27

Friday, Apr 30, 2004 at 12:27
As I understand it turbos spin at up to 30000 RPM with oil feed to the bearings.
Shut off the engine too soon and shut off the oil to the bearings ..... :-(((

Some like 'em, some don't ... horses for courses.

Correct about the legalities but no complaints from my insurer.
AnswerID: 56701

Reply By: thomo - Friday, Apr 30, 2004 at 15:52

Friday, Apr 30, 2004 at 15:52
I rang the head bloke at dts turbos in melbourne to order a turbo kit and i asked him about turbo timers he told me not to waste my money he said they did a heap of testing with there kits and found no benefit in fitting them.
AnswerID: 56723

Reply By: Member - ramp - Saturday, May 01, 2004 at 04:01

Saturday, May 01, 2004 at 04:01
hi daniel,I monitor my temp of the turbo as i have turned the boost up to 17psi from 10psi and as said above after steep hill or hard work the turbo will be fine.by using the gears to slow down it is quite amazing how much the temp will drop so if you can coast down a hill before you stop all the better. cheers rob
AnswerID: 56810

Reply By: Daniel No.8 - Monday, May 03, 2004 at 09:56

Monday, May 03, 2004 at 09:56
Thanks for everyone's reply, was speaking to a ARB rep at 'Expo' at Landcruiser Mountain Park (is the 'Park' really necessary) and he said that ARB make an exclusive turbo timer for GU's which can deal with the sub tank light as well as being compatible with the computer and immobiliser.
AnswerID: 56991

Reply By: Peterd - Wednesday, May 19, 2004 at 18:33

Wednesday, May 19, 2004 at 18:33
Turbo timers are good in that if you forget to let the turbo cool down it will keep the engine running to allow the turbo to cool down if you have been travelling over 80km/hr. Read your owners manual and it should tell you how long to keep the engine running.
AnswerID: 59298

Reply By: Cobra - Wednesday, May 19, 2004 at 19:27

Wednesday, May 19, 2004 at 19:27
I have been led to believe that if you use a turbo timer you can be booked. Reason is that the motor is running, the vehicle has no-one in charge, it is in neutral. Also the insurance claims that if the motor is running, no-one is in charge, it moves and damages another vehicle etc, then you are liable
AnswerID: 59305

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