Isuzu Trooper Owners Club UK™

TDR · * Joined: 19 Oct 2006 Posts: 27 Location: South Wales

Unfortuneately blown the head gasket on my 1995 3.1 Bighorn Crying or Very sad

, the top hose had a slight leak that due to the foam outer i could not see and I am not mechanicly minded Embarassed

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it is now in the garage for repair the mechanic has mentioned that due to the turbo timer if he needs to turn off the engine a bit quick when testing the new gasket etc. the engine will run (most of the time for approx. 40 seconds or so) is there a way of dissconnecting it temporarily, or is there really a need for it in the first place Confused

. any advice would be most appreciated

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gary820 · Posted: Mon Apr 30, 2007 23:07 Post subject:

do you have the instructions for the timer? if not do you know the model variant you may be able find instructions on the internet? does it not have a fused supply to the unit that you can take out while it's in for repair?

:::Matski::: · Posted: Mon Apr 30, 2007 23:16 Post subject:

It is illegal to leave a car running unattended in this country, but they are good for the turbo.

If it was me I would disconnect it and make a point of idling for a while after a hard drive.

markymoan · Posted: Tue May 01, 2007 0:55 Post subject:

I like turbo timers, they can save a lot of money by saving a turbo from burning out Very Happy

Tell him to pull the wire of the injector pump Laughing

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dxmedia · Posted: Wed May 02, 2007 15:24 Post subject:

The mechanic who is doing your head gasket doesn't know how to switch off an engine??? This not rinning alarm bells for anyone else??

The turbo timer will be on the stop solinoid on the fuel pump.

Am I right in thinking that taking the batteries off will stop the engine? Don't know if there is a meachanical override for the fuel stops on ther
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TDR · * Joined: 19 Oct 2006 Posts: 27 Location: South Wales

Thanks all for your advice Very Happy

, as I said I am not mechanicly minded can anyone tell me how to dissconnect the turbo timer,I do not drive it hard so it should not be a problem.

markymoan · Posted: Tue May 08, 2007 19:15 Post subject:

Does it not have a button on it to switch it off Question

If not give us the model and we will do our best to find out Smile

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Ianominous · Newbie Joined: 04 May 2007 Posts: 7 Location: NZ

Mine has a unit mounted under the dash with an on-off button. You might too. Also... I was told that in these size vehicles the turbo timer actually could do more harm than good. They were designed for diesel trucks when revving hi and pulling enormous load (ie to top a hill) and then stopping. Only if the revs are over 2500 and you stop instantly would this really stress your turbo out. Otherwise if you slow revs before you sop it should be fine.

That's what I am told anyway... sure to be other opinions on this...

tofer · Posted: Tue Jun 26, 2007 10:52 Post subject:

Not quite the same but I have a turbocharged petrol car and I always idle it for 10-20 seconds before killing the motor. AFAIK if you switch off whilst the turbo is still spinning you are cutting the oil supply to the turbo instantly whilst it is still turning at a fair old rate. And as some other people on here will testify it's a pig to change the turbo on a trooper, especially a 3.1td.