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2001 TB48 GU Patrol
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Discussion Starter · #1 ·
Hi all I just wanted to say I had a very successful morning changing glow plugs on the zd30, all old ones removed with tips in one peice just number 4 was slightly worn. Car has done 170000 and not sure if they are original or not. I also cleaned the intercooler with thinnerrs got all the thinners out but It ran rough for a second or two, must have been the fumes from thinners. Thanks for all the help any one has given about changing glow plugs as it made the job a whole lot easier. :)
 

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2001 TB48 GU Patrol
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Discussion Starter · #3 ·
Bosch ones, trade price 19.95 each
 

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Be interesting to see how long the bosch last as compared to originals as I just swapped my sons out and they cost $66ea.....................:(
 

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2001 TB48 GU Patrol
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Discussion Starter · #6 ·
I know a fella with a account at repco
 

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Will be replacing mine this week with HKS Steel Tips CP-73 i think cost $30 each trade, Hopefully get mine out in one piece, patrol still starts good but replacing as a maintenance. Is there anyting need to be careful with.
 

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nissan patrol gu
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Bosch $19.95 units

Bosch ones, trade price 19.95 each
Hi, have been doing a bit of testing ceramic NGK's versas metal tips.

First lot of metal tips survived about 700 starts......

The second lot is well over 1000 starts and going OK - but, I now employ a timer system to only hold the glow plugs on for some 30 seconds.... not 5 minutes as the standard Nissan installation employs.

Have been told there is a new Italian metal tip glow plug about to hit the market that is supposed to be ' super-duper'. Will post findings when I get the nod to pick a set up.

Would be interesting to see how long the Bosch units operate before the heating element becomes U/S. My experience is , all four glow plugs 'die' relatively close to each other (time wise), leaving you with a ZD30 that winds over 4 or 5 times before it starts and a large puff of black smoke from the exhaust.

At $19.95 you can afford to replace them at each service.

My 2 bobs worth.
 

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I know its an old thread but i thought it was a good place to ask:

Is it a big job to replace the glow plugs on the ZD30, I'm thinking of sourcing some steel tipped ones and fitting a timer?

The truck has just passed the 100,000kms. Is it an urgent preventive fix at this point?

If its straight forward with simple tools i'd be keen to give it a go. How many hours would a mechanic bill to do the plugs if i wait until next service.


Regards,

Grogey
 

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I did mine at a 100 000ks just a preventative maintenance as well. Glad I did, tip on number 4 was missing. Car runs fine, so I don't think I have any damage, well none that is apparent at the moment and I have done another 15 000 since then.

Easy job to do just a little bit of disassembly, intercooler, inlet manifold, buzz bar etc. most importantly before you start disconnect the battery. You will also need a thin walled deep socket, size 12 from memory to remove the plugs. I brought a set from repo for about $60 bucks and have had heaps of use for them.

I haven't worried about fitting the timer, I have a spare set on hand and will just change them when they give up the ghost.
 

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My GU starts immediately on the first crank most times but with the ks it's done maybe I should replace the plugs. Do the plugs affect the way the engine runs after start up?
 

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.......................

Easy job to do just a little bit of disassembly, intercooler, inlet manifold, buzz bar etc. most importantly before you start disconnect the battery. You will also need a thin walled deep socket, size 12 from memory to remove the plugs. I brought a set from repo for about $60 bucks and have had heaps of use for them.

.............
Thanks ******,

Sounds like a fairly big job.When you say buzz bar do you mean the connections from glow plug to glow plug? Also does the actual entire intake manifold need to come off or is it just the throttle body that bolts onto the manifold?

When it comes to removing the glow plugs is it a mater of disconnecting and removing in a similar way to a spark plug? And is there a chance of breaking the glow tip in the removal process? Which glow plugs did you use?

Did you replace all gaskets with new ones before reassembling manifold components.

Cheers,

Grogey
 

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Glow Plug recommendations

Hi,

Anyone recommend good quality metal tipped Glow plugs?

Bosch
NGK
or whatever

Where to purchase in Brisbane?

Regards,

Grogey
 

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‘97 GQ TD42 Wagon n/a....Turbo coming 🦾
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Hi,

Anyone recommend good quality metal tipped Glow plugs?

Bosch
NGK
or whatever

Where to purchase in Brisbane?

Regards,

Grogey
X2

I'm looking to replace mine but not sure what brand either.

Also, is there a wiring diagram you all follow for the timer circuit if using metal tips.

Thanks heaps.
 
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