Go Back   The Navara Forum > D22 > D22 General Chat

Reply
 
Thread Tools Display Modes

ZD30 De Carbonize
  #1  
Old 04-09-2019, 12:03 PM
Oldie's Avatar
Oldie Oldie is offline
Senior Member
 
Join Date: Sep 2014
Location: Fremantle WA
Posts: 322
My Mood:
Default ZD30 De Carbonize

I need some advice.
I've been told by a mechanic mob, that my old motor will run better if I do a de carbonize.
They hook it up to a machine and I guess it blows hell out of the motor,
Any one done this and how did it go ?
My motor runs ok and has done near to 470K
Not sure I want to do it if it's running good.

Cheers
__________________
Never believe life begins at 40, it's actually just a rapid decline to old age LOL
Standard 2003 duel cab ZD30, TJM Snorkel, Forefront winch version intercooler, no lift but set of iron man plus helpers on rear springs. Standard 265/70/16 wheels & AT tyres, GME TX3120S UHF radio, StrikerB2 aerial for mobile phone.
Reply With Quote
Sponsored Links

  #2  
Old 07-09-2019, 12:34 AM
Old.Tony's Avatar
Old.Tony Old.Tony is offline
Administrator
 
Join Date: Oct 2009
Location: Mid Coast Region, NSW, Australia
Posts: 15,242
My Mood:
Garage
Default

You might consider fuel injector cleaner for the fuel system and a manual clean of the intake manifold.


It's not a race car, running the engine at peak RPM to "decarbonise" it will possibly kill it. I bet they ask you to sign a waiver before doing it, so that if the engine blows up, they can hand it back and go "well it was almost gone anyway".


If it ain't broke, don't fix it.
__________________

Check out the FAQs by clicking here!



"Money can't buy happiness, but it does make misery a lot easier to deal with."
Reply With Quote

  #3  
Old 07-09-2019, 01:05 AM
Czechmate's Avatar
Czechmate Czechmate is offline
Senior Member
 
Join Date: Apr 2016
Location: South Australia
Posts: 357
Default

"If it ain't broke, don't fix it."

Best bit of advice ever

Use that time to go fishing or motorbike riding or somethin instead :)
Reply With Quote

  #4  
Old 21-09-2019, 11:55 PM
Boogieboots's Avatar
Boogieboots Boogieboots is offline
Member
 
Join Date: Jun 2016
Location: Byford WA
Posts: 277
My Mood:
Garage
Default

If they are decarbonising the intake manifold I would ask how they do it. Maybe some chemical into the intake? The tutorial thread on here to remove and clean the manifold is pretty thorough and easy to follow
__________________
2005 d22 Dual Cab ZD30, 280k and counting....
Reply With Quote

  #5  
Old 22-09-2019, 12:43 AM
tweak'e's Avatar
tweak'e tweak'e is offline
Advanced Member
 
Join Date: Oct 2008
Location: New Zealand
Posts: 4,567
Garage
Default

Quote:
Originally Posted by Oldie View Post
I need some advice.
I've been told by a mechanic mob, that my old motor will run better if I do a de carbonize.
They hook it up to a machine and I guess it blows hell out of the motor,
Any one done this and how did it go ?
My motor runs ok and has done near to 470K
Not sure I want to do it if it's running good.

Cheers
if its machine i think it is (which basically pours a chem down the motor while its running) one problem is they need to disconnect the cat off the engine otherwise it will clog up.

a better way is to use water/meth injection. that will clean it but a lot slower.
__________________
D22 ZD30 egr+butterfly mod, 2" lift extra leaf springs, enk-tek dump pipe, 2.5" exhaust.
D23 no mods.......yet.
single cab workhorse, to muddy to clean
Reply With Quote

  #6  
Old 22-09-2019, 03:47 AM
Czechmate's Avatar
Czechmate Czechmate is offline
Senior Member
 
Join Date: Apr 2016
Location: South Australia
Posts: 357
Default

If you're really set on getting all the crud out of the manifold, the only way to do it properly without any BS is to remove it and scratch the gunk out
Reply With Quote

  #7  
Old 22-09-2019, 08:53 AM
KevinE KevinE is offline
Senior Member
 
Join Date: Dec 2011
Posts: 395
Default

I found new manifolds for $395 using Mr Google without trying too hard. How much are these guys quoting you to clean the old one Oldie?
Reply With Quote

  #8  
Old 23-09-2019, 09:29 AM
Horatius Horatius is offline
Member
 
Join Date: Sep 2016
Location: Aus
Posts: 205
Default

Quote:
Originally Posted by Oldie View Post
I need some advice.
I've been told by a mechanic mob, that my old motor will run better if I do a de carbonize.
They hook it up to a machine and I guess it blows hell out of the motor,
Any one done this and how did it go ?
My motor runs ok and has done near to 470K
Not sure I want to do it if it's running good.

Cheers
I think OldTony offers good advice on this. You answered your own question at the end there anyway. If it ain't broke don't fix it.

Though much also depends on exactly what they're cleaning. If it's the inlet manifold, do it manually.

I'm a bit wary of these sorts of things, especially in older vehicles. I put some chemical oil flush through an old diesel I had once. Worked a treat, the amount of rubbish and build up it collected was really something.

Problem was that at around 400,000kms, it rarely needed oil in between oil changes.Yet after the flush it was using a litre every couple of thousand or so lol! (from memory, whatever it was lots anyway).

If injectors or valves have problems, there is no easy or cheap way to fix that IMO.

Last edited by Horatius; 23-09-2019 at 10:25 AM.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT +1. The time now is 02:27 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
| Home | Register | FAQ | Members List | Calendar | Today's Posts | Search | New Posts |