cost of a carbon clean??

[Rusty86]

Hi chaps,

I'm wondering if there is any merit to getting my ZD30 fully cleaned of carbon and soot build up in the inlet manifold before I block egr and install dawes, needle and catch.

I was wondering what this would cost and what are the particular areas that would have build up? Is this something a local mechanic can do or does it need to be taken to a specialist?

Thanks in advance for your responses :)

[megatexture]

it may be something you can do yourself alot of ppl use break cleaner to clean all the parts specialy intercooler and clean the maf also

[timbar]

Hi chaps,

I'm wondering if there is any merit to getting my ZD30 fully cleaned of carbon and soot build up in the inlet manifold before I block egr and install dawes, needle and catch.

I was wondering what this would cost and what are the particular areas that would have build up? Is this something a local mechanic can do or does it need to be taken to a specialist?

Thanks in advance for your responses :)

Not sure bout the zd30 but my td42 was worth doing it cost me around 180 from memory i was getting around 330kms to the tank but after the clean i was gaining 50kms to the tank before i rolled it over i was getting around 650km to the tank well worth the 180 hope this helps

[Rusty86]

Thanks fellas

Timbar, wow! that's a big difference, I think it would definitely be worth looking into. Won't be doing it myself as I'm not that mechanically minded and I'd prob screw something up lol but that's not too expensive....I had in the back of my mind it was heaps more $$...reckon I saw a thread/post somewhere where a bloke had paid closer to $1000 but maybe this was a much bigger clean out. I just figure what's the point of blocking egr when all the build up just stays in there and who knows where it would end up

Cheers

[boots]

What year / model is it and how many kms you done Rusty86

[Rusty86]

What year / model is it and how many kms you done Rusty86

2004 GUIII Auto roughly 204,500kms ZD30

Cheers

[megatexture]

ye that many k's will need a good clean in the Nissan Patrol Reference Document it shows the carbon build up of a truck that had done 85'000km and it was prity bad.

[boots]

Yep get it done Rusty86 . cleaned my intake manifold / pipework and replaced intercooler at 90 thou km on mine. badly gunked up . did the nads almost straight after it . awesome now .

[Rusty86]

Yep get it done Rusty86 . cleaned my intake manifold / pipework and replaced intercooler at 90 thou km on mine. badly gunked up . did the nads almost straight after it . awesome now .

What did it cost you boots or did you do it all yourself?

Yep, I've seen the pics of manifolds taken apart...not pretty!

Cheers for the responses guys :)

[boots]

Did it myself Rusty86 and I have the same model / year as you mate . Fitted the boost and egt guages first , ic second . drove it a month and was horrified at what the guages were telling me . then did the boost mod .catch can . exhaust . ohh did the intake clean when I did the ic replacement . I am wrapped in the performance of 4b now , feels like a new toy again and I've owned it four years mate , so I hope this gives you inspiration to get the mods done mate or do it yourself . goodluck with it .

[Rusty86]

Cheers mate,

Got the gauges already, won't be doing it myself so getting the necessary parts together then gonna find a mech to install everything. Def going to try and get a good clean done at the same time, looking forward to a 'new' truck haha

Cheers,
Rusty

[Rusty86]

Bit of an update, I had the Patrol in for a service today and spoke to my mechanic about doing a carbon clean. He thought there wouldn't be much in there but I told him of some of the images I'd seen and the amount of gunk that would build up! He ended up cleaning the throttle body and intercooler pipes and was shocked at the amount of black gunk that had built up. He removed a few decent tablespoons worth and can now see the merit in cleaning the inlet manifold. Whole service was about $400 so it was included in this.

I also asked him if he was comfortable installing dawes, needle, catch and blocking egr and he's fine to do it which is great. I'd find the best references/installation guides from the forum for him to follow if he got stuck, and before blocking the egr I'll get him to get stuck further into the engine and clean out the remainder of the carbon build up in the inlet manifold. I was told the clean would roughly be a 2 hour job which sounds about right.

With what was cleaned out today the EGTs are already 30-50 deg lower which is more affect than I thought. So I wonder how much more the egts can be lowered after the full clean.

He also used a different sort of engine oil, usually I was using Valvoline Super Diesel but on this occasion he used SynPower MST 5w40 fully synthetic which reduces carbon build up. Can't say I've heard of it, has anyone used this before??

All up, very happy with how the car is driving, feels better than ever! :)

Cheers,
Rusty

[timbar]

Sweet mate keep us updated on the kms/ economy should improve as mine did

[twisties]

I had planned today to get stuck into cleaning the oily crap from inside the IC and also removing the inlet manifold to clean it but once I got the IC off, I had second thoughts about the manifold.
At 144,000 on the clock and no guarantee it's been cleaned by previous owners (only got it a week ago), I really want to get in there but I've got 0 idea where to start with removing it.
In the mean time I did flush a LOT of oily residue from inside the IC, which also has the expected oil stains on the outside from leaking so that's definitely on the replacement list.

[Rusty86]

I had planned today to get stuck into cleaning the oily crap from inside the IC and also removing the inlet manifold to clean it but once I got the IC off, I had second thoughts about the manifold.
At 144,000 on the clock and no guarantee it's been cleaned by previous owners (only got it a week ago), I really want to get in there but I've got 0 idea where to start with removing it.
In the mean time I did flush a LOT of oily residue from inside the IC, which also has the expected oil stains on the outside from leaking so that's definitely on the replacement list.

Speaking with Chaz, he mentioned that instead of having to get right into the manifold you could use an EGR cleaner (Wynn's EGR3 I think, from Repco) in a spray can, 2 cans, half each time spraying it with the throttle at about 2000rpm. Can't remember where he said it needed to be sprayed, but over this period the gunk would come out of the exhaust and clean everything effectively. I originally didn't think this would be a viable option because I wasn't sure if the gunk would come out or be caught up somewhere else, but it sounds like looking into, and would be a lot cheaper than cleaning the manifold itself which is apparently quite time consuming.

Chaz mentioned most of the gunk would be in the throttle body which is an easier job I think.

Hope this helps, Cheers

[twisties]

Awesome mate, thanks for that. I'll throw chaz a PM and find out exactly how to go about it.
Got a Repco near my work that I could visit before I head off home tonight.

The throttle body did look like an easier job but a suspension lift and an already large vehicle makes accessing things a bit of a challenge lol.

[Rusty86]

Trying to track down the ERG3. Wynn's SA rep won't sell it directly and the best he would do is contact the local Nissan dealer who they can supply it to, but would mean I'd need to get the job done there (which shouldn't take too long or be too expensive but I bet it will be).

Repco said I'd need to buy a whole pallet and said try Sprint. The bloke at Sprint was very helpful and got back to me later. He had contacted Wynn's and they wouldn't let him stock it on his shelf but he suggested the best bet would be to try a mechanic who may be able to buy directly from Wynn's in smaller quantities. Looks like it's who you know not what you know... But Wynn's definitely don't want it available at retail outlets.

Talking to the Wynn's bloke was interesting because he said that the EGR3 was 'volatile' and they didn't want to be responsible for damaging engines, but EGR4 had been brought out which is an updated formula and fine to use. I questioned him on this because the info sheet online from Wynn's is word for word the same for EGR3 and EGR4, and I wondered why they had been selling EGR3 if it was so bad. There are blokes on the Patrol4x4 forum who had used EGR3 which seemed to work fine. Finding where to buy it seemed to be an issue too and the posts I was reading were back from 2011.

Did you have any luck sourcing it twisties?

[fishnsurf]

looks like an interesting product i am looking at getting inlet manifold cleaned i wonder if this product would do the job instead of paying someone $350?
i wonder how it goes on a badly blocked inlet , and how do u know how dirty your inlet manifold really is (can you tell by EGTs)
where does all the crap go??
does it clean the intercooler???
so many questions

http://www.wynns.net/product_files/EGR4%20Spray%2023478%20PIS.pdf

[Chaz]

Hi Rusty,
It sounds like you hit a similar wall as I did when searching for the Wynns EGR3. I don’t understand why it’s sold in the eastern states and not here in Adelaide by REPCO. If you know someone in Sydney, they may be able to courier some over for you, but that sounds like more trouble than it’s worth.

I’m considering to try some petrol in a very fine spray bottle and apply it in the same way, by spraying a petrol mist directly into the throttle body with the rpm up. This should do much the same thing and whatever dissolves and goes through the combustion process should be burnt up and come out in smoke. I’m also seriously considering water/methanol injection, which would achieve much the same results over time while reducing EGT’s, increasing power output and cleaning the intake system all at the same time.

[tony78]

this stuff sounds like the go but as fish andsurf says how do you know how dirty your intake is.i think it is more of an anual service thing rather than a quick fix to a major blockage.still worth a go though i think

[tempestv8]

Does anyone know what would it cost to have the intake manifold cleaned out by the Nissan dealer or a competent workshop? I am researching for a used GU5 or later (CRD motor) and am wondering if high mileage examples will require an intake manifold clean. I don't have the skills or tools or facilities to be able to do this, so I need to factor in the cost of getting this done properly by professionals.

Thanks in advance!

[Rusty86]

Not sure of exact costs, a Nissan dealer may be quite expensive, and your local mechanic less but still probably a few hours work. My mechanic said he could do a manifold clean, and install Dawes and Needle valves and block EGR for around $250.00 which sounds pretty good.

I would say that if it has never been cleaned or had the EGR blocked from new the throttle body and manifold may be very gunked up. After a clean and EGR block I'm under the impression that it should keep clean and you won't need to do much maintenance in that regard.

[Rusty86]

Dawes valve finally arrived the other day so I'll be getting it installed tomorrow along with Needle and EGR block. I've decided to just get the mechanic to take apart the manifold and clean it directly, I guess this will be the most thorough and I'll know it's clean, and for around $250 I figure it's not too bad an outlay for peace of mind.

My mechanic couldn't get the EGR4 product and the only similar thing he had was for petrol engines. I reckon the best way to get the EGR4 would be through a Nissan dealer (as long as they do the work), or apparently it is more readily available in the Eastern states so you may have more luck if you live there or know someone who can source it and ship it over.

I'll let you know how everything goes after tomorrow.

Cheers :)

[fishnsurf]

sure all will go well and $250 is an awesome price...... i just got a price today of $585 just for inlet clean $89 included for gasket kit........ i think this is a bit steep

[twisties]

I called a local Repco in Melbourne who knew of it but never stock it. They contacted the Wynns Vic rep for me who wouldn't let them stock it but he gave me the rep's mobile number.
I haven't chased it up actually, got too swamped with work but having seen the responses from elsewhere, I'm not too confident I'd be able to get it.

[Rusty86]

I called a local Repco in Melbourne who knew of it but never stock it. They contacted the Wynns Vic rep for me who wouldn't let them stock it but he gave me the rep's mobile number.
I haven't chased it up actually, got too swamped with work but having seen the responses from elsewhere, I'm not too confident I'd be able to get it.

Yeah I'm sure you'll get the same spiel I did from the rep, and they'll point you in the direction of a dealer. It'd be interesting to know how much it would cost getting it done through the dealer.

[Rusty86]

sure all will go well and $250 is an awesome price...... i just got a price today of $585 just for inlet clean $89 included for gasket kit........ i think this is a bit steep

Yeah this was just a rough estimate so hopefully it doesn't take him much longer!

[fishnsurf]

Yeah I'm sure you'll get the same spiel I did from the rep, and they'll point you in the direction of a dealer. It'd be interesting to know how much it would cost getting it done through the dealer.


Taipan exhaust on the gold coast do the wynns clean when inlet not too blocked..... think he told me about $120 that was 3 weeks ago but now i went with an opposition exhaust i am a bit embarrassed to go back to them....

[Rusty86]

Everything done today and wow, it's like I'm driving a different car!! I'm very happy, Dawes and Needle work great and EGTs are much much lower, down to about 230-250 deg 60km/h around town.

My mechanic found a lot of carbon build up in the manifold, similar amounts to the throttle body. This would contribute to the lower EGTs I'm sure, but it took my mechanic much longer than he thought. He was kind enough to charge me what he quoted (even though I was protesting trying to pay more or what it really cost) so all up $250 for the manifold clean and another $30 bucks to install the Dawes, Needle and block EGR. I think though he would probably would have spent at least a couple of hours more on it, so probably still a fair price would be around $400 or so. He said he was putting it down as a learning experience - what a legend!! He also took the time to come for a drive with me to check the boost levels etc and make sure it was all working ok.

I'm definitely glad I got the manifold done just for peace of mind but obviously it's had an affect on the engine. I would imagine stock engines having done around 200k would have similar build up of carbon so would be worth doing.

Cheers
Rusty :)

[dhuey85]

Yeah I thought 2hrs was optimistic. I'm fairly handy on the tools and it took me all day. Mine looked like the picture in the reference documents after 150k and I defiantly noticed a difference when I did it.

Dhuey

Sent from my GT-I9100 using Tapatalk 2

[Rock Trol]

My mechanic put a can of Wynns EGR 3 through the intake manifold today and the car runs a lot better. Seems to accelerate a little quicker than before, feels livelier. When the EGR 3 was being added the car blew a lot of dark particulate matter out of the exhaust. It was certainly doing something, that's for sure. I plan to have another can added next service. Might do it as a regular service item.

[4wdreaming]

Was it easy to get it in the manifold when it was running??

[Rock Trol]

Not too hard. Unbolt the 4 bolts that hold the intercooler to the frame so you can get a little play and then disconnect the IC hose from the intake manifold. With the car revving at a steady 1500-2000 rpm he just sprayed 1-2 second bursts in the intake hose leaving enough time for the engine to go back to a normal idle before re-spraying. Only problem is that you cant buy this stuff in the shops. If you spray too much in it will cause the engine to run away and might damage it. Wynn's only sell to the trade.

I have read on the web that they are now marketing an EGR 4 product that is less volatile than EGR 3 but I am not sure if they sell to public either. The kit from Wynn's also comes with a bottle of injector cleaner/algaecide.

The other benefit is that it also cleans the valves and cylinder head.

[threedogs]

Doing it on the patrol is a bonus and time saver, I must do this before I start going fishing.
explains why hwy miles clean them out. I have about 220k and its never been done.
Ill be removing mine I think to clean it, but will talk to mechanic for his thoughts
I'll take before and after pics as well

[Rock Trol]

I was thinking of removing and cleaning as well but had a look at it and decided the job was a bit too big for me. It looks like a PITA on the CRD's. Asked my mechanic and he was not too keen, said it was a big job and expensive. He then suggested the Wynn's stuff.
I had asked other mechanics about the CRD's and they all said it wasn't as big a problem with the CR's as with the Di's. This included Cross Country who installed my intercooler. They said for CRD's it wasn't worth the effort but I know they pull off the Di manifolds and clean those (friend has had his done). So far this seems to have made a difference so with regular treatment I am hoping to slowly clean the system out (EGR has been blocked).

[threedogs]

As a DIY job what sort of time frame are we looking at if all goes well.