Herbmiester 923 Report post Posted September 28, 2016 Has anyone in Wellington had their N54 intake ports cleaned? If so where in Welly and how much. Tried Jeff Gray and the Service manager said he had never heard of the process and was very skeptical that it needed to be done. 1 Quote Share this post Link to post Share on other sites
Mr Vapour 76 Report post Posted September 29, 2016 not sure what why you are wanting to get it done but go see kapati vapour blasting. Vapour blasting will do a better job of cleaning with out damaging any surfases. I have gone alot of research and have a vapour blast unit on the way from england. it will do the job Quote Share this post Link to post Share on other sites
hybrid 1043 Report post Posted September 30, 2016 lucky walnut doesnt damage metal. Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 2, 2016 Quote not sure what why you are wanting to get it done but go see kapati vapour blasting. I am unfamiliar with the vapour blast process but having spent decades using walnut media to clean brass cases I cannot see how it can damage the ports or the valves. As to the why, pretty simple really just do a Google search on the before and after pictures of an N54 Cylinder head. The combination of direct injection and an average PCV system means a lot of carbon fouling in the intake valves and intake ports. Quote Share this post Link to post Share on other sites
jom 98 Report post Posted October 2, 2016 Last time I took the inlet manifold off my 328 the ports and valves looked like new (at 180k). Perhaps because of a diet of 100% BP 98? Quote Share this post Link to post Share on other sites
zero 1162 Report post Posted October 2, 2016 27 minutes ago, jom said: Last time I took the inlet manifold off my 328 the ports and valves looked like new (at 180k). Perhaps because of a diet of 100% BP 98? Different engine 1 Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 2, 2016 Before and after. 1 Quote Share this post Link to post Share on other sites
m325i 709 Report post Posted October 2, 2016 How many Kms on that? Were you having symptoms? How does it feel now? Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 2, 2016 To be clear that's not my car, just a photo of the before and after on a US 50k mile car. I have found out First Class European in Petone can do the walnut blast for $230. Quote Share this post Link to post Share on other sites
jin108 25 Report post Posted October 2, 2016 diy it with some isopropyl alcohol is an option Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 3, 2016 Sounds messy. The walnut system is easy and proven. 1 Quote Share this post Link to post Share on other sites
jom 98 Report post Posted October 3, 2016 We used to use Redex to decoke. Favourite on Jaguar sixes... Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 4, 2016 If you watch this video it gives a rundown on how the process works. Start at around 14 mins if you dont want to watch the manifold removal. https://www.youtube.com/watch?v=NnMhNXXawjk&t=632s Quote Share this post Link to post Share on other sites
kwhelan 241 Report post Posted October 5, 2016 subaru upper engine cleaner works magic, very highly rated Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 5, 2016 So how do you use It? Quote Share this post Link to post Share on other sites
KwS 2425 Report post Posted October 5, 2016 Spray half a can into the intake with engine off. Let it sit, then start engine, spray into intake with engine running. The problem is they are a direct injected engine, meaning unlike a port injection engine there is no fuel being sprayed at the valve to keep it clean. Most manufacturers have this issue, including Mitsubishi GDI and VW TFSI. Quote Share this post Link to post Share on other sites
NakiTouring 54 Report post Posted October 11, 2016 On 03/10/2016 at 11:35 AM, Herbmiester said: To be clear that's not my car, just a photo of the before and after on a US 50k mile car. I have found out First Class European in Petone can do the walnut blast for $230. That sounds like bloody good value. I'll be keen to hear how it goes. Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted October 11, 2016 I will wait until the boss gets back as he is very good, not so sure about the staff when it comes to the complicated stuff. Quote Share this post Link to post Share on other sites
Olaf 3317 Report post Posted October 11, 2016 what about Seafoam? It works well, though unsure if folks are using it on N54s. Quote Share this post Link to post Share on other sites
NakiTouring 54 Report post Posted April 13, 2017 On 12/10/2016 at 6:51 AM, Herbmiester said: I will wait until the boss gets back as he is very good, not so sure about the staff when it comes to the complicated stuff. Hey mate, did you get this done? Quote Share this post Link to post Share on other sites
Herbmiester 923 Report post Posted April 13, 2017 Yes had it done but it looked like an average job, will not be going back. Quote Share this post Link to post Share on other sites
YevJenko 12 Report post Posted September 3, 2017 Did it make any difference to the car? Sheldon the owner of first class was good but had an accident (wrote off a kit car) and was unable to work. His lackeys were definitely monkeys. Left the pollen filter cover of my Audi, resulting in the passenger foot well filling with water during an over night storm on a roadtrip up north. When confronted about it, the lackeys tried to deny that the cars ever had a cover (Google was my friend there). I think others had similar experiences and first class went under this year. Shame really. 1 Quote Share this post Link to post Share on other sites
Gabe79 410 Report post Posted September 3, 2017 Are there any recommendations for someone who'll do this to a M54 in Auckland? Quote Share this post Link to post Share on other sites
gjm 3258 Report post Posted September 3, 2017 1 hour ago, Gabe79 said: Are there any recommendations for someone who'll do this to a M54 in Auckland? Some oother forum members have used BMWorkshop in Grey Lynn: Quote Share this post Link to post Share on other sites
Gabe79 410 Report post Posted September 3, 2017 Just now, gjm said: Some oother forum members have used BMWorkshop in Grey Lynn: Thank you for that. I'm in touch with them for something else already, so might lump this in. 1 Quote Share this post Link to post Share on other sites
