Diy inlet valve cleaning

R0cket

Active Member
VCDS Map User
has anyone tackled cleaning the inlet valves themselves either with walnut blasting or another method?
 

o_dungey

Registered User
I did see on a thread somewhere someone had done it themselves using a wire brush but not sure how it went
 

o_dungey

Registered User
surely you must be able to clean at least the majority off yourself, thinking about giving it a try soon
 

paddy

Registered User
TBH i wouldn't think its worth it. Access is so limited that you are only going to get a proportion of it and as someone who has cleaned up more valves than i care to remember you are really going to struggle to chip away at the burnt on coke manually, its absolutely rock hard to the extent that i have in the past removed valves and turned them in the lathe to get the crud off.
Go for a vapour type clean, its cheap, takes half an hour and will benefit the valve seats faces and exhaust ports etc as well as the tops of the pistons. I did mine that way about 20k miles ago and it put the orange engine light out that had baffled Audi themselves for 18 months and half a dozen visits before that.
 

findalex

Registered User
I plan to use CRC GDI Intake Valve Cleaner the next time I'm ready for an oil change. It's got pretty decent reviews and it's basically techron (PEA) formulated for the intake so should be safe.
 

paddy

Registered User
yes
 

R0cket

Active Member
VCDS Map User
I’m almost starting to think I should take the head off and replace the valve stem seals while I’m at it. It’s done 104k now. Must be easier to clean the valves then.

I’d already committed to a cambelt which it’s sorn and stripped down to do the inlet valves as well as a sump clean and oil pickup replacement
 

paddy

Registered User
No amount of hydrocarbon cleaning or blasting will substitute a full strip down but either will be adequate and a lot easier.
 

SootySport

Registered User
Inlet clean on a 2.0 TSI E888 engine shown here,
 

paddy

Registered User
I would add that Hydrocarbon cleaning will clean your injectors as well which should be done every 40k or so ,another plus over walnut IMHO
 

TF_Si

Registered User
Hydroclean is a waste of time. A proper carbon clean with Tunap gives very very good results and is the only system thats dealer approved

before and after images attached
 

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paddy

Registered User
Can we see your before and after images to confirm hydroclean is a waste of time please.
 

TF_Si

Registered User
Can we see your before and after images to confirm hydroclean is a waste of time please.

Paddy, I know a breaker that stripped a vehicle that had done a few hundred miles since being terra cleaned & when he opened it up it was still coked up. You can see from the before and after pics I've posted of a proper carbon clean
 

R0cket

Active Member
VCDS Map User
If the inlet manifold isn’t coming off afterwards how can terraclean claim the valves are clean?
 

paddy

Registered User
Coked up valves have associated problems like rough idle, smoking, poor fuel consumption. whatever remady you use will either fix the problem or not regardless of what the parts look like after.
I had an engine management light come on at 50k miles. (rich at idle) and it was smoking on hard acceleration,j It went in to a main dealer 3 times and an indi 4 times over the next 2 years. No one could put the light out for more than 120 miles. It had countless parts from solenoid valves to charcoal filters /canisters, plugs/MAF and so on and eventually i was talking to guy with and independent Mini dealership and he said bring it in to me and i will hydro clean it, apparently Minis are really bad for this .
Took it in, the light went out, been out for 20k miles now, rolling road showed 381bhp. tick over is such that you might think it had stalled its so smooth and it stopped smoking.

Now people can say its a waste of time and money but it worked for me.
 

ch1z64

C'mon you's bhoy's in Green
VCDS Map User
Silver Supporter
I had mine carbon cleaned easily a year ago by a sponsor on here and once I picked car up what a difference I noticed especially in the smoothness off the Engine
 
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