Cleaning carbon build up

[vRSAlex]

Was you shaving while rebuilding the head Alex? (Bottom right of pic  )

Mach 3 turbo 

It's the scraper that was there.

Took 3 coats of paint to get the black off the wall too!

[john a]

I fully cleaned and rebuild by head around 10k ago and its already getting quite caked up again.  Been running a catch can for over 20k so that doesn't help at all.

Took around 5 mins on each valve to get them clean.  Old trick of putting the valves in a pillar drill and using brake cleaner soaked scotchbrite.

Pic of my tray once I cleaned the rest of the head out:

Bloody hell, why's the thanks button at the top and not the bottom of the post?! Thanked the wrong post now   
Sounds like it isn't a massive undertaking except I am blessed with neither the expertise or the right tools to be able to do such a job. Is it something any competent specialist can be trusted to do.
Oh and Gray, I thought it would get burned away, I also already have rather sooty tailpipes!

[Tfsi_Mike]

isnt it seafoam btw?

[Tfsi_Mike]

I fully cleaned and rebuild by head around 10k ago and its already getting quite caked up again.  Been running a catch can for over 20k so that doesn't help at all.

Took around 5 mins on each valve to get them clean.  Old trick of putting the valves in a pillar drill and using brake cleaner soaked scotchbrite.

Pic of my tray once I cleaned the rest of the head out:

Bloody hell, why's the thanks button at the top and not the bottom of the post?! Thanked the wrong post now   
Sounds like it isn't a massive undertaking except I am blessed with neither the expertise or the right tools to be able to do such a job. Is it something any competent specialist can be trusted to do.
Oh and Gray, I thought it would get burned away, I also already have rather sooty tailpipes!

I'll take the thanks for making a funny 

[s3dubbin]

If the cleaners done anything then bloody hell my head must have been a right mess inside. My s3 had three doses of BG44K in 10k miles and inside was still coked up with solid muck. I got fooled by the sales patter I think. Stevie. 

[luckyGti]

Terraclean 

[scopes]

Seems to be the way forward!

Anybody know where has this service?

[Hedge]

How the hell is Terraclean going to clean your inlet valves of all their sh*te? 

[luckyGti]

How the hell is Terraclean going to clean your inlet valves of all their sh*te? 

I have no idea but it will give your engine a thorough clean.

[Hedge]

Fill your boots.

[luckyGti]

Not my cup of tea, just a suggestion for others.

[Saintsteve]

Gonna have a go at this as although mine just passed its MOT, the Readings for hydro carbons were 183ppm which is near the limit of 200. For the sake of £85 , I've found a local guy in Hampshire to give this a go.

CO was low at .0.18%
Hydro Carbons PPM 193.  Limit 200. 

Car mileage 67k.

[GTI5]

Gonna have a go at this as although mine just passed its MOT, the Readings for hydro carbons were 183ppm which is near the limit of 200. For the sake of £85 , I've found a local guy in Hampshire to give this a go.

CO was low at .0.18%
Hydro Carbons PPM 183.  Limit 200

Car mileage 67k.

183 ppm seems high, Could your map be the cause? Extra fuel to keep EGT's down?

My GTI (Stage 1) went through on the last test with an HC reading of 1 ppm.

I'm not sure about this cleaning but I guess you can post the results .

[Saintsteve]

Gonna have a go at this as although mine just passed its MOT, the Readings for hydro carbons were 183ppm which is near the limit of 200. For the sake of £85 , I've found a local guy in Hampshire to give this a go.

CO was low at .0.18%
Hydro Carbons PPM 183.  Limit 200

Car mileage 67k.

183 ppm seems high, Could your map be the cause? Extra fuel to keep EGT's down?

My GTI (Stage 1) went through on the last test with an HC reading of 1 ppm.

I'm not sure about this cleaning but I guess you can post the results .

I've sent the guy an email , so wait to hear. How can the remap cause low CO but high HC?..

Wouldn't both me high if the map was at fault? I'm confused, but I know last year my HC on last years mot was the same.
My mpg isn't too great so just me thinking whether I need to act.. Confused  

Idle speed, and performance are no issue so maybe it could be the remap?.I could call Superchips and ask whether a remap could cause higher HC over stock..unless another Tuner on here might know??

[GTI5]

Gonna have a go at this as although mine just passed its MOT, the Readings for hydro carbons were 183ppm which is near the limit of 200. For the sake of £85 , I've found a local guy in Hampshire to give this a go.

CO was low at .0.18%
Hydro Carbons PPM 183.  Limit 200

Car mileage 67k.

183 ppm seems high, Could your map be the cause? Extra fuel to keep EGT's down?

My GTI (Stage 1) went through on the last test with an HC reading of 1 ppm.

I'm not sure about this cleaning but I guess you can post the results .

I've sent the guy an email , so wait to hear. How can the remap cause low CO but high HC?..

Wouldn't both me high if the map was at fault? I'm confused, but I know last year my HC on last years mot was the same.
My mpg isn't too great so just me thinking whether I need to act.. Confused  

Idle speed, and performance are no issue so maybe it could be the remap?.I could call Superchips and ask whether a remap could cause higher HC over stock..unless another Tuner on here might know??

Was your CO 0.18% against the limit of 0.20%? My CO was 0% on that same test.

Maybe its ignition timing, could have a look at your plugs? A tuner will help.