clean just inside exhaust tip.

[Husbandofstinky]

Well I know the usual, autosol etc. The shiny bit is not a problem.

The problem I have is following change over from a standard system to a Milltek system with 'Jet' pipe tips. As these 'flair' out internally to the tip, you can see all the muck and crap before it straightens up and goes into the box.

To describe the soot build up, it is black and is a kin to limescale - very nasty and hard stuff despite frequent cleaning.

I will try some wonder wheels on it tonight (picked up from another thread) and possibly some cillit bang.

I think this is only a problem with aftermarket exhausts and not the o/e one so expect any responses to be limited.

even tried a screwdriver (very carefully) on it to see if it would pick off - like a limpet!

 

[az_mk]

"Leon PD150 Cupra Stage 2 (work), Honda Accord Type R (weekends), Astra diesel estate (Tesco's carpark), Honda Fireblade (fun) and Honda Blackbird (pillion). "


you foooooking legend!

 

[Jace]

You got a pic ?

 

[Husbandofstinky]

Not at the mo (away this weekend) will try ASAP early next week.

I tried wonder wheels last night - it shifted a bit of it, but not the scaly stuff.

Will have another go when I get back Monday.

 

[mr_D]

i cleaned mine the other day with some really fine sand paper. and some water, gave me a nice shine and cleaned it up good

 

[Jace]

Did this on a mates A3 yesterday




3yrs worth of soot

10 minutes with Megs Wheel Brightener, Clay, wet & dry & Menz Power Gloss

 

[Husbandofstinky]

Pic of the crudded exhaust.

Not very nice!

 

[CHR15B]

When you clean it inside... it'll be black again after about 50 miles or so anyways?

Mines is a nightmare to keep clean inside.

 

[mr_D]

mine is big and easy to clean because i can get my hand right in side it.

 

[Deleted member 19366]

Wire wool n elbow grease used to work on my old exhaust.

 

[Husbandofstinky]

Yes it will get black in 50 miles, so what's the point in cleaning a car if its going to get dirty anyway? Exactly.

Wonder wheels did a good job, but its gone as far as its going to get. I haven't tried Cillit bang yet - it may or may not work - who knows but its worth a try.

I think that if there is a way to disolve the 'scale' would be the way forward. Physical removal (via screwdriver) proved exceptionally difficult.

I don't know if there is any nastier acidic stuff other than wheel cleaners easily available?

 

[tonipieleanu]

Autosol Metal Polish or any metal polish I think will do the job.

 

[ChrisGTL]

Have you tried a white vinegar?

 

[Gm8]

mr muscle oven cleaner and a toothbrush ( wear gloves)

 

[Husbandofstinky]

Autosol wont touch the scale on the inside as per piccy.

I will try out the white wine, mr muscle idea though.

white wine works really well on limescale (needs an overnight soke with a cloth/tissue).

Times been a bit of an issue at the moment, car is kept clean but this sort of detail is on hold till I remember and give the job the attention it deserves.

Will keep this one posted though

I just wonder where it came from in the first place?

 

[deadeyejim]

I've a similar issue, but it only happens just inside the lip of the twinjets. Very messy in there and hard to shift. When it got really bad on the outside it was megs metal polish and hard graft to get it cleaned up, oh and very carefull use of a stanley knife blade to remove the top layer.

Will be interested to know if you find a good solution

 

[Husbandofstinky]

No solution just yet.

Tried white wine vinegar - no good Chris

Tried Cillit Bang - no good either (Not impressed by Barry Scott's adds!)

Both were soaked into a rag and stuffed down the pipe - with more laden into the rag in situ and left over a couple of nights.

Not touched it at all.

Best results to date were the ally wheel cleaner - but it didn't get the tough stuff off.

 

[ChrisGTL]

Acetone then. Its just getting hold of it, not sure if DIY places stock it??