Walnut blasting

variant

RMS Regular
variant
Messages
1,653
Location
County Antrim
Drives
T5, Up Gti
Closest I would know would be fleck specialist cars in Ballymena, ex country garage technician
 

vecta2007

RMS Regular
OP
vecta2007
Messages
1,053
Location
newtownabbey
Yeah that’s perfect 👌 not to far at all , I honestly searched everywhere and couldn’t find anybody , thanks for the reply’s
 

TalkToFrank

RMS Regular
TalkToFrank
Messages
762
Drives
335i MT Touring
Dubtec Ballymoney too. Heard good things... I'll be getting mine done in a few months (n54)
 

combergti

RMS Regular
combergti
Messages
127
Drives
mk6 golf gti
Does it actually make a difference and how would you know it was needed?
 

-Pete-

RMS Regular
-Pete-
Messages
4,069
if you've seen a caked up engine, you would know how much of a difference it can make. Even just doing my intake manifold and egr valve which were caked solid made a big jump in response and MPG in my VW diesel. Went from around 40mpg to getting 66 mpg on the same run (belfast to portadown)
 

neil-c

RMS Regular
neil-c
Messages
1,585
Bump.... I think I might need my S5 (4.2 v8) walnut blasted. It's got 90k miles and had an easy life but I've got an intermittent misfire in cylinder 8 at high revs. The first 45k miles were done by a lady owner with most journeys less than 10miles so the car was just getting warm by the time the journey was over and it didn't see the top of the Rev range often. I think this could mean increased probability of carbon built up.

Checked the obvious things such as new plugs all round and swapped over coil packs (they had been replaced previously) and the misfire stays in 8. It had an air valve fault from the variable valve in the air box which was sorted by clearing out the leaves/dust etc. The fault only appears at the top of the Rev range where it flashes the engine management light but then turns off l, leaving the code logged but nothing on the dash. Next options i think are either replacing the injector or it getting walnut blasted. Any other advice?
 

Woodcutter

RMS Regular
Woodcutter
Messages
31,265
neil-c said:
Bump.... I think I might need my S5 (4.2 v8) walnut blasted. It's got 90k miles and had an easy life but I've got an intermittent misfire in cylinder 8 at high revs. The first 45k miles were done by a lady owner with most journeys less than 10miles so the car was just getting warm by the time the journey was over and it didn't see the top of the Rev range often. I think this could mean increased probability of carbon built up.

Checked the obvious things such as new plugs all round and swapped over coil packs (they had been replaced previously) and the misfire stays in 8. It had an air valve fault from the variable valve in the air box which was sorted by clearing out the leaves/dust etc. The fault only appears at the top of the Rev range where it flashes the engine management light but then turns off l, leaving the code logged but nothing on the dash. Next options i think are either replacing the injector or it getting walnut blasted. Any other advice?
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@pobmk4
 
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