Engine decoke & cambelt

[vw bora]

Going to change cambelt on my 2.0ltr 8v bora car done 160,000 miles so thought i would do a decoke cos i got a slight miss on 1 cylinder done plugs leads and coil so last thing to do is valves cnt think of what else it could be. Any advice on changing belt and removing head would be appreciated, also is it worth fitting iridium plugs

[Crasher]

Have you done a code read? What is your cars engine type code?

[vw bora]

havent done fault code engine code is apk

[Crasher]

So rather than do a fault code read you were going to pull the head off….

[vw bora]

Just thinking after 160,000 it could do with decoke cos i get a puff of smoke now and then thought it could be valve seals

[Crasher]

It would probably need guides as well but just the valve oil seals can be done without removing the head if you have access to a compressed air supply and the special tools.