Check the old Valve
Guides very carefully before electing to reuse them - any wear or scoring particularly on the inner operating surface will result in a loss of performance and a smoking engine as oil seeps between the Valve
stem and the Valve Guide
. This will be evident when starting from cold.
We would recommend renewing these as a matter of course to help achieve the best possible results.
Do not forget to order all the gaskets you will require when reassembling the engine. Try this pro-workshop gasket seal: 08C70K0234M for a more professional result.