Each to their own. On race car engines, an ex-colleague used to take a steel rule, dip the very corner in 'Ajax' which was a commercial scouring powder, and drop a little down each intake trumpet. Change the oil and that's it done.
When I rebuilt my Peugeot 205 GTi engine, I fired it up and the rings made a **** of a noise. I switched the engine off and thought about it for a mo. I decided to press on. I took it down the dual carriageway and the noise slowly became quieter. Changed the oil and job done. Ran sweet as a nut for the next 30,000 that I had the car. We never hear our engines fired up for the first time do we.
Last edited by chezqui; 03-27-2018 at 02:34 PM.