SOHC.co.uk Forums > Anorak's Corner

Zinc content in oil

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Nurse Julie:
All very interesting stuff. Yes, a full heat cycle is essential, preferably on a nice cool day with an air cooled engine. What you have read about about running in with not too much or too little load and revved reasonably hard is the way Graham (Trigger) advises me to run in all my engines on the old Honda fours but I have to do nearer 100 miles if possible, not just 20 miles  :'( :'(
I think as long as the engine isn't cold and doesn't have it's nuts thrashed on the maiden voyage, I think all will be well. I also feel the most important part of the whole process is the oil and filter change at 500 miles and checking and cleaning the sump and the oil screen to remove any small particles of metal debris from the wearing in of new components fitted when the engine was rebuilt.
Also, as I am a totally compliant person (shut up at the back of the room  ;D) I always do exactly what Trig says, what with him being a professional specialist Honda SOHC/4 engine builder / refurbisher, I wouldn't dare do anything other than what he advised.....I could not handle the resulting flack if I messed it up 😀😀😀

masonmart:
I'm sure I would too Julie, I know my limitations and respect people like trig who are genuinely good at what they do. I'm a qualified engineer but I know I'm not good at mechanics as I have a tendency to rush. I have tended to get any difficult work done by a very unassuming friend who built a 3 cylinder, 375 cc, water cooled Ariel Arrow from 2 x 250 cc air cookled twins.

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