Cylinder head close up
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Getting into this taking picture thing ,.... close up of csl head polished inlets , look good on csl head, not sure if std m3 has this? Exhaust outlet doesn't get the same treatment, Potential problem I've noticed sticking chain tensioner piston. This one is not smooth in operation anybody ever had to replace on ??
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The picture of the inlet valves is worrying, it looks like metal flakes? |
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Seeing as how you are doing extensive work to the engine anyway, i would just go ahead and replace it. If you need it i can see if i can provide you with the partnumber. Let me know.
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Yes CSL had ported/polished inlet side to match the better designed inlet valves. Exhaust side is as far as i am concered the same as normal m3. Quote:
To be honest i am not very surprised that it spun a bearing shell. They should be replaced every 60k miles, if its been driven like its meant to be, in my opinion. |
The inlet valves are the same as regular m3, it's the exhaust valves that are different. Port work is the same as regular S54 too.
Old thread - http://www.cslregister.com/forum/showthread.php?t=12153 Sadly I can't restore the photobucket pics, despite my best efforts :bigcry: |
Yes, seems like i was mistaken. Thanks uncle benz ;)
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My version of a water leak down test while striped, only no 5 hardly leaked number 4 was the worst, pics taken after a 3 minutes. Will lightly lap all the valves in and re try them again
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