SOHC.co.uk Forums > CB500/550

cylinder head removal

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matthewmosse:
Use a g cramp and a tube of right diameter with sides cut out, a bit slower than a valve compressor tool but worth the saving. Also lots of valve spring compressors on the market are desighned for cars and won't fit round a cb head and do the job so be caeful which models you buy. Wear wise the camshaft bearing in the head tend to be the first thing to give grief (look for scoring), I've had a 100 000 mile cb500 motor appart and the ring end gap was still in speck so I'd not be surprised if the bore and pistons were fine to reuse. Look for carbon deposits on sides of pistons, below the piston rings, if they are fairly clean I tend to trust they are ok, just check the piston ring gap as it's very easy to pop new rings in at this stage. Any futher examinations I personally would want to pass onto someone with a bit more knowledge and a good set of very good measureing kit.

MIKE550/4:
this might help, as for the valve compresor, seen a kit on e bay ,what size adaptor would i need ?

http://cgi.ebay.co.uk/BRAND-NEW-7PCE-VALVE-SPRING-COMPRESSOR-KIT-car-van-bike_W0QQitemZ140303817723QQcmdZViewItemQQptZUK_Measuring_Tools_Levels?hash=item140303817723&_trksid=p3286.c0.m14&_trkparms=72%3A1689%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

matthewmosse:
That tool looks like it will do the job, I cann't recall exactly why the proper tool's I'd tried wouldn't fit onto the head, problems were the depth of the recess of the valves in the head and the width of the cooling fins.

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