hello, i have heard an expert say the dynamo engine is weak around the d/s main bearing area. if anyone has weld strengthened this area, possibly for racing, could you post a photo of what you did? also i need to crind t/s main oil seal bearing down to a undersize. anyone recomend a seal size or stockist for the oversize oil seal? finally, i need a r/h +40 66mm piston - with the valve pockets. a good used one might do but must be hepolite. thanks for looking.
On very good authority the…
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thanks ben, i m enjoying t…
thanks ben, i m enjoying the forum link you kindly supplied. i had a triumph which had strengthened cases, built up with weld and am looking towards adapting the drive side to accept a stator housing and alt cases . then i can use a modern ignition system and strobe accurately.
the forum tuners hint towards placing the crank on veblocks on a surface plate and measure everything with a height guage to avoid misalignment and distorted componants. good suggestions.
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On very good authority the generator cases are stronger in this area than the alternator cases, as they are not machined out so much there. A very good forum thread on the history and tuning of Norton Dominator 500 twins can be found here: http://www.britbike.com/forums/ubbthreads.php?ubb=showflat&Number=346712&page=1
For your seal I would go talk to a supply house that specializes in bearings and seals, they usually can look up oddball stuff by the measurements you supply.