These bushes are machined from blanks to order, so please allow a 1–4-day delay for despatch.
BSA A7/A10 1950 TO 1963 timing side main bush, solid phosphor bronze, sized to -30 undersize, made in UK with quality phosphor bronze material. BSA Part number 67.0790-030
After fitting, main bush must be honed or bored to correct clearance to crankshaft, as any bush fitted into a casing will close up; this is standard engineering practice. Bush is machined so there will be minimal honing out required. If you do not have the necessary equipment to do this at home, please entrust this to a reputable engineering company.
Note SRM Engineering have full machining and workshop services available, just visit our website for details on our engineering services.
High quality precision made item, can be used with SRM oil pump or original BSA oil pump.
Postage saving! if you want to buy more than one item, to
save on the postage, please put all the items you want in your shopping basket,
do not pay for them, then select the option “ Request total from seller” I will
then work out a combined shipping cost and send you a payment request for a
combined total, that will save you money.