Pontiac 10034162 Valve, Exhaust (Std)

This is especially so because the job involves the valves, valve seats, and valve guides; and because the tools and equipment used need specialized attention. An individual who is at home can uninstall remove and dismantle each head, initiate cleaning and assessment, reassemble and transport the head(s) to a dealer service department or an automotive machine shop for actual valve working. The service department or machine shop will dismantle the valves and springs with possibility of reconditioning or replacing the valves and valve seats, recondition the valve guides, check and replace the valve springs, spring retainers and keepers if necessary, replace the valve seals with new ones, put the valves and spring back together so that the installed valve spring height is as required. also the cylinder head gasket surface to be refinished in case it is warped. As soon as the valve job is done the head becomes as good as new; but before the head is put back on, it must be cleaned again to remove any metal chips as well as abrasive grit work may have left while doing the valve service or the resurfacing of the head as the case may be, using compressed air if at all available to blow out all oil holes and passages.