Wilsons Sandbox

T-fellows I have the engine gasket kit for my XPAG and with it are small O-ring looking seals, that one might think are valve seals. Do XPAG motors have seals other than the guide to valve clearance? If so, where do these little buggers go? If the guide is the only resistence oil, what is reasonable tolerance on valves guide. Joe Potter Eugene, Oregon USA

JTPAKI@aol.com wrote:

> I have the engine gasket kit for my XPAG and with it are small O-ring > looking > seals, that one might think are valve seals. Do XPAG motors have > seals other > than the guide to valve clearance? If so, where do these little > buggers go? > If the guide is the only resistence oil, what is reasonable tolerance > on > valves guide.

The "O" ring seals go directly under the split cotters, trapped in the groove on the valve stem. Their function is probably to reduce the oil running directly down the valve stem, rather than sealing of the valve guide and stem. MG quote 8mm +/-0.01 mm for valve stems and 8.06/8.08 mm for the guides. If you are fitting bronze guides you could reduce the clearance a tad but a little oil in the fuel will reduce seat erosion in the absence of TEL and hardened seat inserts. Regards Cliff

Message text written by INTERNET:JTPAKI@aol.com

>I have the engine gasket kit for my XPAG and with it are small O-ring

looking seals, that one might think are valve seals. Do XPAG motors have seals other than the guide to valve clearance? If so, where do these little buggers go? If the guide is the only resistence oil, what is reasonable tolerance on valves guide. Joe Potter Eugene, Oregon USA

Joe: They go beneath the keepers on each valve. Skip........................ At 11:17 AM 5/2/01, JTPAKI@aol.com wrote:

>T-fellows > >I have the engine gasket kit for my XPAG and with it are small O-ring looking >seals, that one might think are valve seals. Do XPAG motors have seals other >than the guide to valve clearance? If so, where do these little buggers >go? >If the guide is the only resistence oil, what is reasonable tolerance on >valves guide. > >Joe Potter >Eugene, Oregon USA > >Your use of Yahoo! Groups is subject to the >http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.