MTFCA Forum

Hi,
Can somebody please describe the timing of the valves for the 280 camshaft from Snyders ?
Thanks
Willi

Same as any timing of a cam, by the marks on the gears.

Thanks, thats a funny answer.
Valve timing is the position, when the valves open and close.

If you are wanting to verify the opening and closings events google Degree cams by centerline. You cam should have a cam card with all the information you need.

Funny answer? more like a funny question, who needs to verify the cam timing when they all correspond to the timing marks on the gears, I suppose you can check it with a degree wheel but what for? the cams are not made to a guess that they need checking let alone you can only move the timing by gear tooth increments now if you said you are trying to work out if you have a 7.5 degree advanced cam grind or gear, then the cam would be marked, or not hard to see if the gear is the 1/2 tooth 7.5 against an old gear. just don't use both.

FWIW, Bill Stipe told me to set valve lash at 0.012" for all valves with his 280 camshaft. Is valve lash what you are really asking?

Exh lobe centerline 109 deg btdc

Int lobe centerline 122 deg atdc

lobe separation 115.5 deg

There's a reason some engines seem to run better than others..................

Valve timing as done in the old days was done to check the position of the piston when the valve opens. The idea was to have them the same so the engine would run smoothly. In those days the valve stems were ground for the clearance and with a worn camshaft the position of the valve opening could vary with wear. The new cams are ground precisely and with good timing gears, good bearings and new adjustable lifters, the valve lash can be measured the same for all valves and it will run smoothly as long as the timing marks on the gears line up.
Norm