- Local time
- 6:09 PM
- Joined
- Dec 4, 2009
- Messages
- 36,367
- Reaction score
- 48,395
- Location
- Pasadena, Texas
This should give you an idea if it's advanced or retarded or straight up. A long time racer sent this to me awhile back and I've never tried it so it someone thinks it's inaccurate, chime in.
HERE'S A LITTLE QUICK CHECK CHECK FOR YOU ALL WHO DON'T KNOW WHERE YOUR CAM IS....... and it's extremely helpful to have adjustable rockers (if you don't you'll never get the engine to smooth out anyway) (1) pick a cylinder (2) adjust both valves the best you can to .012 and .012 on the sweet spot, the best spot you can find then (3) bring the cylinder to TDC firing stroke. (4) measure the existing lash it won't be .012. If the intake is tighter than the exhaust the cam is advanced. If the exhaust is tighter than the intake the cam is retarded. If they are both the same, the cam is straight up.
HERE'S A LITTLE QUICK CHECK CHECK FOR YOU ALL WHO DON'T KNOW WHERE YOUR CAM IS....... and it's extremely helpful to have adjustable rockers (if you don't you'll never get the engine to smooth out anyway) (1) pick a cylinder (2) adjust both valves the best you can to .012 and .012 on the sweet spot, the best spot you can find then (3) bring the cylinder to TDC firing stroke. (4) measure the existing lash it won't be .012. If the intake is tighter than the exhaust the cam is advanced. If the exhaust is tighter than the intake the cam is retarded. If they are both the same, the cam is straight up.
