June 25, 201410 yr comment_450403 Yes, the valve clearance is measured between the cam and rocker.The number one cylinder is at the front of the car. The rest are in order going toward the back.I prefer to measure the valve clearance one cylinder at a time following the firing order (153624).Set the base timing to the '73 setting with the vacuum hose disconnected and plugged, and the idle at the specified RPM. Link to comment https://www.classiczcars.com/forums/topic/49499-1973-datsun-240z-s30-manual-comparison-trouble/?&page=2#findComment-450403 Share on other sites More sharing options...
June 25, 201410 yr comment_450405 The air galley, the metal tube running horizontally near the top of the photo, looks rusted out. If it's not leaking exhaust fumes yet, it probably will soon unless it's not as bad as it looks. A new one may be available if you want to keep it stock. Many have removed them and welded or plugged the holes in the exhaust manifold. Link to comment https://www.classiczcars.com/forums/topic/49499-1973-datsun-240z-s30-manual-comparison-trouble/?&page=2#findComment-450405 Share on other sites More sharing options...
June 25, 201410 yr Author comment_450461 The air galley, the metal tube running horizontally near the top of the photo, looks rusted out. If it's not leaking exhaust fumes yet, it probably will soon unless it's not as bad as it looks. A new one may be available if you want to keep it stock. Many have removed them and welded or plugged the holes in the exhaust manifold.Thanks a lot! ill keep it in mind. Link to comment https://www.classiczcars.com/forums/topic/49499-1973-datsun-240z-s30-manual-comparison-trouble/?&page=2#findComment-450461 Share on other sites More sharing options...
June 25, 201410 yr Author comment_450462 Yes, the valve clearance is measured between the cam and rocker.The number one cylinder is at the front of the car. The rest are in order going toward the back.I prefer to measure the valve clearance one cylinder at a time following the firing order (153624).Set the base timing to the '73 setting with the vacuum hose disconnected and plugged, and the idle at the specified RPM.Thank you very much, I was looking for that answer. Link to comment https://www.classiczcars.com/forums/topic/49499-1973-datsun-240z-s30-manual-comparison-trouble/?&page=2#findComment-450462 Share on other sites More sharing options...
Create an account or sign in to comment