you will need some tools and valve clearance specification, i think you know that.here may be you are asking about the position of the crank for adjusting the valves. if it is rocker with adjusting screw you can adjust with that. if you have shims on the valve bucket under the camshaft then you can adjust by changing it to the proper size of shim.
* adjust any valve which is loose, you can check if the valve can be adjusted or not by rotating the crank about 30 degree clockwise and counter clockwise from the existing position and if the valve does not start to open and stays loose then that valve is in good position for adjusting.
* mark the Valves you have adjusted. * rotate the crank one more turn and adjust the other valves. * mark the valves you have adjusted.
* if you have still some valves left rotate and make it loose i think this will help you somewhat.
If it is the 8 valve engine then ensure you adjust them when the engine is cold. inlet- 0.10mm-0.15mm, exhaust 0.25mm - 0.30mm. if it is the 16 valve engine then the valves are hydraulic. DONT KNOW WHO HAS TOLD YOU THAT ABOUT THE 16V BUT THEY ARE NOT HYDRAULIC THEY ARE ADJUSTABLE
Combined mpg actual 1600 rt scenic 8 valve =37.5mpg
inlet 0.10 outlet 0.25
To adjust the valve clearance on a Clio 1.4 8-valve engine, first, ensure the engine is cold and remove the valve cover. Use a feeler gauge to measure the clearance between the rocker arm and the valve stem. If adjustment is needed, loosen the lock nut on the rocker arm and turn the adjustment screw to achieve the specified clearance, then tighten the lock nut. Finally, recheck the clearance to ensure it's within the manufacturer's specifications before reassembling the valve cover.
To adjust the valve clearance for an RF 8 engine, you will need to follow these steps: Start by removing the valve cover to access the valves. Rotate the engine to the top dead center (TDC) position for the cylinder you are working on. Measure the clearance between the valve stem and the rocker arm using a feeler gauge, and adjust as necessary by loosening or tightening the adjusting screw on the rocker arm. Once the correct clearance is achieved, tighten the lock nut to secure the adjustment.
Toyota uses shims to adjust valves. Basically you have to remove the valve, take out the shim measure compare with what it's supposed to be. If it's too short replace with the right height. One shim costs about $8-10 at Toyota dealers. You can get it only from dealers.
To adjust the idle on a Mazda RX-8, first make sure the engine is at operating temperature. Then, locate the idle air control (IAC) valve, which is typically found near the throttle body. You can adjust the idle speed by turning the IAC valve screw or, in some cases, reprogramming the ECU if the idle is significantly off. Always refer to the vehicle's service manual for specific instructions and settings to ensure proper adjustments.
The correct tappet setting for a Minor 1000, is .012", or twelve thousandths of an inch. The best way to check them is one at a time, to the "rule of nine". This is where the valve open, and the opposite one to be checked, add up to nine. eg, front valve is number one, and if this one is down (open), then you check the gap on the rear valve which is number 8. So 1+8=9. Continue with 2+7, 3+6 etc. There will be two valves open at a time, and I would check the two opposites, but if you are unsure, stick to one at a time.
the bigger valve is always the intake valve on any car......you have a 350 so its a v8 so you have 8 intake valves and 8 exhaust valves ..........
it's a 16 valve, 2 cambeltdriven camshafts
simply to get more power I "believe" that 1991 was the first year for the 16v. I have a 1990, and mine is an 8 valve. Hope this helps. -Tony
Yes the idle air control valve is adjustable. usually set to a measurment based off what make and model your vehicle is. for example most chevy's are to be set around 1 1/8 inch. Once set is should adjust itself as needed. If not replace it.