How to-
I posted this in a thread to help some people understand what happens as the valves start to wear out. There are a lot of top end ticks in these 4 cyl and 6 cyl engines.
Wanted to share this with all, if you have any insight please share.
________________
remove the valve cover
label each spark plug wire and then take them all off
pull out all spark plugs
use a breaker bar on the front of the crank to turn the engine over (in N)
watch the rocker arms for your first cylinder, identify the intake and exhaust valves for each cylinder by looking at their position compared to the exhaust and intake
stroke 1 as the piston goes down is the intake, at this time the intake valve will open. Stroke 2 is as the piston comes back up on the compresion stroke to compress the fuel. At top dead center, this is the only stroke where both valves will be completely closed. Watch the intake valve open, watch it close, this is your stoke to come to top dead center with the piston.
rock the crank back and forth slightly until you are comfortable that you are at top dead center with maximum clearance on each rocker arm for that cylinder.
use feeler guages on the two valves for that cyl. and adjust the nuts on the rocker arms to barely be able to fit the required thousands of an inch between the valve stem and the rocker arm. (need to look up your clearance for that engine) should each need a little tightening. It is important to get this right, if there is to much clearance they will tap loudly. If there is not enough clearance then the valves will not close all the way and you'll loose compresion. (DONT WANT THAT!)
dont get confused with top dead center of the exaust stroke, they valves actually rock at this point and the intake starts to open as soon as the exhaust is closing all the way. to understand the whole stroke thing... 1 the piston goes down and pulls in fuel. 2. piston goes back up and compreses the fuel. 3. piston is forced back down by fire 4. piston comes back up and exits the exhaust. 4 Stroke = intake, compresion, power and exhaust.
Repeat this process for each rocker arm to valve and she'll be quiet as new! Puts less wear on the valve train as well...
put cover back on, re-install spark plugs and away you go!
If your engine ticks abnormally loud when your done, you adjusted them on the wrong stroke. It MUST be at TDC of the Compresion stroke.
I posted this in a thread to help some people understand what happens as the valves start to wear out. There are a lot of top end ticks in these 4 cyl and 6 cyl engines.
Wanted to share this with all, if you have any insight please share.
________________
remove the valve cover
label each spark plug wire and then take them all off
pull out all spark plugs
use a breaker bar on the front of the crank to turn the engine over (in N)
watch the rocker arms for your first cylinder, identify the intake and exhaust valves for each cylinder by looking at their position compared to the exhaust and intake
stroke 1 as the piston goes down is the intake, at this time the intake valve will open. Stroke 2 is as the piston comes back up on the compresion stroke to compress the fuel. At top dead center, this is the only stroke where both valves will be completely closed. Watch the intake valve open, watch it close, this is your stoke to come to top dead center with the piston.
rock the crank back and forth slightly until you are comfortable that you are at top dead center with maximum clearance on each rocker arm for that cylinder.
use feeler guages on the two valves for that cyl. and adjust the nuts on the rocker arms to barely be able to fit the required thousands of an inch between the valve stem and the rocker arm. (need to look up your clearance for that engine) should each need a little tightening. It is important to get this right, if there is to much clearance they will tap loudly. If there is not enough clearance then the valves will not close all the way and you'll loose compresion. (DONT WANT THAT!)
dont get confused with top dead center of the exaust stroke, they valves actually rock at this point and the intake starts to open as soon as the exhaust is closing all the way. to understand the whole stroke thing... 1 the piston goes down and pulls in fuel. 2. piston goes back up and compreses the fuel. 3. piston is forced back down by fire 4. piston comes back up and exits the exhaust. 4 Stroke = intake, compresion, power and exhaust.
Repeat this process for each rocker arm to valve and she'll be quiet as new! Puts less wear on the valve train as well...
put cover back on, re-install spark plugs and away you go!
If your engine ticks abnormally loud when your done, you adjusted them on the wrong stroke. It MUST be at TDC of the Compresion stroke.
