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What should be done after you line the timing marks up and how would you know if the number 1 piston is on its compression stroke or exhaust stroke PS Would there be looseness in the rockers?
Prophetda1
IF this is a Chevy, which timing marks do you mean?
IF you are talking about the cam and crank timing chain marks, and you lined them up 'together' (as close as possible to each other) then you are 180 degrees out in timing.
If you mean the mark on the balancer and its timing indicator then you cannot know without watching the valves operate. To do this:
- Expose the valve rockers for #1 piston,
- Identify the INTAKE valve (it should be the 2nd rocker arm on a V8)
- turn the motor by hand with the key OFF until the intake valve opens and then starts to close
- Once it is closed line up the timing mark and ensure the distributor is pointed to #1
- operation complete
NOTE: the rocker arms on a hydraulic lifter motor should not be 'loose' - if you can rock them from side to side or up and down then you are out of adjustment or the valve stem is worn (mushroomed). If you have solid-lifters, then you should not have needed to ask this question as they require an expertise well beyond simple timing issues.
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∙ 13y ago
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What valve will be open when the number one cylinder is at top dead center?
Presumably we are talking 4 stroke? If so, none or the exhaust - it will be at the top of the compression or the exhaust stroke
Is timing set on exhaust or intake stroke?
Neither, on a 4 cycle engine the timing is set at the end of the compression stroke of the number 1 cylinder.
If the timing mark is at tdc will the number one cylinder always be on the compression stroke in a 79 Chevy 350?
No. When the timing mark is at tdc, #'s 1 & 6 are both up. One is up for compression, the other is up for exhaust.
Which valves do you adjust at number 1 top dead center?
1 exhaust and intake. Each pair of valves should be adjusted when the cylinder is at the TDC of it's compression stroke.With #1 at TDC you can adjust 1,2,5,7 intake and 1,3,4,8 exhaust.
How do you find TDC on a 351 Cleveland After the distributor has been removed and was not marked properly?
Take off the passenger side valve cover. Tap the engine over until the rotor is pointing to the number one distributor wire (on the back side of the distributor slightly to the drivers side). If both valve rockers are loose on the number one cylinder (front passenger side) it is TDC on the compression stroke (also the timing mark on the fly wheel pully should be on top and visible). If both valve lifters are not loose (ie. one is down) the piston is on the exhaust stroke and not TDC compression stroke (the timing mark on the flywheel pully will be on the bottom of the pully, 180 degrees off). You must have the rotor pointing to number one and be at the top of the compression stroke to put the distributor in place.
Where should the lobes of the intake and exhaust cams be on number 1 cyl at tdc on 98 Mazda 626?
At TDC of the compression stroke for cyl #1, the cam lobes will be in a position such that they are putting no pressure on the valves, and valves are closed. At TDC of the exhaust stroke for cyl #1, the lobes will be in a position such that intake and exhaust valves may be open. Exhaust will be closing, and intake will be opening. There are two revolutions for the crank for one of the cam. TDC usually refers to TDC of the compression stroke, when valves are closed. This is when combustion/spark occurs, and is when the valves are adjusted on most engines.
How do you find top dead center on a ford 5.0 liter engine?
The timing marks are on the vibration damper (front pulley) and a pointer on the front cover.If it is pointing to TDC (0 degrees) on the damper you are at TDC compression stroke or exhaust stroke.If your distributor is still installed and the rotor is pointing to the number plug wire on cap you are at TDC compression stroke.If your distributor is not installed remove number 1 spark plug (front cylinder on passenger side)rotate crankshaft with a socket clockwise,hold your finger over spark plug hole when you are reaching TDC #1you will feel the compression.If there is no compression you are on the exhaust stroke.Rotate crankshaft 360 degrees to reach compression stroke.
What causes your 350 Chevy to not have compression on number piston?
Type your answer here... Burnt intake or exhaust valve, hole in piston, broken piston rings, bad head gasket, valve spring broken.
You put a 1975 350 in your 1986 half ton and you can not get it to start only fire pops out of the carb what do you do next?
Sounds like it is out of time, check the mark on the crank and number one cylinder and distributor. their is a compression stroke and exhaust stroke so be sure you are one the compression when checking timing. Sounds like it is out of time, check the mark on the crank and number one cylinder and distributor. their is a compression stroke and exhaust stroke so be sure you are one the compression when checking timing. This condition defines a intake valve is open when the spark plug fires. Look to see if the plug wires is properly connected in the right firing order. If the engine has been disassembled the vale timing could not be set proper. Ignition timing may not be set to the right position. Timing mark at TDC. Cylinder number 1 on compression stroke.Drop distributor in with rotor facing cylinder number 1 on distributor cap.
Why does the number one intake valve start to open on your 1997 dodge ram 3.9L engine with the timing gears marks are set right?
The marks on the timing chain gears are not TDC compression. They are TDC exhaust.
What is nether compression?
Nether compression is a type of compression in which dynamic ether is pushed toward a great number of vorticles. Nether compression was first identified in 1887.
How can you fix the number one cylinder that has no compression?
Many things-Burnt or Broken Intake or Exhaust Valves.Broken Compression Ring,Bent Push Rod,Pumped UP Hydralic Lifter,Hole in Piston or Block,,OR EVEN a small Piece of CARBON that has come loose from the Compression chamber & has gotten STUCK UNDER one of the VALVES.or a broke Valve Spring.or keepers fell off.Broken conecting Rod.
