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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.

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โˆ™ 2015-07-15 18:37:44
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Q: How can you fix the number one cylinder that has no compression?
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Each cylinder needs fuel, compression and spark. You are missing one of those.


How do you fix a cylinder with low compression on an outboard?

This all depends on why it has low compression. If the rings are worn out, the motor should be rebuilt. If one of the valves is bad, re grinding it or replacing them is the fix. Perform a cylinder leakage test to confirm it. You will probably need to take it to a shop for this, but unfortunately, there usually are no quick fixes for low compression.


What is the 350 Chevy number one cylinder and what is the number one on distributor cap?

Number one cylinder is located driver's side front of engine. With the # 1 piston at TDC on the compression stroke, the rotor will be pointing at #1 plug on cap.Number one cylinder is located driver's side front of engine. With the # 1 piston at TDC on the compression stroke, the rotor will be pointing at #1 plug on cap.


What if your 05 corsa has had new timing belt new cylinder and valves but still no compression in number one cylinder?

Check the Piston Ring.


What causes a number 1 cylinder to have 50 psi and the others 150 psi on a 92 geo prizm 1.6l?

Remove number one spark plug and squirt some motor oil into the cylinder. Now do another compression test. If the compression goes up considerably in number one cylinder you probably have bad/worn or cracked piston rings. If the compression doesn't change much you probably have burned or bent valves.


What can cause low compression on one cylinder only?

Most of the times when you have low compression on one cylinder it's an indication that the head gasket is blown. If more than one cylinder has low compression and is hard to start the you most deffinatly have a blown head gasket


Where is top dead center on a 3.8 V6 ford windstar?

That would be the top of the compression stroke on the number one cylinder.


What are signs of broken ring in v8 engine?

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What can cause a compression leak on number one cyl it is blowing the insulation up on the hood when driving?

If you are getting insulation blown upward, you most likely have a 4 cylinder engine which has a loose spark plug in the number one cylinder.


Where is no 1 on the distributor cap of a 1984 Chevy 350 v8?

there is no hard fast rule here. but typically with the cap off and number one cylinder at TDC on compression stroke. the rotor will point at number one cylinder on the engine.


What to do 02 Nissan Frontier 4-cylinder computer says number one cylinder missing it is noticeable at 1800 to 2000 rpm Changed plugs wires cap rotor adjusted valves and compression is 200 l?

check the compression


What is TDC for a 1991 Z28 Camaro TPI 305?

The TDC is when the number one cylinder is at the top or top dead center of the compression.


Low compression in number one cylinder in a 1.8 dual overhead cam interference engine?

Low compression in one cylinder can mean several things. The valves or piston rings may need to be replaced. There may be a crack on the engine, or the head gasket may have blown. The engine should be diagnosed properly to see what exactly is the cause of the low compression.


What is top dead center on a 1992 Buick road master?

It is when the number one cylinder has reached top dead center on the compression stroke.


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.


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.


What causes no compression on one cylinder?

Your car is probably just effed up!


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A popping sound (when running if it will run), backfiring, and low compression on one cylinder when testing with a compression guage.


How do you put piston on compression stroke?

Remove coil wire from distributor cap and ground the wire. Remove the spark plug from number one cylinder. Stick your finger in the spark plug hole. Have an assistant jog the engine over with the key. When you feel and hear compression coming out from the number one cylinder (it will be obvious) tell your assistant to stop. At this point you will continue to move the crankshaft clockwise by hand until the timing marks for TDC are lined up. You now have the TDC firing point for number one cylinder.


When the number one cylinder is on its compression stroke is the intake valve open?

The piston is on the up stroke to compress so both valves are closed


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Number one is the cylinder closest to the radiator.Number one is the cylinder closest to the radiator.


Where is number one on a distributor?

It could be any one of the contacts. When the distributor was put in, depending on what type of motor it is, number one could be anywhere. You will need to bring number one cylinder to top dead center on the compression stroke and see where the rotor is pointing. That will be number one and set the rest of the plugs from that.


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Number one cylinder is the cylinder on the far right (passenger side in US).


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


Where is cylinder one on a jeep 4.2 6 cylinder?

Number one is the cylinder closest to the radiator.