There should only be a 10% difference between all the cylinders so using the math, the lowest a cylinder should be 112-113. Your lowest cylinder is 20% off, not 10%. I don't think it's to bsd yet, keep an eye on it, if it gets worse it could have a bad valve or ablone head gasket.
I have a 1997 Saturn SL 1.9 with gas in the oil and 30 psi in #4 cylinder the other 3 cylinders are at 180
The compression can be different from one engine to the next depending on mileage and maintenance. What is important is that all cylinders are within 10/15 lbs of each other.
I'm not sure of the exact values; they should be in your Haynes repair manual. However, if you compression test all of the cylinders and find one that is lower you have a compression problem with that cylinder. It is also possible to have 2 that are lower, this would most likely indicate a warp in the head between those two cylinders. Other causes for compression loss are damaged or gunked up valves that do not close all the way or a crack in the head.
optimally at least 100 psi on each cylinder, but the most important thing is that both cylinders are 5% within each other.
It varies from one engine to the next but, what you want to see is that all the cylinders compression readings are within 10% of each other.
Running a compression test is pretty much the same for all internal combustion engines.Remove all sparkplugs, marking where the wires went; you don't want to connect the wrong wires to the plugs when you're finished.Start with cylinder 1, screw in a compression gauge where the sparkplug just came out. Some compression gauges just press in, but I prefer the screw in type.Have an assistant engage the starter as though trying to start the engine. Obviously the engine won't start without plugs.You should hear and/or feel the engine compression on the single cylinder with the gauge in place; make sure that cylinder goes through compression cycle at least 3 times.Read the value on the gauge. The gauge should hold the compression reading, allowing you to record the reading.Write down the compression reading and the cylinder number.CLEAR THE COMPRESSION GAUGE. You can release the compression reading, usually by pressing a button or turning a knob. It's different for different style gauges.Repeat the process for all cylinders.Compare the compression value for all cylinders; they should be within a few percent of each other. Any small variance can be attributed to cylinder or valve wear. Large differences indicate severe problems. If any two adjacent cylinders have zero compression, you probably have a blown head gasket.
No compression on all cylinders would indicate a broken cam belt. i think this motor has hydralic lifter, but for them to cause no compression it would be unlikly. when you say no do you mean none at all or low compression? a broken cam belt could be the cause if all cylinders have no compression. if the cylinders are down it could be bad valve seats (the point of contact between the valve and the head). if it is one or two cylinders it could be cracked head or cracked/broken head gasket. the only other possablilities are broken rings or broken piston. you need to know compression reading of all cylinders in a dry and wet situation. to do this 1:take the compesssion of a cylinder 2:then remove compression guage and squirt two good squirts of engine oil in the cylinder through the plug hole. 3:retake comperssion reading of cylinder. if the compression reading increases you have bad rings, if it doesnt the rings are fine. hope that helped and not confused you Geoff
Do a compression test on all cylinders and compare findings. All cylinders should be within 10% of each other.
It will vary from one engine to the next. What you want to see is that all the cylinders are within 15% of each other.
What's more important is that all the cylinders should be within 10% of each other.
Driver's side head front to rear is 1-3-5 cylinders. The other head front to rear is 2-4-6 cylinders. A stright 6 cylinder engine front to back is 123456 cylinders.
You may have a blown head gasket. If you have a compression tester available, check compression on all four cylinders andcompare the readings. If adjacent cylinders read lower compression than the other two, it is likely the head gasket is blown.
The definitive way to determine if there is a burned valve or blown head gasket is to run a compression test. Mark the spark plug wires; either a piece of tape with the cylinder number or you can buy wire marker labels... your choice. Remove the spark plugs. Using a compression gauge, start at cylinder 1. Some gauges press into the sparkplug hole, some thread in, either way, make certain that the gauge is being used properly, then have an assistant engage the starter as though you are trying to start the engine. Make certain that the piston in question comes to the top of the compression cycle at least 3 times. Write down the pressure that the gauge reports, then proceed to the next cylinder. Perform the test for all 4 cylinders. If any of the cylinders is incapable of producing pressure that is about the same as the other 3, you PROBABLY have a burned valve. If the pressure in 2 adjacent cylinders is low, you probably have a blown head gasket. Either way, if any cylinder has low compression on the compression test, you will not be able to repair the engine without removing the head. If the compression on all 4 cylinders is reasonably good (close to 90 PSI or more) you probably don't have a burned valve. Good luck.
Check your compression on the wet cylinders are they the same or close to the sry cylinders good starting point
I don't think the number 2 cylinder has good compression due to overheating.It is rather the other 5 cylinders that have badcompression due to overheating.Both cylinder heads have to be re-surfaced after checking for any cracks/compression leaks.Re-do the valve seating.New gaskets, valve stem seals, antifreeze etc. and after a certain mileage, a re-tightening of the cylinderhead bolts.Also, fix the original problem, which may be a leak in the cooling system.
All cylinders should be within 10% of each other.
No compression on all cylinders, assuming pistons are moving and valves are intact - would imply bad valve timing, most likely timing chain... Several other issues can cause low compression in misc cylinders but no compression across the board without a catastrophic event such as major overheat or fuel washing cylinders, blown crank, etc - but "no compression" again, first check would be timing chain.
The accord has two models. one has a four cylinder, and the other has a six cylinder.
Did this happen just after an overheat incident? Are the two cylinders adjacent to each other? If so, consider the possibility that you may have a blown head gasket leaking between the two cylinders. To check, first get intake and exhaust valves closed on both cylinders. Then use a cylinder leakdown tester to put air into one cylinder. If it comes out the spark plug hole of the other you have a leak between the two cylinders. If this is the case, remove the cylinder head and examine the head gasket for any sign of damage. If this is a 4 liter inline 6 engine and if the two cylinders in question are #3 & #4 consider the possibility that you may have a cracked cylinder head. Proceed as above, but while the head is off, carefully look for cracks. If the head has a crack it must be replaced.
That depends on which engine it is equipped with. The 2.5 liter has 4 cylinders, and the 3.1 & 3.3 Liter V6 have 6 cylinders. If you see 3 plug wires going to the engine that means it is a 6 cylinder. The other 3 are hidden on the back side of the engine. If you see 4, then you have a 4 cylinder. It also has two door lock cylinders and two real wheel cylinders. One trunk lock cylinder,one master cylinder and ign. cylinder.
It can be any amount of cylinders, there are almost no cars that have stock 1000hp or more and the only one I can think of is the Bugatti Veyron which has 16 cylinders There are so many other factors that go into engine horsepower other than cylinders, Is it turbocharged, supercharged or naturally aspirated? Fuel? What is the compression ratio? You can modify an engine with only 4 cylinders to put out 1000hp if you modify it enough. Top fuel dragsters produce as much as 5000 hp from an eight cylinder engine.
The firing order is 1-2-3-4-5-6, with each numerically-successive cylinder reachingtop dead center (TDC) 120 crankshaft degrees after the previous one. Paired cylinders have pistons at the same relative position, such as both at TDC, but they are 360º out of phase, such as one is in the exhaust stroke and the other is in the compression stroke. Paired cylinders are 1-4, 2-5, and 3-6. Spark plugs are fired simultaneously in paired cylinders, during the compression stroke for one cylinder and during the exhaust stroke for the other cylinder. The spark during the exhaust stroke is wasted because the basically inert exhaust gas cannot combust.
two cylinders on top of each other
That number can vary, what you want to see is the compression reading on all of the cylinders within 10 - 15 lbs of each other.
The firing order for the Saturn in-line 4 cylinder engine is: 1-3-4-2 Connect the plug wires to the coil pack (on the front surface of the engine block) in the following order (left to right) 4-1-3-2. The Saturn has 2 coils, one coil controls cylinders 1 and 4. The other coil controls cylinders 3 and 2.