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Loking for illustration off chana star valve timing marks urgent and does if bent valves if putted valve timing incorrectly

Redone engine and want valve timing marks and does it bend valves if valve timing was puted in incorrectly and I tried to start it as it got a knocking noise now

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  • Cars & Trucks Master
  • 881 Answers

Hi there
Well if you done the motor and you havent timed it correctly then you will get a knocking noise and dependens on the motor then yes it could bend the push rods or tight tappets or out of timing the valves can bend,hole in pistons bent rockergear etc.
But depends on the motor if you time it with number 1 piston is TDC number 1 and last valves rocking [depending on how many cylinders you have 4 /6/ etc and set distributor firing No 1

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

ghost4548
  • 776 Answers

SOURCE: timing slipped will it bend intake, exhaust or both sets of valve

First of all, you'll want to perform what's called a 'LEAK-DOWN' test. The assumption you make (regarding Intake versus exhaust) is irrevelant. Interferrence is BOTH intake and exhaust valve clearances. A leak down or "cylinder leakage" test is similar to a compression test in that it tells you how well your engine's cylinders are sealing. But instead of measuring pressure, it measures pressure loss.
A leak down test requires the removal of all the spark plugs. The crankshaft is then turned so that each piston is at top dead center (both valves closed) when each cylinder is tested. Some people start with cylinder number one and follow the engine's firing order.
A threaded coupling attached to a leakage gauge is screwed into a spark plug hole. Compressed air (80 to 90 psi) is then fed into the cylinder. You don't have to use that much pressure... you can use 30 psi... percentages are the same.
An engine in great condition should generally show only 5 to 10% leakage. An engine that's still in pretty good condition may show up to 20% leakage. But more than 30% leakage indicates trouble.
The neat thing about a leakage test (as opposed to a compression test) is that it's faster and easier to figure out where the pressure is going. If you hear air coming out of the tailpipe, it indicates a leaky exhaust valve. Air coming out of the throttle body or carburetor would point to a leaky intake valve. Air coming out of the breather vent or PCV valve fitting would tell you the rings and/or cylinders are worn.
A leakage test can also be used in conjunction with a compression test to diagnose other kinds of problems.
A cylinder that has poor compression, but minimal leakage, usually has a valvetrain problem such as a worn cam lobe, broken valve spring, collapsed lifter, bent push rod, etc.
If all the cylinders have low compression, but show minimal leakage, the most likely cause is incorrect valve timing. The timing belt or chain may be off a notch or two.
If compression is good and leakage is minimal, but a cylinder is misfiring or shows up weak in a power balance test, it usually indicates a fuel delivery (bad injector) or ignition problem (fouled spark plug or bad plug wire). These are not ABSOLUTE conclusions -- each assumption must be VERIFIED before concluding anything. You mentioned "the lifters seem to be collapsed."... Did you VERIFY this? Since you KNOW the engine is OUT - OF - TIME because you KNOW the timing belt has SLIPPED, then you know you must PUT IT BACK IN TIME... right?...before you can continue diagnosis.... right? Otherwise, what are you MEASURING?

Posted on Jun 25, 2009

  • 1201 Answers

SOURCE: pontiac sunfire valve noise

If it's a ticking noise that speeds up with the speed of the engine, it's a worn valve lifter.
You can try tightening it down by taking the valve cover off and tightening the bolt on the rocker arm, but don't tighten it too much, you will end up with other problems.

Posted on Jul 11, 2009

motor1258
  • 6674 Answers

SOURCE: 1994 1.9 the timing belt broke.did it bend the valves.

For what it's worth, my info tells me it's a non-interference engine, so your o.k. but I will double check that & get back to you.

Posted on Jul 13, 2009

theroadis
  • 81 Answers

SOURCE: Engine has knocking noise. Oil is good. Started

Engine knock Huh? In order to qualify the term "Knock", Let me get you to perform some simple task/observation. Typically, if you hear a noise on top of your motor that can be described as a light knock, usually going tap, tap, tap, tapping along at double the tempo, of your motor spinning, Your oil pump may be having trouble getting oil to the top where the valve's and rocker arms are. If you hear a "Knock" by bending over or kneeling beside one of your "front wheel well's"and stick your head up to the well, providing a vantage point to "hear" whats going on at the lower part of the engine. A knock from here will/can indicate a potentially overheated, under lubricated, rod or crank bearing that could seize the motor. This (theretical) crank bearing would be sounding off at half the tempo of the rocker arms above., with a deep, dark klunk that would defintly present itself as the sort of noise that damages metal parts. Now, that being said.....common sense goes a long way, people....1.) Most people are aware of the maintenance that has been performed on a particular engine, the quality and quantity of that maint. and when the last time it was ran out of oil or water. For those who fall into the " lack of maintenence" catagory, you probably already know why your engine or driveline sound as it does. If you happen to take particulary good care of your car, there is a good chance that whatever noise or "happening" might be going on, it'll be much easier to remedy. There are always exceptions to every rule. Remember, its not what will happen, it's what can happen. Take care of your car, and it will take care of you. Theroad

Posted on Jul 17, 2009

  • 127 Answers

SOURCE: RENAULT CLIO 8 VALVE TIMING BELT SNAPPED WHERE DO

hallo
first let me know year, engine code (or at least typ of engine 1.2, 1.4...). and I will send you picture for timing belt.
and it will (did) bend valves, so you`ll have to remove cilinder head *** well.

Marko

Posted on Nov 21, 2009

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How do I set the timing on a chana maxi star1.5l 2008, just chnged the timing belt coz it snaped and how will I know if the valves are bend


Assuming you have the cam and crank gears correctly timed with the new belt, it is easy to ascertain if the valves are bent. Simply perform a compression check of all cylinders. If the valves are bent you will have low and uneven compression on the cylinders, and chances are the vehicle will crank but not start. If the engine is an interference engine (I am in the USA and don't have access to your vehicle specs), and the belt broke while running, it is an almost certainty that the valves (and maybe even the pistons) are damaged.

Jul 18, 2016 | Cars & Trucks

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Howm I Put in time 04 honda civic hybrid 1.3L 5 speed?


Did the old belt break? If so, check to see if the valves are bent. If this isn't the issue, 1 tooth off will keep it from starting, the cam marks have to be aligned with the alignment marks on the head.

Jan 28, 2015 | 2004 Honda Civic

1 Answer

If the piston is hitting the valves would that be bent push rods


if your trying to get timing marks to line back up and the crankshaft stops turning, reverse direction of the crankshaft a little and then turn the camshaft a quarter turn.Repeat this process until timing marks are lined back up. not sure if this engine is an interference engine (valve bender) or not. Just dont force it past the stop or you could bend a valve for sure. after installing the timing belt, rotate the crankshaft two turns and recheck the timing marks on cam and crank. hope this helps, good luck.

Jul 14, 2012 | Cars & Trucks

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How do u adjust the timing i must have moved the pullies when i was putting on the timing belt after i changed the water pump now its not runnin smooth its off how do i put it back in time


There are marks that you have to line up. The folowing pictures are for DEMOSTRATION PURPOSE ONLY- YOUR MARKS MIGHT BE DIFFERENT. Once all the marks are lined up then you can install the belt, set the tension and rotate the engine two full turns to make sure all the marks line up.

chuckster57_31.gif
chuckster57_32.gif

Apr 18, 2011 | Kia Spectra Cars & Trucks

1 Answer

REPLACED THE 99 ISUZU3.2 TIMING BELT...FOLLOWED THE PROCEDURES IN THE HAYNES MANUAL,MARKS ARE LINED UP CORRECTLY,ENGINE STILL POPPING BACK THROUGH THE AIR INTAKE AND HAS NO POWER...IS THERE A TIMING...


There is a Technical Service Bulletin (TSB) that may apply to your situation. It is bulletin number IB00-S005.

This TSB addresses re=timing of the camshaft sub-gear in the event the timing belt was broken or the cams were rotated with the timing belt removed.

The only other thing I can suggest is to check for bent or broken valves. Popping back through the intake can only be caused by three things.
1. Camshaft timing incorrect
2. Broken or very weak valve spring.
3. Burnt or bent intake valve

Apr 16, 2011 | 2001 Isuzu Rodeo

2 Answers

Replaced the timing belt on a 1990 VW Golf and now it won't start but it will turn over


Most likely the timing is way off. The engine will start when it is in time and when it is 180 degrees out of time. The timing marks on the cam and the crank will line up correctly once when it is #1 TDC and once when it is 180 degrees out of time. The problem happens when you have the Crank at #1 TDC as it should be and the cam is set incorrectly in most cases. If both valves on the head for the #1 are not closed with the intake open and the exhaust closed for the next cylinder in the firing order your cam is not set correctly even though the timing mark appears to be correct. If the previous timing belt broke while the engine was running odds are every valve will need to be replaced because they are bent. VW did not use a no contact engine in this year model which would have locked the valves in the closed position if the belt broke. If this in fact the case you can verify this by doing a compression check on the cylinders. If you have 0 compression on any cylinders you have bent valves. You can also attach an air compressor to a compression check hose and apply air pressure to each cylinder, if you don't get pressure in the cylinder the valves are either bent or not closing properly.

Feb 26, 2011 | 1990 Volkswagen Golf

1 Answer

Timing belt broke on 2005 Kia Optiima. Is the engine wrecked? worth it to replace engine?


that is an interference engine, so if it was running when it broke, chances are very good that the valves are bent, at least-in worst case situations, pistons can be damaged too, but I would have the head removed and have the valves redone-while off, the top of the engine can be checked out. Timing bests are supposed to be replaced every 60,000 miles.

Feb 09, 2011 | 2005 Kia Optima

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