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timing chain timing might not be quite right. or wrong injectors fitted, if you did not have the sound before it would be what you have changed, it could even be the cover is not on properly on the cover. check them.
If you have a timeing chain you have timeing gears witch have marks on them .These marks need to line up even if you have to remove the chain or the gear don't turn the crank or the cam the gears have key ways that olny let them slide in the shafts in 1 spot the chain will go on in any pisition .
22R 4 cyl.Get # 1 piston to TDC(stick the harmonic balancer back on temporary)setting the mark to O on the timing tab,pull the balancer back off and slip the chain on the crank gear after finding the single dot on the chain.Set the mark on the cam gear at very top and put the chain mark on that mark on the cam gear.Stick the cam gear back on the cam and bolt it back on.Your set now.
its a long process for the novice. I suggest getting a repair manual at your local autoparts store to help in your troubles. The process includes finding the timing marks, partial disassembly of engine to access timing belt/chain. To sum up the process, you disconnect your battery, remove timing chain cover, line up timing mards on camshaft/crankshaft which could be dots, marks or grooves, replacing the belt/chain, and reassembling engine. The repair manual will give step by step instructions as well as pictures. To post all that here would take more than 10,000 charecters of text, which fixya limits us to 10,000 charecters. Very long detailed list of procedures for sure!
The noise your hearing is comming from an aluminum timeing chain guide on the drivers side of the timeing chain. My truck had the same problem. The noise first started when the engine was started and then within seconds went away. I drove it for about a year not knowing what the noise was comming from. A few weeks ago the noise got very loud and the truck stopped starting eventually. A few hours ago I pulled the front of the motor off to replace the timeing chain and my guid was broken right off and laying at the bottom of my oil pan. You can remove the two allen head bolts that hold this guide in place and run the vehicle without the guide. Problem solved and no more noise.
I do not think that is possible, you must remove the cover to see and align the marks. I just replaced timing chain on a 99 SL1 I sold to a friend, and it was off one tooth from the factory. That assumes that no one ever changed it before, has 175,000 miles.
well the plastic piece are from the timing chain guides are either broken or ripped off,and the metal rattling was probably the timing chain,,i think the timing chain jmped or broke and broke the guides,if thats the car you most likely bent the valves in the head,,,i would remove the cam cover and the timing chain cover and see what you got,you may need a engine
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