The chain was changed at at 120 000 or around there. Now the idle is smooth as silk, but that worrisome rattle is still there! My engine has done 163k km bit over 100k Miles and sometimes I can hear the chain grind on a cold start. This new Tensioner has more tension, so you will need to push with both hands and at the same time turn it to tighten it. Sorry to vent but I am pretty sure others feel the same way. I also did look at the timing chain, and there are some score marks, but again everyone is saying that this is normal for the N2O engine which im also confused about.
That sorted it for me. In my case there was also a broken bolt which made a whole in the block resulting in the need to change also the block. Remove it slowly so the chain doesn't jump a tooth, as the chain will be slack. Or is it the oil pump near to its life sound? Probably the oil is already in the sump, I did it when I changed the oil because it made more sense to me. Thanks guys for all input.
Weekend '01 540i 6 spd, Oxford Green. Post number 5 in this link is very helpful: I would agree with helix402 in that post. Also should I drain all the oil first and install the tensioner with new spring and washer and put new oil? Check the timing before you button it up to be sure. Cams and lifters aren't too dear, but then labour will be the killer - £600+ at a guess? As you can see, there aren't many tools required for this job at all. October 24, 2011 Followup from the Pelican Staff: If the rattle is worse at start up and in the front of the engine it could the timing chain components. I'm told those get up to 800km per tank 500 miles.
Do I need to change the chain or is tge tensioner enough to solve this issue. In hindsight, we could have just changed the spring and the washer but I ordered all the parts anyway. Time is only 10 minutes if you also take your time for a beer. Check Engine Light is on The check engine light can illuminate for a variety of reasons, one of which could be a failing timing chain. This can initally lead to excess valve train noise and over timeit can damage the other timing components. Spring loses tension and the chain insider the valve cover starts to flap around? December 14, 2010 Followup from the Pelican Staff: Cool, glad to have been a help! If the guides are worn, it will not be possible to remove the slack with a new tensioner.
So i have to change it now with my own money or wait til it broken. A mechanic will need to inspect the code and prescribe the necessary repairs. Will replace the tensioner as soon as i get it and feedback with Pics Guess what. The timing chain method is more common with consumer vehicles and high-performance engines. Try changing the tensioner first. The Decat is a great modification. E46 sind zuverlässig solange man anstehende Arbeiten ernst nimmt und das Geld vorher investiert, statt wenn es zu spät ist.
I was actually referring to the hole on the bottom portion of the piston shaft. Have tried using fuel additives and high grade fuel to no avail. Tq July 8, 2016 Followup from the Pelican Staff: An engine bearing, not pulley or accessory bearing. If it is coming from the front of the engine, it could be worn timing chain components. I have a 1996 328i. Although quite alarming to the point that I had even considered reverting the change , the rattle disappeared after about 5 miles of driving. By the way Car was on 148608km.
February 26, 2015 Followup from the Pelican Staff: If the engine was run low on oil, it is likely internal damage occured. Metal shavings are also commonly seen when there is extensive wear of cylinder head valves, keepers, retainers and other cylinder head hardware. Cover up to 24months and 20-40. Why would simply changing the spring change noise otherwise? However, some noise is almost always present. Is it the hydraulic lifters or the timing chain tensioner? The so called silent chain stretches out and the chain links seize which does not allow smooth running of the chain on the sprocket. June 6, 2010 Followup from the Pelican Staff: I'm not sure about that - usually chain tensioners make more noise when cold, and then quiet down when hot.
Like Hi, the oil pump chain on the sproket is the one making the whining noise. Once you locate the area it will be easier to identify the source. Do the tensioner , It does wear out over time. Are the rail guides plastic? I even came by that night to look myself while it was apart. Rather than rebuild it I bought another 01 with 50K, and sold it to my mechanic cheap.
Then check oil pressure at different engine speeds. Are you saying to fill the chain tensioner assembly with oil before putting it back in or will it fill by itself once the engine starts and the oil flows? So i unplug it for him and the noise is still there. I drive a tremendous number of high-speed miles, often six hours or more at a clip. So we may leverage your effort, I just added this as an instant classic! This can initally lead to excess valve train noise and over timeit can damage the other timing components. When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Do you think I can go dealer service bay and ask for a borescope inspection through the input camshaft sensor opeing? I read the lawsuits and it implies they did but offers no proof.
Happy to have a source to save money compared to the astronomical dealer prices. I'm not sure why that was happening, but since I have reinstalled the tensioner and belts, the car is purring. The automatic rev have dropped bellow 0. The rattle increases in sound as you accelerate. February 24, 2016 Reviewer: Allan R. There are many here with far more knowledge than me. But that persistent rattle probably means either the chain or chain rail are worn and should eventually be replaced anyway right?.