Hi, can anyone post a link to a recording of a supercharged 2010/2012 engine sounding without any issues? Also, apart from the timing chain, what other factors can bring unsual noises to the engine?
Thanks
Thanks
No need to post a vid, idle it shouldn't make any noise you can hear over the sound of the engine... At wide open throttle it should sound like a bad power steering pump on steroids. If it's chattering at idle, sounding like a bunch of marbles in the supercharger chances are the snout coupler is in need of replacement. Screeching at idle bad bearings, grinding at idle bad bearings and bad gears alignment. You know you'll have bad rotor alignment when it just cannibalizes itself, the pulley on it will seize and possibly cause damage to your engine if any tiny shards get past the intercoolers.Hi, can anyone post a link to a recording of a supercharged 2010/2012 engine sounding without any issues? Also, apart from the timing chain, what other factors can bring unsual noises to the engine?
Thanks
the coupler shouldn't make any noise at shut down fyi... it makes noise when it's lightly loaded at idle. It has 6 holes in it. 3 prongs from the snout fit into one side, 3 prongs from a gear seated in the middle section of the blower slide into the other 3 holes. Over time the bore on the 6 holes opens up allowing the prongs to move around making a marbles in the blower sound. If it makes any noise on shut down, it would be one click when they prongs seat as the pulley decelerates.You should just hear the noisy fuel injectors, which dont sound great on Direct Injection motors. Supercharger coupler is noisy most notably at shut-down (clacking sound like diesel) - so if you hear it clearly then, you know its the coupler. I had my coupler done and timing chain done, was significantly quieter.
Yes, this.. I was referring to a bad coupler, not a good one. Or if you want to be certain to eliminate the coupler noise - remove the blower belt and start /stop the motor quickly, see if the noise goes away.the coupler shouldn't make any noise at shut down fyi... it makes noise when it's lightly loaded at idle. It has 6 holes in it. 3 prongs from the snout fit into one side, 3 prongs from a gear seated in the middle section of the blower slide into the other 3 holes. Over time the bore on the 6 holes opens up allowing the prongs to move around making a marbles in the blower sound. If it makes any noise on shut down, it would be one click when they prongs seat as the pulley decelerates.
Yeah, you can also pull the belt off the blower and just try to turn the blowers pulley back and forth. If there is play and you can feel the pulley turn before you feel the rotors engage in either direction, the coupler is toast. I've never actually seen one catastrophically fail but the issue is when they have play, it puts additional shock on the bearings and seals within the blower causing them to prematurely fail.Yes, this.. I was referring to a bad coupler, not a good one. Or if you want to be certain to eliminate the coupler noise - remove the blower belt and start /stop the motor quickly, see if the noise goes away.
It was definitely NOT just one click noise at shut down. it was quite noisy.
I am almost positive the S/C has to be removed to access all of the snout boltsMy memory is hazy on whether or not you can remove the blowers snout while it's still on the rover but the repair is incredibly easy..
That was nice of you to make that vid! Nice rideI went ahead and took a video of my low mile 2011 Supercharged. This truck has only 28k miles on the odometer and engine is nice and healthy.
This is what the typical idle of the AJ133 5.0L S/C engine should sound like. Only real ticking noise is from the direct injection.
Video here: https://www.youtube.com/watch?v=U5OZemHvesE
I had seen this request on these forums several times, so I figured it was worth the 5min of effort to help the communityThat was nice of you to make that vid! Nice ride![]()
I can't tell based on the audio quality but you can rule the blower out by popping the accessory belt off and starting it for a couple of seconds. Or just pop the belt off just the blower and hand turn it... if the pulley doesn't turn totally smooth and catches/has play the blower needs to be looked at.Hi, I recorded two videos with the sound of the engine. I still have some doubts regarding if there is any issue with the timing chain or the coupler.
https://youtu.be/3Vv5k8Rqw68
https://www.youtube.com/watch?v=3Vv5k8Rqw68&t=2s
Could you please share your views on this? from the inside of the cabin it also seems to noise to me
Thanks very much