Loud ticking with RPMs in 2013 Mazda 3 coming from TC or ...


Loud ticking with RPMs in 2013 Mazda 3 coming from TC or Flywheel area. Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Coming from TC or flywheel area. ...

Loud ticking with RPMs in 2013 Mazda 3 coming from TC or Flywheel area. Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Coming from TC or flywheel area. Mechanic's Assistant: Are you fixing your Mazda 3 yourself? What have you tried so far? Yes myself. Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Flywheel no cracks and bolts tight.

Automotive Expert
Hi my name is \*\*\*\*\* \*\*\*\*\* I'll try to help you with this issue, the website may ask if you want a call, but that is up to you. So do you have the trans. out and can you check the bolts on the crankshaft? also when these do crack it is like near these bolts on the crank.

Hi Kurt, if you want to call I can give you a outline of all work done so far.
Automotive Expert
that does cost extra, and something else to check is the thrust bearing for the crankshaft.

This is what has happened so far:Noise: Coming directly from TC or Flywheel area. I have my head under the car and isolated the sound to this area. Hear the tick for 1 second at startup then goes away. Sound comes back when in gear and at 1500 Rpms and above. Sound goes up and down with Rpms. This sound does not happen at idle or neutral.What I have done: Pulled engine and transmission. Flywheel is not cracked, and bolts are tight.
Automotive Expert
So your thrust bearing on the crank could be worn enough to allow the crank to move back and forth under different loads and conditions and cause it to hit or rub at certain times.

Is there any way to diagnose this? I have the engine and transmission apart.Could the TC be broken?How can I send you a video with the sound?
Automotive Expert
yes it could be the TC, and I'm not sure how to send a sound bite.

I put the car up on stands and had someone put the car in drive, and press the gas at the same time. At 1500 rpms the clicking starts. As soon as gas is let go, there is no noise. I was under the car while doing this, and sound was coming from bellhousing.
Automotive Expert
sounds like the thrust bearing , and for a little while I will be away. sorry

Is there a way to diagnose the thrust bearing? Again, I have motor out of the vehicle, and transmission apart.
Automotive Expert
so you would take a large screw driver or pry bar and pry the crankshaft back and forth and try to see how much end play it has. and I don't think you mentioned which engine you have,

There is about 1/16th room of play.This is a 2.5L engine
Automotive Expert
the end play should only be .009- to .022 inch

It's very minimal. Like the smallest movement.
Automotive Expert
so looking at the inside of the bell housing does it look like anything is hitting, as it should be a mark if it is.

Nothing looks like it's hitting. I just out the torque converter back in and bolted up the transmission. I cranked engine and its all moving freely with no noise.if there is almost no play, does that mean bearings are good? Engine is 24,000k wreck. Tested by dealer and given all clear.Torque converter was seated in all the way. Three clicks. But had to pull the TC back once bolted to engine to get bolts on.
Automotive Expert
so it may not be that. I was just thinking it could be but if it not then it's likely something else.

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