Just got this engine put in my car...engine was rebuilt 8000miles ago, with BC dual valve springs and retainers (plus bottom end - sleeves, bearings, etc)... I understand that aftermarket valve springs make the ending louder, but i donno if this is normal. Also, ticking sounds like its just in one cylinder...


Noise is very faint for the first 20 seconds after startup, but gets really loud after about 1 minute of idle... after its fully warmed up its SUPER loud... like a goddam tractor engine.... it sounds like the ticking is happening in only one of the cylinders.

any ideas on what is wrong?

Here are a couple of vids:

https://www.youtube.com/watch?v=QZIk...ature=youtu.be


https://www.youtube.com/watch?v=RZJH...ature=youtu.be

 

Sounds like piston slap or worn rod bearing. If you pull the coil lead to the cylinder making the noise --- does the noise become quieter? Or is it the same loudness?

 

hmm ok, i though piston slap got better as the car warmed up, no? The ending has all new bearings on the bottom end but I suppose its possible its dead...

I dont have any tools, but I have an appointment with my mechanic to do a valve adjustment next week and he can check for that.

 

Yeah that sounds like rod knock. Did they do the bearings properly when they replaced them?

 

It was a certified engine repair shop, so I'm sure they did. They don't specialize in performance engines, but I would assume they knew how to do it correctly.

 

Hopefully you can get them to address this problem. If they certified it they need to fix this.

 

That is an awful assumption to make, many many engines have been destroyed by reputable shops and Honda dealerships!! Did you have the bearings done to fix worn bearings?

 

That is an awful assumption to make, many many engines have been destroyed by reputable shops and Honda dealerships!! Did you have the bearings done to fix worn bearings?
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I looked at the recipt, looks like one bearing was replaced, along with the rod and sleeve from the last issue....

 

Any more detail on the last issue? If the rod was damaged and cylinder needed sleeved my guess is the crank was beyond repair and should have been replaced, which is why your bearing failed. Or if it was repairable doing it right so that the bearing does not just fail again is extremely difficult and takes a very special touch. In any case my guess is on that bearing

 

I suppose that the crank could be machined and replaced with oversized main and/or rod bearings --- if needed. It does sound like the engine may need to be pulled. Inspected and parts measured for tolerance.


Sorry about that.