Ticking/rattling after engine install, now won't turn over?
 

Had a new engine installed last week, never noticed anything for the first 100 or so miles the first day (trip to Orlando). On the way back something like 220 miles after the install I started hearing a tapping/rattling during acceleration, ONLY DURING ACCELERATION, as soon as I let off the gas it stopped. When the car was in park and idling it would also tick if you really gassed it.

On a couple startups there was a single single knock, but everything would continue on just fine(save for the ticking/rattling).
For the next 600(?) Miles the tapping continued, didn't take the car above 2500 RPM. Mpg was fine, I was averaging around 35 before everything went sideways.

Sunday evening I parked on a sloped driveway and as i pulled in the rattling was pretty intense for the first time while in park and wasn't giving it gas. I was at my destination so I didn't really think anything of it unless there was an issue when I was leaving. When I left there was no rattle or tapping at all anymore. Started the car about ten(?) Separate times between then and this evening, put on another 200 or so miles and still no rattles.

Leaving the store today I made a u turn and the rattles started almost immediately(within 30ft?) this time doing it even when not under load, about two minutes or so later they got pretty fierce, it sounded like something broke in the engine bay. Pulled over, threw it in park and you could still hear some type of rattling, recorded a video of it (So when I figure out how to add I'll post it). One of the pulleys is losing its mind(assuming its the tensioner) not sure if that was the ticking and tapping the whole time.

During the one startup I attempted after all of this the car gives off a sound like a tire stuck in gravel/grinding(as if the starter isn't catching)?

Sorry it's so long, wanted to add as much detail as possible.

Ticking video @ idle, when rpms are revved(taken a week ago)
https://youtu.be/I2Mopybd9uA

Louder rattle occurring even at idle(taken two days ago)
https://youtu.be/BMorePYHrvM

Grinding/whirring on attempted start(Taken after the loud rattle started and I pulled over)
https://youtu.be/FmIdrsUA9dk

hmmm......my computer isn't hearing any sounds from your video.

Is the engine under warranty?

I'd suggest you take it back to whoever installed the engine and ask them to fix it.

It could be a lot of things. If the tension pulley is acting up, I'd suggest you start there.

I hope you get it sorted out.


humfrz

you went over 1,000 miles with a noise on a newly installed motor?!?

take it back to whoever installed it, but don't be shocked if they say the damage was caused by running it for so long with the issue and they won't cover it.

Thanks for pointing that out, not sure why the video's don't have sound, i'll try and figure that out. It's at the shop now.

https://www.ft86club.com/forums/show...15#post3204815
Her noise is really similar to my own, she had a rattling due to something not being set correctly and her flexplate(flywheel?) being damaged?
https://www.lynnmichellephoto.com/Vi...z8/i-QKsGs3n/A
However now mine is at the point where it just won't turn over. Would damage to the flexplate keep the car from starting and give off a grinding sound on start? It sounds super similar to when my much older camaro's starter was going and it would sound like it was just spinning and whirring.

I'm not saying I'm not stupid :bonk:, but I took it back as soon as the noise started and we couldn't determine the cause, it not happening for the first 200 or so miles made me feel it might've been something missed during installation. It going away ENTIRELY made me feel even better since...it was gone.
The noise happened for probably 250-750, and The driving was basically 100 miles each way on a highway, never under a heavy load and performance was fine. Didn't really seem to be a cause to worry.
Whole situation trying to get this resolved after the valve spring has been a nightmare for 2 months so i was pretty ready to believe everything was good(that and it was a span of 4 days).

Well, keep us posted.


humfrz

Heat shield someplace.

Videos with sound

Ticking video @ idle, when rpms are revved(taken a week ago)
https://youtu.be/I2Mopybd9uA

Louder rattle occurring even at idle(taken two days ago)
https://youtu.be/BMorePYHrvM

Grinding/whirring on attempted start(Taken after the loud rattle started and I pulled over)
https://youtu.be/FmIdrsUA9dk

Yep, it sounds like there is a problem with the flexplate or with the starter itself. Time for an operation - :(

humfrz

That sounds like a good place for it. I have a feeling there is more than one thing wrong with that engine.

Let us know what the shop finds out.

Good luck.


humfrz

Oh that ain't no heat shield! Don't know what it is but it doesn't sound good.

To be honest I thought that was a joke :laughabove: I was like "...Normally Tcoat's so helpful....thanks...."

Could be throw out bearing or the shaft it rides on wasn't cleaned properly. Did they change your clutch bearing during the install?

From your original description I thought it was just a heat shield since I had the exact same thing and that was all it is.
On a second listen of the first video it could be an exhaust leak vibrating a gasket.
Not sure what the others could be.