2G Tapping sound coming from engine and a rattle when I rev the engine

[Salcidodsm]

Just to start, I have a 95 2g Eclipse with a 6 bolt swap from a 92’ and I'm not the one that swapped it so im not 100% as to whats all done to it besides a built brian crower head, a 16g turbo, and its on ECMLink v3.

I must’ve missed it when I bought the car and I haven’t driven it much since buying because I've been doing small maintenance around the car mostly with the suspension. I started it today and notice a tapping noise coming from the engine and don't have the knowledge to pick apart what might be causing it just off of my ear so any help would be appreciated!

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[idkiliketurbos]

It definitely sounds like it could be lifter tick, but that usually goes away after running the car for a bit. I'd recommend filming the sound from the bottom of the car to see if the noise is stronger near where the rod bearings would be. Also, get a video of it revving.

 

[dwb]

Probably HLAs, which can be worse with a cold engine or low oil pressure. What weight oil are you running?

 

[Salcidodsm]

It definitely sounds like it could be lifter tick, but that usually goes away after running the car for a bit. I'd recommend filming the sound from the bottom of the car to see if the noise is stronger near where the rod bearings would be. Also, get a video of it revving.

this is a video i took revving it a bit sounds more like a rattle but i couldnt tell if that was from the engine or something else that may be loose

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Probably HLAs, which can be worse with a cold engine or low oil pressure. What weight oil are you running?

was lightly tapping still when engine warmed up a bit didn't think to check oil pressure at first but i will do that, i believe last owner was running the recommended oil i have plans to change it this upcoming weekend as i dont know how long its been since they’ve changed it what would u recommend? and would it help this issue out changing to a different oil?

 

[dwb]

this is a video i took revving it a bit sounds more like a rattle but i couldnt tell if that was from the engine or something else that may be loose

exhaust rattle?

was lightly tapping still when engine warmed up a bit didn't think to check oil pressure at first but i will do that, i believe last owner was running the recommended oil i have plans to change it this upcoming weekend as i dont know how long its been since they’ve changed it what would u recommend? and would it help this issue out changing to a different oil?

Double check the oil level too, if it's low it can cause the HLA's to tick like no other.
Oil weight is subjective based on how tight the oil clearances are and personal preference. I personally run conventional 10w30 with OEM clearances.

 

[danl]

That sounds deeper than lifter tick. I’d be yanking the oil filter and removing the paper media to check for the forbidden glitter….just to be safe.

 

[Salcidodsm]

exhaust rattle?

Double check the oil level too, if it's low it can cause the HLA's to tick like no other.
Oil weight is subjective based on how tight the oil clearances are and personal preference. I personally run conventional 10w30 with OEM clearances.

ill check the exhaust see if its rattling anywhere and double check oil level and change it out soon, and see

That sounds deeper than lifter tick. I’d be yanking the oil filter and removing the paper media to check for the forbidden glitter….just to be safe.

ill check that out for sure, what do you think it sounds like or could be the cause ?

 

[motomattx]

I have had these cars make that sound when the bolts that hold the idler or tensioner pulley for the timing belt come loose, and also have seen it when the timing belt tensioner is not set right or has failed, you should check those pretty quickly to rule them out, if its just the lifters its not so dangerous to run it at normal rpm, if its a problem with the timing belt components it cold cause engine damage.

 

[FIBA M - EC17PSE]

Check exhaust shields. It happens alot on any car and will sount very light tinny sounding similar to the last video. Rod knock is deeper then that so im fairly certain its a shield of somekind possibly even bearing on a pully, the bearing is a speculation so just check it all with some help so you can get on the floor and in the bay while a friend revs it for you

 

[Salcidodsm]

Check exhaust shields. It happens alot on any car and will sount very light tinny sounding similar to the last video. Rod knock is deeper then that so im fairly certain its a shield of somekind possibly even bearing on a pully, the bearing is a speculation so just check it all with some help so you can get on the floor and in the bay while a friend revs it for you

ill check this out for sure to see what i can find and hopefully not find any deeper issues , i appreciate the help with it!

I have had these cars make that sound when the bolts that hold the idler or tensioner pulley for the timing belt come loose, and also have seen it when the timing belt tensioner is not set right or has failed, you should check those pretty quickly to rule them out, if its just the lifters its not so dangerous to run it at normal rpm, if its a problem with the timing belt components it cold cause engine damage.

ive seen a couple of people talking about this ill check it out first chance i get to try and rule it out ! thank you!

 

[Salcidodsm]

Just to start, I have a 95 2g Eclipse with a 6 bolt swap from a 92’ and I'm not the one that swapped it so im not 100% as to whats all done to it besides a built brian crower head, a 16g turbo, and its on ECMLink v3.

I must’ve missed it when I bought the car and I haven’t driven it much since buying because I've been doing small maintenance around the car mostly with the suspension. I started it today and notice a tapping noise coming from the engine and don't have the knowledge to pick apart what might be causing it just off of my ear so any help would be appreciated!

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Just to start, I have a 95 2g Eclipse with a 6 bolt swap from a 92’ and I'm not the one that swapped it so im not 100% as to whats all done to it besides a built brian crower head, a 16g turbo, and its on ECMLink v3.

I must’ve missed it when I bought the car and I haven’t driven it much since buying because I've been doing small maintenance around the car mostly with the suspension. I started it today and notice a tapping noise coming from the engine and don't have the knowledge to pick apart what might be causing it just off of my ear so any help would be appreciated!

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not sure if this is the best way to post an update on my car still new to forums but ended up replacing lifters with the gsc no-tick lifters and it definitely has helped a little with the noise im still hearing a light tapping sounds like it may be coming from under the head a little bit not 100% on that yet though still trying to check it out but heres a video of it now almost fully up to temp

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[Salcidodsm]

not sure if this is the right place to post this but i made another post on this a few weeks back and ended up deciding on replacing lifters and that took care of some of the noise i was hearing but i still here some tapping and rattling when i rev the engine and while idling, i want to think its a bearing or maybe something loose rattling around but i also cant figure out what exactly it might be so any help would be awesome!( still fairly new to the 4g63)

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[Salcidodsm]

made another post a while back about some engine noise and ended up deciding on replacing lifters with the gsc no-tick lifters and it helped with the tick a lot but i still feel like theres more going on, i was assuming some sort of bearing or maybe just natural 4g63 tick even after lifter replacement but ive listen to it so much at this point im getting deaf to the sound so any help or advice for it would be appreciated

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[dwb]

Why not update the thread you already started, and address the questions/suggestions that were posted there?

https://www.dsmtuners.com/threads/tapping-sound-coming-from-engine-and-a-rattle-when-i-rev-the-engine.544850/

 

[pauleyman]

remove accessory belts and take that stuff out of the equation. Also test if clutch in/clutch out makes a difference. i assume you're 5 spd

 

[Salcidodsm]

Why not update the thread you already started, and address the questions/suggestions that were posted there?

https://www.dsmtuners.com/threads/tapping-sound-coming-from-engine-and-a-rattle-when-i-rev-the-engine.544850/

i posted an update on that thread just by replying to my first post which im sure wasnt the right way to do it but im not sure how to really update on here the correct way yet

remove accessory belts and take that stuff out of the equation. Also test if clutch in/clutch out makes a difference. i assume you're 5 spd

ill do that! and i did test this but no rattle really unless i have clutch pushed in and in gear and i start to accelerate really only hear much rattle from that when i don't let off clutch and hit gas with the right timing when shifting otherwise no noise when i just push clutch in or let off clutch normally

 

[pauleyman]

What?? Please clarify.

You now have three threads on the same topic. Please don't do this. It doesn't help us help you.

 

[dwb]

@Salcidodsm, please post (reply) to this thread to continue your discussion. If you are not getting any responses, it may be that we don't have enough information or previous questions have not been answered. Also a more detailed vehicle profile would be beneficial. All I know is this is a 6 bolt in a 2g GST. Manual or automatic? What mods? The more we know about the issue and car, the better we can help.

I understand you replaced the HLAs which helped some, but you still have a tick. It's really hard to tell from your last video if this is "normal" tick or not. Even a healthy 4g63 has some amount of noise in the valvetrain.

A few things that were asked or suggested that I haven't seen an update to (I apologize if you did and I missed it):

• What weight oil are you running?
• Is the oil level appropriate?
• Have you drained the oil/cut open the filter to inspect for metal shavings/glittery looking oil?
• Inspected your exhaust for rattles?
  • maybe check for an exhaust leak too
• Is it more noticeable on the front (timing belt) side vs the back (trans) side? Possibly it's neither.
  • If front side:
    • Disconnect accessory belts to see if the noise gets better. Keep in mind the alternator belt runs the water pump too, so don't run it very long like that.
    • Timing belt tensioner or other front case components could be loose. Best to stop driving it and inspect ASAP.
  • If back side, not sure if this is a manual car, but does operating the clutch change the noise?
• Does the noise change based on the engine temp?
• Oil pressure would be good to know if you can hook up an aftermarket gauge.

 

[Salcidodsm]

What?? Please clarify.

sorry that was a lil confusing so only difference or noise i hear that i can link to the clutch or throw our bearing or anything would be when car is in gear and clutch is still engaged and i rev the engine. not sure if that explains it any better but simply pushing clutch in or letting it out makes no noise only happens when clutch is still engaged and i rev engine or accelerate without fully letting off of the clutch

You now have three threads on the same topic. Please don't do this. It doesn't help us help you.

wasn’t trying too i didnt get any replys on the first one which i assume was because i didnt update the correct way but i also wasnt sure how to do that, the 2nd in the engine and tuning was an accident and i dont know if theres a way to delete it or how that works this one was the one i made trying to get an actual answer since i messed up on updating the first one i do apologize just not used to being on a forum not sure how it all works

@Salcidodsm, please post (reply) to this thread to continue your discussion. If you are not getting any responses, it may be that we don't have enough information or previous questions have not been answered. Also a more detailed vehicle profile would be beneficial. All I know is this is a 6 bolt in a 2g GST. Manual or automatic? What mods? The more we know about the issue and car, the better we can help.

I understand you replaced the HLAs which helped some, but you still have a tick. It's really hard to tell from your last video if this is "normal" tick or not. Even a healthy 4g63 has some amount of noise in the valvetrain.

A few things that were asked or suggested that I haven't seen an update to (I apologize if you did and I missed it):

• What weight oil are you running?
• Is the oil level appropriate?
• Have you drained the oil/cut open the filter to inspect for metal shavings/glittery looking oil?
• Inspected your exhaust for rattles?
  • maybe check for an exhaust leak too
• Is it more noticeable on the front (timing belt) side vs the back (trans) side? Possibly it's neither.
  • If front side:
    • Disconnect accessory belts to see if the noise gets better. Keep in mind the alternator belt runs the water pump too, so don't run it very long like that.
    • Timing belt tensioner or other front case components could be loose. Best to stop driving it and inspect ASAP.
  • If back side, not sure if this is a manual car, but does operating the clutch change the noise?
• Does the noise change based on the engine temp?
• Oil pressure would be good to know if you can hook up an aftermarket gauge.

i do apologize for the other threads and if theres a way for me to delete or remove them i will just dont know how too, car is a a 6bolt 2g standard 5 speed with a rebuilt bottom end i assume mostly stock i bought it rebuilt. the head is rebuilt with a brian crower kit i cant remember the full specs on that right now but i can get them, oil is 10w30, oil level is where it should be, oil pressure sits anywhere around 15-20psi, no shavings or glitter in oil or filter it was all changed about 30 miles ago, have not check exhaust but could be a rattle from exhaust header if so will check that out later today, noise is coming from trans side and i haven’t heard much of a change coming when operating clutch other than a louder rattle when i rev engine while clutch is engaged, noise isnt terrible but seems to get louder as car warms up and then will slow or quiet at times

 

[dwb]

All good info, thank you. I've had broken clutches make rattling sounds with or without engagement. The noise changed depending on RPM. Eventually leading to total failure at the worst possible time.

 

[TedBrosby]

All these comments and you never said what the oil looked like . Did you ever pull the filter and check?

 

[Salcidodsm]

All these comments and you never said what the oil looked like . Did you ever pull the filter and check?

i did on my last comment where i addressed everything that was asked but oil is fine a bit dark as it was ready to be changed but no shavings or anything out of the ordinary