bad ticking noise when reving

[Archer Fabrications]

i have BC272/272s with no upgraded springs or retainers... after doing a long 3rd gear pull trying to get to redline while logging i got some misfires... after i parked at home and backing up into my parking spot i noticed this loud ticking everytime the motor revs. i dont know if this video captures it very well but i hope someone can hear waht i hear in it. im gonna pull off the valve cover this weekend and see what the damage is, if any. i have topline 3g lifters also so i doubt its lifter tick. it definitly sounds like its comming from the valve area.. the timing belt is still tight..

you can hear it best when i rev it for the 3rd and 4th time.... WTF IS THIS!?!?!

what is this ticking when i rev - YouTube

log:

 

[WES_393]

Possibly a spark plug wire shorting? Either that or an exhaust leak. I couldn't hear much in the video but from what I could hear it doesn't sound like a rod or anything. So check the wires and exhaust studs.

 

[Archer Fabrications]

im thinking vent valve or a rocker arm that has been thrown off the lifter.. im pulling the valve cover this weekend to take a look, but it definitly sounds like its comming from the head, im not gonna be going anywhere without first doing a compression test... which i have to go find one. ordered a tester from napa, will be here tomorrow morning so ill do the test tomorrow night

im dreading to find out what it is.... it sounds like its something with the cams/lifters/rocker arms so i think... but i have no clue.. i dont THINK it is comming from the rods.. and i hope it isnt

 

[Archer Fabrications]

did compression test yesterday. got 185 190 185 185 so i think my rings are good... pulled the valve cover and didnt see anything unusual.. timing belt is tight, im scared it could be a rod bearing... although i had my oil pan replaced last month and retorqued the rods and they didnt move and were solid... im kind of stumped as to what this is .. the car sort of sounds like a subtle TDI jetta... spark plugs were good no black anything on them... when i looked into the cylinder at the piston i couldent see much just carbon build up..

 

[BogusSVO]

What is your oil pressure at
> Cold idle
> Hot idle
>cruise
>upper RPM/redline

With the stock springs, they just could be a tad too weak for the BC272 cams and you are hearing the followers clicking on the back side of the lobe.

http://www.dsmtuners.com/forums/newbie-forum/341287-how-test-valve-springs.html

http://www.dsmtuners.com/forums/cyl...omparison-stock-hks-bc1100.html#post152945194

http://www.dsmtuners.com/forums/newbie-forum/341209-4g63t-valve-spring-info.html

 

[Archer Fabrications]

What is your oil pressure at
> Cold idle
> Hot idle
>cruise
>upper RPM/redline

With the stock springs, they just could be a tad too weak for the BC272 cams and you are hearing the followers clicking on the back side of the lobe.

http://www.dsmtuners.com/forums/newbie-forum/341287-how-test-valve-springs.html

http://www.dsmtuners.com/forums/cyl...omparison-stock-hks-bc1100.html#post152945194

http://www.dsmtuners.com/forums/newbie-forum/341209-4g63t-valve-spring-info.html

well i went under the car by the oil pan and could hear ticking also... not sure if its from the same place its hard to pin point....


cold oil pressure 75psi
warm-30psi at 1k idle
decel 60psi
boosting 85-90psi
cruise-65-75psi

i have a ported ofh also. thanks for the links i guess ill have to get a spring tester.... wasnt really looking forword to that. im hoping an oil change will tell me if there are any shreaded bearings floating in the oil (or sinking for that matter) i shift at 5-6k rpms with a rev limit of 7k if that helps also that sound in the video i didnt hear a second time when i was warming it up for the compression test. although i drove to the grocery store and heard a faint ticking while driving... it was hard to tell cause i have polly motor mounts and the car is really loud, but if i drive by a building and hear the noises bounce off the walls i can hear the ticking and im REALLY just hoping its not the start of rod knock. i know if i catch it early all i gotta do is replace the bearings. although i havent ever pulled the oil pan myself and this is my daily driver so im sort of pissed at myself for doing that 3rd gear pull... although this could have been caused by the evo8 mod 1 timing map i did one pull on not too long ago

 

[laserspeeddemon]

..... I didn't hear a ticking?

 

[Archer Fabrications]

..... I didn't hear a ticking?

listen to the 3rd and 4th time i rev it and when i bring the camera by the wheel well... you can DEFINITLY hear ticking but only when it revs.. i guess if you wanna get technical.. its more of a raddle inside the engine somewhere watch it til you hear it, because you can 100% hear it 4th time i rev is the clearest.

 

[laserspeeddemon]

It may be my weak headphones.

 

[Archer Fabrications]

It may be my weak headphones.

right after i throttle it.. and the engine revs and THEN starts to slow down.... you hear it when it starts to slow down right after letting off the gas. what it sounds like to me is the cams hitting a lifter with no rocker arm making a chatter sound... but like i siad i pulled the valve cover off and everything was good..

it really sounds like its comming from the exhaust cam area by cyl #4 but i cant put my finger on it cause there is nothing wrong with the head as far as i can tell.... here are some pix if anyone sees anything out of place that i may have missed. i checked and everything was still tight and un-movable really dont wanna have to pull the oil pan

compression showed good so that would rule out bent valves correct?

engine currently has 3250 miles on it

 

[Archer Fabrications]

popped under the car by the oil pan, didnt hear any ticking on the cyl 1 side but when i went over to the cyl 4 side by the oil drain tube, i heard ticking, could be transfer case or clutch though.... as the car kinda jolts in first after i have disengaged the clutch, sugguestions? i hear the ticking while driving but its faint and not heard very well over the exhaust.. i can only hear it when the rpms rev down from a certian point, as low as 3k rpms.... i dont hear anything abnormal on decel at any rpm or when down shifting though.... i am stupmed

 

[snooopy365]

Use a screwdriver and one ear to locate the sound.
(put the handle on your ear and than put the tip on the valvecover)

So you can really pinpoint where the sound is coming from.

I do have a similar sound and it seems to be one bad lifter, haven't changed it yet and sound haven't changed the last 30k miles so I'm not really worried

 

[Archer Fabrications]

I hear minor ticking from the 4cyl side but i hear the sound in the video if its in neutral, if i put the clutch in thensound is gone, but i hear quiet ticking which would be normal sounds... The car started bucking today i think i might have bad plugs, have new bpr8es And ngk wires on the way. Although if i did have a spun earing could it cause the car to jerk? It coukd just be hella misfires,
Even before boost... Car runs like crap right now

edit:
still trying to get to the bottom of this noise... the noise in the video seems to be seperate from the oil pan noise... i noticed that with teh car in neutral and the clutch up (not depressed) and if i rev up to 3k i hear that noise... engage the clutch (push down) and rev and hear no noises... very odd.. any ideas?
edit #2
my builder sugguests throw out bearing could be to blame for the noises, now im battling misfires sinve i did a compression test, although he has not seen or heard it in person, does it sound plausible?

 

[Spoolin4Ever]

So is this a rebuilt 7 bolt, like your original engine got rebuilt or is it a 6 bolt?

What kind of build was it besides the cam upgrade?

You now have misfires right after doing the compression test? Did you get the plug wires back on with the right firing order for sure?

As far as the throw out bearing, how old is yours? Like how many years and/or miles?

So how is it running exactly? Is it getting progressively worse since you first started hearing that noise?

 

[Archer Fabrications]

Not progressiy worse its a brand new 6 bolt with 3300 miles on it car shifts like butter still... Head is stoc except cams its a 2g head. Look at my build thread if you want all the mod list

Its in the correct firing order, wires mst e origional, they look okay but i have new ngks on the way car mostly misfires before boost now but it used to have blow out simptoms while in boost. My bpr8es are gapped to .028 right now

 

[Archer Fabrications]

Everything has 3300 miles except the tranny... Which i believe could have the origional TOB, not sure i didnt build the motor just helped install it and indid all the bolt ons myself clutch and pressure plate an flywheel are also new.. Im ordering a spring 6 puck this time around maybe itll be less chattery and easie on the tranny, oem TOB, and forged shift fork and new pivot ball

Build thread: http://www.dsmtuners.com/forums/dsm-build-journals/420984-my-6-bolt-swap-my-99gsx.html

 

[Archer Fabrications]

pretty sure its the TOB ill let you guys know when i pull the tranny, got my parts just waiting on my buddy with a crane to pull the tranny. I'll be checking the input splines also, hopefully not sheered from my solid 6 puck :S

 

[Archer Fabrications]

replaced the TOB and fork with a competition forged fork, didnt shim the new ball on this one, noticed the fork sits a hair past half way tword the passenger side, but i think ill be fine. i just hope that was what was causing my noises... i have the trans bolted back up, got MT90 today and im gonna fill her up and see if it went away! wish me luck

 

[Archer Fabrications]

Okay so everything went well with the trans but noise us still there
sorry it was dark, but the sound is really the only thing you need here.

not safe for work
http://www.youtube.com/watch?v=I1_IxT-Y_yI

 

[Archer Fabrications]

Could be something broken on the clutch disk? It drives fine shifts fine its jus annoying, wonder if this noise is why my trans fluid had flakes

 

[Spoolin4Ever]

Does it still backfire after the new plugs? At what RPM? You say only in boost?

Hey in the recording I don't hear it that much cause loud exhaust, but speaking of exhaust could it be exhaust or other heat shields rattling?

 

[Archer Fabrications]

Does it still backfire after the new plugs? At what RPM? You say only in boost?

Hey in the recording I don't hear it that much cause loud exhaust, but speaking of exhaust could it be exhaust or other heat shields rattling?

its never backfired.. it used to have sort of bucking but that was cause of a boost leak. but no i dont get anything like that anymore

I get boost from 4300-7k but i hear the noise only revving to 3k in neutral. its 100% something up with the transmission/clutch. You can clearly hear it in the video man its the only rattling sound after the rpm starts to dip from peek rev. i have no heat sheilds at all. and my exhaust is tight no leaks.

listen with better speakers. it only happens when the clutch is out (disengaged)

 

[jtmcinder]

Thanks for the NSFW warning on the video, especially when we have to play it loud to try to help you.

 

[Archer Fabrications]

Thanks for the NSFW warning on the video, especially when we have to play it loud to try to help you.

NSFW? whats that? sorry its the only video i had of the best capture of the sound, i didnt say play it loud i just said better speakers

 

[jtmcinder]

"NSFW" = not safe for work. It's what you ALWAYS include when the post/video/etc has nudity or a loud swear.