What to do ? devious_ka u may know..

[180sx]

So i haven't had much progress over past few month , its getting warm and my storage lease is up on 1st of next month...

Basicly http://members.shaw.ca/uden/kae.avi that clip has audio of my problem...its the loud tapping that comes at about 2500rpm and stays till about 4500rpm . engine is ka24e with about 200k kms new gaskets/clutch not sure about when rings /bearings were replaced , but it bearly burns oil.Noise shoved up out of nowhere about 3 days after new clutch got put in.

I asked few month ago if anyone had similar problem or what should do or try.? most people sad either lifters or oil galleries.

I was donated an extra Head by local memeber.

so i swapeds over lifters/rockers assy made sure there is proper amount of oil in there. still getting the same noise. there is no performance lack but its so damn loud driving it to storage people looked at me like i have turbo diesel truck...

so lifters elimanted ... i used stethioscope and honestly ka is 1 loud motor ,its hard to pin point it, i would say its coming from the 3/4 cyl or bellhousing area. i du not feel that its cousing any vibration on any part of the motor./ i reved the heck outta my car from 2000-6000rpm waiting for noise to go away or for piston to pop out...neither happend.

now i am lost is it:1clutch related ? i used stethioscope and inserted it around the fork area in the transmission nothing special there. 1 thing i can't check is pilot bearing?

2 chain/tensioner ? did my chain skipp a tooth? tensioner defective or oil pump not supliing enough oil?

3 real dirty oil passages in cyl #x and lifter is acting up due to low oil pressure./ can i clean em with wire(plumerrs snake) etc or machine shop is my only option ?

cmon guys help me out here haha i don't wanna pull the motor out and rip it apart to find out that i didn't have too also my space is limited as far as hoisting the motor out can i just pull the head off and than the block, leaving transmission still in the car

ka- me

[1995240sxSE]

honestly if it happend 3 days after your clutch job I would say check out anything that you replaced, pull out and then reinstall, see if it is still the noise!

[Aworkinprogress]

does it happen only under load?

[Florida240sx]

You get ti done by a good shop???? Maybe no pilot bushing? Not rod knock is it?

[deviousKA]

I dont have a fast connection to do downloads and stuff like that, are you sure that it is internal and not an external rattle associated with anything that may have been removed or loosened during clutch install?

If you are certain it is coming from the rear of the engine and trust your own judgement that it isnt the lifters or the timing chain, your looking at either bearing or piston pin bushing issues although highly unlikely considering the symptoms.

Check all exhaust and misc. transmission associated brackets, etc.. I thought that I had broken a valve stem or piston crown one night, next morning I checked it out and an exhaust plug was loose Just hope for the best and keep at it, its difficult to pinpoint engine problems over the internet.

[LEMHEAD16]

Sounds to me like rod knock or piston slap. I don't see how a clutch could make that kind of noise (unless there was no pilot bushing) I would drop the oil pan and look for discoloration of a rod (if it got hot) or see if there is any movement of the rod on the crank. Front to back or side to side

[180sx]

well guys thanks for input so far

1 clutch was done by me / i did 3 clutches before never had this symptom, can pilot bearing make this kind of noise ?>?? anyone here

and the video is just car sitting in the garage so no load, but noise is abit more loud under load, dunno why or it may just seem that way to me.

noise is 100internal i am sure of that!

guys if oil gallerie is pluged and limits oil pressure to 1 lifter would a lifter make that kind of noise ?

main bearing / rod bearing that would be constant noise ur engine is always rotating so noise would be present at all times , and i belive rod bearing sounds like a train tap-tap tap-tap , and main bearings would get more of acelerated tap as engine turns faster, piston slap i would hear with stethioscope in that 1 particular cyl? wouldn't i?

[180sx]

just got a call back from my buddy , he is nissan blind honda loving dude but quiet mech inclined he had rebuild some motors and turboed numerous cars ... he is my go to guy for advise. he was in the garage checking it out for me while i am at work here,

well he says he fcuked with thesioscope and 70%sure its not coming from these areas: head, timing cover , block, he didn't find my car jack to go under to listen to the transmission , but his opinion is if it was honda it would be pilot bearing!damnit i hate duing clutches with no hoist , 1 havy sob transmission ....

also he isn't 100%sure cuz he never took that car apart with me nor seen one apart before . he suggested that i ask u guys if anyone ever had bad pilot bearing on ka before and was it the same synptom ?(noise level 2500-4500 rpm presents ).tap tap tap etc? so anyone can help me here?

[LEMHEAD16]

What kind(brand) of clutch kit was it, you installed. Was it a sealed package or loose pieces? There is a way to clean oil galleries with Auto transmission fluid but, it is risky and would be one of my last resorts.

[TrunkMonkey]

Check all exhaust and misc. transmission associated brackets, etc.. I thought that I had broken a valve stem or piston crown one night, next morning I checked it out and an exhaust plug was loose Just hope for the best and keep at it, its difficult to pinpoint engine problems over the internet.

i swear it sounds exactly like the exhaust leak that i had with my 89 fastback. it turned out to be a combination of one missing and one loose bolt on the exhaust manifold.

-demetrius

[x3whlmotion240sx]

exhust leak.or depends on what type of cluct my centerforce rattles more then that because of the weights on the presure plate

if it was the pilot bering wouldn't it do it from 2500 or were ever it starts to redline it wouldn't just stop at 4k

but also idonnno but check the gear fluid...see if its were its sopposed to be at its sounds like a little metal on metal

[180sx]

exhaust knocking etc no it is int like that i checked all i could and 100% sure its internal.

clutch rattle? i would agree but i have never though that brand new clutch could have that much play to make that much noise.

[x3whlmotion240sx]

u said only after 3 days it made that noise did u give it a proper break in? iv seen some werid sh*t because of no break in time