97 Prelude with Mahle 9-1 Pistons with Eagle Rods, ARP Head/Main Studs, RC 550's, Cometic HG and a P28 ECU w/ Crome and a greddy Turbo Kit. The engine has a loud ticking noise at low RPM's that seems to subside with RPM's It's possible that the engine noise overpowers the noise and it still exists but it's less audible with RPm's..under valve cover everything looks fine and a valve adjustment was just done since I thought it was the valves so I had machine shop inspect the head and replace all valves... The sound almost sounds like a rod knock but it definitely sounds like it's coming from the head. the ticking/knocking noise seems to come from lower on the head...and It's not just an injector ticking; it's pretty loud and more like a knock. PLEASE HELP!

 

Bump for any help

 

check the lma's

 

Hi, my Prelude has the same problem but it's all stock except the AEM CAI.

So if it's the LMA, how do I fix it? Thank you

 

replace them

 

Lmas are the 2 long cam covers right? How can that go bad..it just sits there and is tighten down by bolts...

 

wow you dont know **** about your own motor, no lma= lost motion assemblies do some research before you make incompetent posts

 

Easy does it noob. Everybody has to learn.

 

What are the LMA's? Dont think we have them on our Scion motors, so Im not sure what they are XD.

 

just because you think you know how to read my join date dosent mean this is my first hondatech name dumb ***

 

easy guys

 

Glad I asked. Good luck with the pompous attitude.

 

your a dumb a** .

Any type of knock that seems to be getting worst isn't good at all . I think it's time to take the motor out and take it apart to really see whats the problem not worth playing the guessing game on a forum when it comes to engine knocks .

Good luck man ,

 

Getting back onto topic, there are a few write ups on LMA replacement already, not any that I know of for the H22A but its the same procedure. Takes a fair bit of time I would imagine but may be well worth if the nasty but shuttle LMA sound is present.

https://honda-tech.com/forums/showth...MA+replacement

https://honda-tech.com/forums/showth...MA+replacement

 

Thank you

 

I'm always stuck at work and I don't have much web access! And that was a guess cause some1 else told me it was something like that.

 

Is there such thing as lifters going bad on the h22 head?

 

what tune is it on? and who tuned it? surprised no one asked that

 

is the sound one speed or double speed?

 

Are you running the Mahle Gold series or is your block sleeved?

 

Yes tthe mahle gold series

 

1. Quote:

   Originally Posted by dagle

   what tune is it on? and who tuned it? surprised no one asked that

It doestnt have a proper tune..is tuned on a v-afc by pruven performance

 

So how many times have you been banned?

 

please do not drive your car like that. it sounds like you already got some issues under the valve cover so don't blow it up.not sayin I know for a fact its gonna do that but its not worth the risk IMO you already have a nice looking parts list so spend a grand or so more and get a S300 and a proper tune, and see what the ticking sound is. My bet is on the LMAs. these turbo Preludes are very tricky it seems but if you get the bugs worked out,should be worth every bit of headache.Good luck man.

 

Thanks bro.I can't wait to see the power with a proper tune..I already ended. Up with 330whp at 12psi on a 20g turbo.(small) and afc....so I hope a lot more with good tuning..BACK TO SUBJECT...UPDATE!! I DROVE IT TO MACHINE SHOP AND HE TOLD ME TO BRING HIMTHE OIL FILTER TO LOOK FOR SIGNS OF DAMAGE TO BEARINGS, AND HE ALSO AGREED WITH U ON REPLACING THE LMA'S....but my only question is, don't the lmas only make a difference on higher rpms? Because u can only hear the knockin at low idle when parked, and as soon as I start to drive and I'm not on high rpms...when I'm parked and I rev it up to about 3000rpms, u can't really hear the noise....