hey guys,

i got a b16a and im getting a strange sound at around 3k.it sorda sounds like a rod knocking or timing belt slaping the lower cover,and it only seems to happen at 3k. anyone have ing idea what it could be.i changed the crank pulley cause it had a big chunk missing from it so i changed it an d it still does it.if anyone can enlighten on this?

 

ONLY at 3k? or above 3k. Anyway you can post a video of the sound?

 

no sorry i was i could.ok it only right at 3k ad shuts up at 3100.ok at first i had a crank pulley with like an icnh long chuck taken out of it,so i changed it to a ctr pulley fyi(i dont want to hear about how it sucks nut it just now it really dont make the loud clacking sound that much.i thought it could have been the crank pulley throwing the bottom end out of balnce.like i said it didnt shut the noise up just queited down.well i been doing lots of searching and came up with the LMA being bad.

to be honest it does sound alot like the timing belt is slaping the lower cover but its not.(trying to give u a good idea of what it sounds like.)

 

so you've checked the belt and its tight then?

 

yea, when i had the crank pulley off i checked it and made sure the tension was right.

 

Scotty whens the last time you did a valve adjustment? It could be the lma's too

 

e a valve adj. having the b16,all my feeler guages are in my tool box which is some where in cali.now that u said something ill prob do that tomrrow.
if it aint the LMA then i think it may be a rod bearing spun out out of place,but even then it SHOULD make the nosie during warm up and it dont.

its hard to admit to myself its a spun bearing!!!!!!!!!!!

 

I have all the stuff here at the house. The cool tool to make it easy and all the feeler gauges you can think of

 

yea we will do that this weekend.