yesterday i was racing and i happened to misshift and it wasnt like a really bad misshift but this morning the car seemed fine but later today my motor started to make a constant clicking sound. if sumone culd tell me what the problem is and how i can fix it thatd be great

 

rod knock or spun rod bearing.

 

do u have a rev limiter? if not how high did it rev when u missed

 

it could be one of a few things either a rod knock, a rod bearing spunm or you need a valve adjustment if your car has a rev limiter its prolly just a simple vavle adjustment but if your car doesnt have a limiter like mine and you misshift you could have spun a bearing which i did also what motor is it and is it a clicking sound from the top of the motor under your vavle cover or is it a deep kinda clunking sound from your bottom end?? just let us know what rpm you went up too and that can help diagnose the problem too

 

Where were you racing?

 

i have a b18c5 and yea its comin from under the valve cover. and when i mishifted it went way past redline so like past 9k

 

Perform a compression test. I assume this was the money shift (3rd redline to 2nd)? What ECU? Any CELs?

 

You prolly spun a rod bearing

 

there a simple test you can do to check for rod knocks or spun bearing , turn on your motor when is cold and take one sparkplug wire at the time and place it back ondo thison eash one ,the knock should minimize on the damage bearing or rod because there is no stress in it , try to do it when is cold, if the noise still there after doing this you problably want check your valves. ?is your car missfiring?

 

Rev limiter has nothing to do with this - it cannot do anything to prevent a mechanical over-rev (e.g., a mis-shift).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jonjpark16 &raquo;</TD></TR><TR><TD CLASS="quote">i have a b18c5 and yea its comin from under the valve cover. and when i mishifted it went way past redline so like past 9k</TD></TR></TABLE>


have you takin the valve cover off and checked each one of your rocker arms??? cuz if one is off then you just gotta do a valve adjustment and the noise should go away

 

Is it a slight top end tick or is it a deep bottom end knock. There is a difference, im not sure how mechanically inclined u are but you maybe be able to listen closer with a stethoscope

 

no its not misfiring.
i found out that its comin from my valves but i havent got the time to take off the valve cover yet. but i will be doin that tomorrow