I have this huge knocking noise in my block because we checked to see where the sound was coming from but it was no from the head. So it is a really loud noise something like trrrrrrrr and it only happens like at 2k and up, like at idle nothing sounds. what could this be because a mechanic told me it coul be the pistons that could be knocking really bad and another one told me it was the main bearings. can somebody please help and what to do. Thanks.

 

could be rods, mains, or a broken piston skirt, is prolly going to require a teardown and rebuild maybe a new crank, hard to say till you get it apart.

 

maybe your autotensioner is going bad

 

Recently I took the rods and pistons out to put some h22 pistons in the h23 rods. rods were ok, and h22 pistons too. If it wold be the main bearings how would I know without opening the motor just yet. rod bearings are new, only thing not changed was the main bearings.

 

i still could be rod bearings actually...i have seen new ones knokc withint 1000 miles

 

did u check the clearance with plastigauge? and do u kno how much oil psi ur carrien? maybe u washed the mains-

 

Rod bearings at 1000 miles? well mine have only 500 miles, and the sound is really really bad, but they told me that if it would have been the main bearings it would have a very bad vibration not a knocking noise, so I really don't have a clue now.

 

who installed the rods and rod bearings? Take it to them I think they might have screwed it up.

 

How could it be installed wrong?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NeriVTEC &raquo;</TD></TR><TR><TD CLASS="quote">How could it be installed wrong?</TD></TR></TABLE>

torque specs for one

 

ok so torque specs, could it also be possible that the rod is damaged or something? (I didn't see anything wrong with them but maybe I should check them for the specs??)