knocking

[240xtreemburn]

I have a 1990 240sx with 143,261 miles on it and it just started knocking it has a ka24e is this normal for this motor to begin this so quickly?

[dkdeleon68]

where is the knocking coming from

[240xtreemburn]

the knocking is coming from the bottom end i think it might be as rod bearing oh well all the more reason for a s13 silvia front clip swap

[dkdeleon68]

just change the rod bearings

[240sxmech]

FIRST of all you cant just change the bearings and it expect it to be ok.When you spin a bearing which causes the knock you are also scoring the journels of the rod or the crank, so you must have the crank or rods reground and polished.