Well I have finally killed my engine after 2 1/2 years of boost daily driven, I am guessing its a spun bearing, the cars making a crazy tapping noise it increases with rev's no smoke and still runs fine the noise it coming from cylinder 3 so it could still be a cracked piston also..

But I am thinking bearing anyway can you reuse the crank after something like this? It will be marked I guess what to you have to do to reuse it and how costly is it.

D16a6 it was a bit low on oil on the last dot on the dipstick, so that could be been a factor....

 

usually if the crank is too scarred up, you may not be able to reuse it. It's better just to get another crank.

 

How do you define to scarred up?

 

I have a D16y8 short block if interested
It would be better to get a new crank if damage is slightly you can have it ground but you'd have to do you homework with bearing clearences

Make sure you take it a GOOD machine shop you still want the journals to have a radius

 

std / std is the only way to go for a performance motor. If it looks even vaguely damaged go get another crank.

you have a d series parts are like $.50

 

Check your rocker arms first. If you spun a main, you would lose lots of oil pressure and the engine might last another 10 minutes...it is something else

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">Check your rocker arms first. If you spun a main, you would lose lots of oil pressure and the engine might last another 10 minutes...it is something else</TD></TR></TABLE> How do you do that? We have taken off the rocker cover and had look about, mechanic reset the tappets to make sure it wasn't them.. Unfortunately I don't have an oil pressure gauge? He spun the crank a few times and couldn't see anhything? Appreciate the feedback

 

it was just a guess on the rocker arms
try this..run the engine and pull the plug wires one at a time...see if the noise goes away...that will isolate as to which cylinder has the problem

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">it was just a guess on the rocker arms
try this..run the engine and pull the plug wires one at a time...see if the noise goes away...that will isolate as to which cylinder has the problem</TD></TR></TABLE>Done that it get quieter with less load ie only running on 3 but it never go's away. The noise is coming from the number 3 cylinder used a long handled screwdriver to listen to it. I'll go pull the plugs now and see how they look maybe it is a cracked piston??