Whats going on members ??, I found a 92 DA that I could not pass up, $400.00 the car has a little rust and a knock in the motor, now the previous owner and I found out the knock is coming from cylinder 3, the knock starts at 2000 RPM, now I pulled the 3 cyclinder plug wire and the knock went away, and started to miss, like it should since there is no spark LOL, the previous owner says its the rod bearing thats causing the issue with the knock, does anyone have any suggestions on what could be causing the knock with the DA, the motor has around 200k, timing belt has been replaced just incase anyone wanted to know

Thanks

 

well the knock is definately the rod. It's either got a loose wrist pin or a spun bearing. when you pulled the wire it stopped igniting the chamber so theres no as much pressure on that rod.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gonmaro &raquo;</TD></TR><TR><TD CLASS="quote">well the knock is definately the rod. It's either got a loose wrist pin or a spun bearing. when you pulled the wire it stopped igniting the chamber so theres no as much pressure on that rod.</TD></TR></TABLE>

That true, do you think if I replace the rod bearings the prblem will be fixed ??

 

Id just run the engine till it died then throw in a replacement, That would probably work out cheaper.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94DCTeg &raquo;</TD></TR><TR><TD CLASS="quote">

That true, do you think if I replace the rod bearings the prblem will be fixed ?? </TD></TR></TABLE>

if your looking for a cheap fix then you can get a set of bearings, and roll them in,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">

if your looking for a cheap fix then you can get a set of bearings, and roll them in,</TD></TR></TABLE>

That is what I was thinking about doing...Thanks for the Help and the fast answers, This may sound stupid but could it be a stuck injector that could be causing the knock in the 3rd cylinder or am I wrong

 

drain oil and cut the filter open, if you find flakes then its a bearing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">drain oil and cut the filter open, if you find flakes then its a bearing.</TD></TR></TABLE>

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">drain oil and cut the filter open, if you find flakes then its a bearing.</TD></TR></TABLE>

Should I measure the crank to make sure I get the correct rod bearing size ?? or would standard size rod bearings be fine ?

Thank you