Originally posted by MapOfTazi ohhh right:
Originally posted by jaged:
obviously i havent had to deal with anything internal happening before on either of my duratecs so how bout trying to explain to me what a spun bearing sounds like. right now it sounds like a card in a bike spoke, but only metal sounding. Ive read all the FAQ's and it didnt help me had a couple mechanics listen to it at the meet at my house this past weekend and they said that it didnt sound like a bearing. Ill drop the pan and check it out, but its always better to explain stuff instead of just saying "do this"



It sounds like what you are describing!!!! It doesn't matter if it is a duratec. Rod knock is rod knock! To check I would give each conrod a little jiggle to see if there is any play!

Also a spun bearing wouldn't mean that you would lose oil pressure entirely! The car wouldn't run without oil pressure! You would notice a loss of oil pressure if the pan ran dry and you weren't pumping oil.



When I spun 2 rod bearings, plus 1 main bearing in my stock 2.5 I had no knocking at idle at all. It was fine until about 2800 RPM, then it sounded like it was coming apart... tick tick tick isn't typically a rod bearing sound, more of a thunk thunk thunk coming distinctly from the bottom of the engine.

To me, it sounds more like a stuck lash adjuster, or a bad follower if it's coming from the top of the engine (very easy to check with stethescope (SP?).

If the sound comes more from the middle of the engine, bad rings, or broken ring land. Can usually pick those up listening to the exhaust pipe comming from that cylinder (hard to do in a Contour).

If it does happen to be coming from the rods, you can check that with a stethescope without removing a single part as well by listening to the pan at different points with the engine at idle (with the car properly supported by stands of course).

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