what is this "CLANK-CLANK-CLANK-CLANK" noise?
#1
Tour de Franzia
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what is this "CLANK-CLANK-CLANK-CLANK" noise?
I have a horrible clanking noise coming from the front of the motor that I thought was a lifter, then pulled the valve cover and everything looks good with no metal and no strange wear. When tuning the crank by hand I hear/feel a tick on the crank rpm, not the valve train.
I'm going to go ahead and buy expensive feelers and check the valves, but I fear bottom end disaster like a spun bearing. Are there any other ideas on what this could be?
So much for TXMC Houston.
I'm going to go ahead and buy expensive feelers and check the valves, but I fear bottom end disaster like a spun bearing. Are there any other ideas on what this could be?
So much for TXMC Houston.
#8
I have a horrible clanking noise coming from the front of the motor that I thought was a lifter, then pulled the valve cover and everything looks good with no metal and no strange wear. When tuning the crank by hand I hear/feel a tick on the crank rpm, not the valve train.
I'm going to go ahead and buy expensive feelers and check the valves, but I fear bottom end disaster like a spun bearing. Are there any other ideas on what this could be?
So much for TXMC Houston.
I'm going to go ahead and buy expensive feelers and check the valves, but I fear bottom end disaster like a spun bearing. Are there any other ideas on what this could be?
So much for TXMC Houston.
#10
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I had a similar hard to find noise. One of the small bolts on the crank pulley had sheared off and others were loose.
Your problem sounds more serious since you feel it when manually rotating the crank. :(
Your problem sounds more serious since you feel it when manually rotating the crank. :(
#15
I had a similar problem. I could hear it sorta make a wierd noise when manually rotating by wrench. Mine ended up being a spun bearing. It was a super terrible noise even at idle. I thought for sure it was comming from the valve cover so i took that off... Found nothing. So i pulled the motor for the second time and sure enough as soon as i pulled the oil pan and all the caps... one of my rod bearings were toast. Easy way to tell... drain your oil and look for a golden metallic shimmer. At least that was the color i saw when mine spun.
#20
Tour de Franzia
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Valve springs are fine but get this, and its confirmed by Kotomile...it looks like the intake cam is jumping on the back side of the lobe when I rotate by hand and pops. We put a little torque on the cap and could no recreate the symptom, but it was crazy looking.
I'm going to buy feelers, check record each measurement, retorque, and crank the car to see what happens tomorrow.
I'm going to buy feelers, check record each measurement, retorque, and crank the car to see what happens tomorrow.