Debris Entering Crankcase
#12
#13
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#14
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First Pic is the piece after I pulled it out. It was right in the corner buried where the oil cap is.. I didn't take a picture of it opened up. But I think it would have been fine living wedged where it was the rest of its life. However, im happy it is out as you can see its quite large. 40 caliber bullet for reference, it's pretty much the entire cap seal.
The other pics are of the broken fastener bolt. Now the car is down for a while but I'm happy the initial and hidden problem is solved. A broken bolt is visible and won't keep me up at night wondering what could happen.
#15
Cool! Replacing the valve cover bolt is much less headache, than finding a loose foil in the crank area.
#17
This chart may help from snapping bolts in the future. The valve cover is held by 6 x 12 bolts. 6mm in diameter and prolly no greater than Class 8.8. So per chart, I wouldn't go above 8 ft-lbs of torque --- with a clean & un-stretched bolt into a clean nut or threaded surface.
http://www.fastenal.com/content/feds...0Fasteners.pdf
http://www.fastenal.com/content/feds...0Fasteners.pdf
#18
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Nice chart
I'm going to replace that whole assembly rather than use a drill & tap.
Getting the oem torque spec for the flute/bolt piece on Tuesday when I can go get the two pieces.
I'm going to replace that whole assembly rather than use a drill & tap.
Getting the oem torque spec for the flute/bolt piece on Tuesday when I can go get the two pieces.
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IntegraR0064
S2000 Under The Hood
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06-16-2015 08:07 AM