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Old 01-26-2016, 02:46 AM   #1
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Need advice/help asap. Broken valve bolt.

I really need a answer in the next six hours.. (when im leaving for the jy.)

So today i was workin on my girls 05 2.0L duratec and everything was going very smoothly untill i started the valve cov. It came off, two of bolts fell out on their own and the gasket came out easily. I put the new gasket in, cleaned thr mating surface, and began bolting it back into the car. I startwd with the middle bolt, and went to the center passenger side bolt second. (one inside plug valley not border.) the 1st bolt torqued down and took quite a few rotations beyond snug to actually mske my in. Lb wrench to "click". But it did.
The second, acted the same as the first and turned and turned and turned, and then it snapped. Luckily i can see a lot of the bolt without removing the valve cover so i know i can rempvr the stud without more issues. But leads me to my problem and question.
Ive searched and searched the web for my answer without an answer :(
1. Ford said new bolts only serviceable with a new VC (120$) kiss my ass.
2. Vatozone (my work), o'crylies, and carqwaust all say cant get...
3. Does anyone know if a hardware store bolt or a specility bolt store will be able to supply me with an exact duplicate?
4. Can i go to the JY and remove the bolts from a duratec VC? I noticed when two fell out when changin the gasket that the holes have the balls which is what locks them in. But i am able to remove them by gently pressing down and turnin as if im tightening them.
Can i punch/push them out, or press from bottom and turn to the left as if im loosing them.
5. The torque is 89 in lbs correct? According to my chilition....
6. Whu did the two bolts i tightened spin and spin ans spin? Should i retap the bolt holes to be safe ??
I thught about using my zx3's extra vc bolts but their bigger :b woulda been too easy......


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Old 01-26-2016, 06:30 AM   #2
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Get the bolts from a junkyard. No parts store bolt will be an exact match and do the job right. I just use a 1/4 inch ratchet and snug them up
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Old 01-26-2016, 02:00 PM   #3
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Click type torque wrenches make this easier to happen than indicator type, but it can happen with any. The click type won't click unless the bolt pulls up solidly against resistance, and the indicator type will not register much added torque in the same situation.

Inch pound torque numbers for small bolts are often near yield values for the bolt or threaded hole, so if they don't draw up firmly to the suggested torque it's time to stop turning them and investigate the cause.

For both the broken bolt and the one that didn't draw up normally it sounds like they were yielding from not being strong enough for the torque value. Possibly over torqued before but could just be aged or otherwise not up to spec.. Spec. itself could be too high for the circumstances, well lubricated bolts take less torque to reach a breaking point than dry.

Check the threads of the holes for condition, then when using new bolts follow puffingonj's advice to snug them up firmly without being quite so concerned about reaching a specified torque value (could be too high for the circumstances).

One added hint is to torque items like this in stages, from finger tight to snug to final torque. Going straight to a final torque value for each bolt puts too much strain on the individual bolt since they ALL need to be torqued evenly to hold the item squarely in position. (can't draw down the whole cover with one bolt)
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Old 01-26-2016, 08:15 PM   #4
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Bolts overtightened like most of these are. Lower your torque to say 70, but I never use a torque wrench at all. Simply go down to the hit and then a bit more, spinning and spinning means you went WAY too far.

People just can't get that you are no longer squeezing a gasket to 'crush' it any longer, they have squeezed flat by the time the parts have pulled up solid and nothing you do past that increases the seal, in fact makes it worse.
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Fix the driver first, then fixing the car becomes so much easier..........
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Old 01-27-2016, 04:51 PM   #5
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I have used valve covers available. the bolts ownt need to be vehicle specific LMAO
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