I can not get one of the screws of the engine shield cover to open it will just keep spinning I think the screw clip on the other side is rusted on the screw threads any ideas how to get it to unscrew I tired pulling the shield and other cover its screwed to apart while trying to unscrew did not work I tired for one 1 hour! nothing worked

I will try cutting the screw off with a bolt cutter

 

You need this while you unscrew the clip. Or if you don't have any, a small screw driver will do

 

My engine cover is just held on with rubber grommets? Pull up and they release?
Maybe I don't understand which cover your talking about?
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splash shield cover on the bottom

 

its too rusted the screw will only become harder to turn simply cutting it off is best

 

Sorry I was thinking of the wrong thing.
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anyone know the part number for the 10mm bolts? they are all rusted

 

Go buy some stainless steel bolts and spray them with Boeshield and install them for the next time you want to get that cover off.