Replacing the water pump on an 86 NA two of the bolts broke off. I got one out , but had to drill the other. Is it better to use a heli coil, or just tap the hole for a bigger bolt? This bolt is the inside/top bolton the water inlet.

 

I would actually use a time sert, it will hold much better. Keep the size the same.

 

That seems to be best, I see a distributer in Texas, but not exactly clear how to order a kit. Is there some where on-line to get these. I am in Oklahoma City, but dont see any local vendors. Where do you buy them?