We tried to replace the thermostat in our 1995 Escort LX Wagon.
Unfortunately the head of one of the bolts (top) holding the thermostat
housing to the cylinder head broke off. We tried to drill it out but the
drill broke too. Now we cannot do a thing other than take the car to a
garage to get fixed. Does anyone has an idea how can they fix this and how
much will it cost?
Thanks a lot for your reply.
Most people will use an easy-out. You drill a smaller hole in the bolt, and
the easy-out goes in that hole. An easy-out is kind of like a reverse drill
bit. It grips whats left of the bolt after it has been drilled out. They
could possibly go through a couple of bits removing it.
If that does not work, they will drill out the whole thing including the
threads, tap new threads in for an oversize bolt, open up the hole of the
t-stat housing and put a larger bolt in.
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