Thermostat housing bolts

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Thermostat housing bolts


Post by ah923 » 04 Mar 2018, 14:04

So after finally replacing the heater core in the '68 Cougar, with AC, I decided it would be nice to check if the car had a thermostat. I bought the car from an Arizona owner and she has always run cool.
I was aware that these bolts can be problematic so I soaked them with Kraoil for a few days. Well, both snapped without much effort. I was able to get the top remains out but the lower is not giving up. Outside of removing the manifold to drill and tap the sucker, what ideas are out there. I see no way to drill it out with the manifold on the car, I have tried heating it with a pencil torch, I have tried Kraoil and CR freeze. The big hammer is still locked in the tool box. TIA

'68 XR7 and a bunch of non Ford/Mercury
This is my hobby, I AM having fun

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Re: Thermostat housing bolts


Post by ssava » 04 Mar 2018, 19:17

Ran into this in January. Unfortunately I had to replace the intake manifold.


That being said. It actually wasn't that hard.
'67 Cougar XR7 purchased September, 2017 to work on with my twin (14) year old boys
Franklin, TN

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Re: Thermostat housing bolts


Post by Royce » 04 Mar 2018, 20:28

I have had no problem drilling and tapping them on the car. They snap off regularly on me.
1968 GT-E XR-7 W code 427 Augusta Green / Saddle
1968 XR-7 R code 428CJ Ram Air Red / Black
1910 Model T Ford Touring Red / Black
1914 Model T Touring Maroon / Black
1915 Model T Ford Touring Black / Black
1917 Model T Ford Torpedo Runabout Green / Black
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