Alcatraz Posted March 24, 2017 Share Posted March 24, 2017 Getting my van ready for a summer trip and found a broken thermostat housing bolt. Drill and easy out ? Or have they invented an easier way? Unfortunately its broken in side the aluminum manifold were I can not reach to turn it with vice grips. Quote Link to comment Share on other sites More sharing options...
Administrators Moses Ludel Posted March 24, 2017 Administrators Share Posted March 24, 2017 Alcatraz...This would be time for drills and an easy out. Be smack on center with the first/smaller drill bit. Use successively larger drill bits with grease on each one to help prevent filings from dropping into the cooling system if you're drilling all the way through. Leave just enough margin so that the easy out will not chew up the aluminum threads. If the corrosion extends into the threads, there are a couple of repairs, the best though more costly method is use of Time-Sert® inserts, stainless steel in this case. Then there's the common Heli-Coil fix that might be good enough to hold a thermostat housing in place...I just did a video on a Time-Sert® repair/upgrade of aluminum threads; a review of that video may prove useful: http://www.4wdmechanix.com/how-to-time-sert-aluminum-thread-repair-and-upgrade/. Moses Quote Link to comment Share on other sites More sharing options...
Alcatraz Posted March 24, 2017 Author Share Posted March 24, 2017 Thanks Moses. I was hoping for something easier but have started the radiator removal for more space, easier access, Quote Link to comment Share on other sites More sharing options...
Administrators Moses Ludel Posted March 24, 2017 Administrators Share Posted March 24, 2017 Ugh...You're on the right track...Still easier than an intake manifold removal. Maybe the radiator can be professionally rodded and tested at the same time, making the best of the situation? Moses Quote Link to comment Share on other sites More sharing options...
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