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Joined: Jun 2005
Posts: 934
ChatMaster - 750
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ChatMaster - 750
Joined: Jun 2005
Posts: 934 |
K10, I have never heard of drilling a hole in your t-stat. I wonder why they don't make them with a whole already in them. I think I would fill the block up with anti freeze and then install the T-stat...Oscar :confused: :confused:
OSCAR ALBRETSEN
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
I wonder why they don't make them with a whole already in them. They do. It probably depends upon the application. On the thermostats for our '68 and '69 for example, they come with the relief hole already drilled in the flange.  :) :grin:
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Jun 2005
Posts: 934
ChatMaster - 750
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ChatMaster - 750
Joined: Jun 2005
Posts: 934 |
Cool JYD, I never noticed, probably because I was always looking for the arrow that goes toward the block when I install it. Thanks for the lesson everyone...Oscar  :cool2:
OSCAR ALBRETSEN
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
Posts: 6,149 Likes: 42 |
By drilling a bleed hole in the tstat you reduce the possibility of airlocks on refilling the system but it also allows an extra bypass increasing warm up time and can reduce running temp in cooler weather.
Some tstats are made with a small valve that allows air to pass but when the engine is running the coolant flow holds it shut. These are not always available as a retro fit unless original design.
Tony
1938 1/2 ton Hope to drive it before I retire
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