Thermostat housing bolts replacement

Tiny
TJ NAYLOR
  • MEMBER
  • 1991 FORD ESCORT
  • 1.9L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 800,000 MILES
So I need to replace my thermostat its stuck open, but before I start operation thermostat I need to get myself prepared for broken housing bolts, But I do not know the size of bolts I will need to purchase. Autozone cannot help me until I actually brake it and extract the bolt stub so we can match the bolt pattern.
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Sunday, December 18th, 2016 AT 12:00 AM

3 Replies

Tiny
STEVE W.
  • EXPERT
I did not find any information as to the size of the bolts. But most makers use common sizes with common head sizes as it saves money and assembly time.

So a common 1/4" bolt takes a 7/16 or 3/8" wrench
5/16" uses a 1/2" wrench
3/8" uses a 9/16" wrench

Metric is somewhat similar but they do have a few extra "standards" so if you go and put a socket on the bolts in question, that same socket should fit the replacement bolts.
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Sunday, December 18th, 2016 AT 1:13 PM
Tiny
TJ NAYLOR
  • MEMBER
Yes it was a success but now I have worse problems now I have no spark and the tacometer just sits when I try to start it and no engine light eather but I get fuel so I replaced my ignition coil pack and nothing I replaced the crank shaft position sensor and nothing then I replaced the ignition module and nothing so I check the to the connection to the ignition module to see if I'm getting power to it and nothing I did get power with the ignition + prong and I got 0.12 volts so maybe its the cce power relay next to the fuel pump relay
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Monday, February 6th, 2017 AT 8:59 PM
Tiny
STEVE W.
  • EXPERT
Please ask this as a new question. That will let more people see it. When you add it to your original it sort of gets buried on the site.
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Tuesday, February 7th, 2017 AT 1:29 AM

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