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Author Topic: 1977 Pinto V6 T-stat  (Read 2512 times)

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Offline totljeep

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1977 Pinto V6 T-stat
« on: October 04, 2013, 03:56:54 PM »
Can someone please tell me how to find and change the thermostat on this '77 w/2.8 V6. It's running hot so I'm gonna start there. Thanx a heap..
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Offline jeremysdad

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Re: 1977 Pinto V6 T-stat
« Reply #1 on: October 05, 2013, 12:47:12 PM »
On the v6, I believe they're located at the bottom front of the motor.

Here's a link with info: http://www.fordpinto.com/general-pinto-talk/running-warm/msg27994/#msg27994
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Offline flash041

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Re: 1977 Pinto V6 T-stat
« Reply #2 on: October 05, 2013, 01:55:21 PM »
The thermostat is at the lower radiator hose. The housing is located in front of the water pump. There are three 10mm headed bolts holding it on. They thread into a 90 degree bypass nipple behind the timing cover.You will need a new thermostat, flat rubber gasket, housing gasket, nipple gasket. Its a bit tricky getting it all in place to bolt together.You said its running hot. How hot? I have had mine since new and it most always runs at the high end of normal on the factory gauge. 
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Offline totljeep

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Re: 1977 Pinto V6 T-stat
« Reply #3 on: October 05, 2013, 09:29:07 PM »
Quote from: flash041 on October 05, 2013, 01:55:21 PM
The thermostat is at the lower radiator hose. The housing is located in front of the water pump. There are three 10mm headed bolts holding it on. They thread into a 90 degree bypass nipple behind the timing cover.You will need a new thermostat, flat rubber gasket, housing gasket, nipple gasket. Its a bit tricky getting it all in place to bolt together.You said its running hot. How hot? I have had mine since new and it most always runs at the high end of normal on the factory gauge. 
I don't have a temp gauge so I don't know exactly how hot but the coolant is boiling through the hose at the cap so I also installed a new rad cap.
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Offline bbobcat75

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Re: 1977 Pinto V6 T-stat
« Reply #4 on: October 06, 2013, 08:10:12 AM »
Had to replace my fan to get my b6 to run cooler, can run a/c on hot fl days or it gets to hot for me to be ok with sure the car would be ok but don't want to blow motor! Good luck n hope u fund your over hearing issue
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Offline totljeep

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Re: 1977 Pinto V6 T-stat
« Reply #5 on: October 07, 2013, 08:52:37 PM »
What is the purpose of the small hose to the T-Stat housing? There is no opening for coolant to flow. Anyone know?
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Offline flash041

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Re: 1977 Pinto V6 T-stat
« Reply #6 on: October 07, 2013, 09:29:53 PM »
The small hose ,5/8 dia, is the heater hose. dont know what you mean by" no opening for coolant to flow" unless it is corroded shut.
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Offline jeremysdad

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Re: 1977 Pinto V6 T-stat
« Reply #7 on: October 08, 2013, 09:16:09 AM »
You'll want to clear that hose fitting out. Could be part of your issue. You might want to check all your other connections for clogs, and then run a couple cycles of 'Super Cooling System Flush' through it. Sounds like it may have been neglected by a PO at some point.

Good luck!
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Offline totljeep

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Re: 1977 Pinto V6 T-stat
« Reply #8 on: October 09, 2013, 11:39:40 AM »
I'm pretty sure a head gasket is the problem. Will a 2.8 from a 1984 Ranger swap in place or is there any difference?
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