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Drill the thermostat or not? #1497354 09/06/13 08:03 PM 09/06/13 08:03 PM
Joined: Jan 2011 Posts: 61 Minnesota M Mad Accountant OP member
Mad Accountant OP member M Joined: Jan 2011 Posts: 61 Minnesota	Installing a new thermostat, and wondering if i should drill a small hole in it or not. If so, why and how big? If not, why not? Go!

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497355 09/06/13 08:08 PM 09/06/13 08:08 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	A small hole about 1/16 will aid in removing any air pockets.. I am truckless..

Re: Drill the thermostat or not? [Re: 340SHORTY] #1497356 09/06/13 08:18 PM 09/06/13 08:18 PM
Joined: Jan 2003 Posts: 32,916 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,916 Grand Prairie,Texas	Most new stats have a air relief already.

Re: Drill the thermostat or not? [Re: stumpy] #1497357 09/06/13 08:21 PM 09/06/13 08:21 PM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	Quote: Most new stats have a air relief already. Correct. Very few do not. Steve Someday I'll have another C-body.

Re: Drill the thermostat or not? [Re: SteveS] #1497358 09/06/13 11:14 PM 09/06/13 11:14 PM
Joined: Jun 2005 Posts: 4,041 michigan woods imfixinmopars426 master
imfixinmopars426 master Joined: Jun 2005 Posts: 4,041 michigan woods	yes...1/16-1/8" will help greatly for filling!

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497359 09/06/13 11:20 PM 09/06/13 11:20 PM
Joined: Jan 2005 Posts: 4,404 Michigan MarkZ Worthy
MarkZ Worthy Joined: Jan 2005 Posts: 4,404 Michigan	Quote: Installing a new thermostat, and wondering if i should drill a small hole in it or not. If so, why and how big? If not, why not? Go! I drilled an 1/8" hole in mine. No more need to burp the system on fill up. 1987 Fifth Avenue - 512/518/D60

Re: Drill the thermostat or not? [Re: SteveS] #1497360 09/07/13 05:04 PM 09/07/13 05:04 PM
Joined: Jan 2011 Posts: 61 Minnesota M Mad Accountant OP member
Mad Accountant OP member M Joined: Jan 2011 Posts: 61 Minnesota	How do you tell if the tstat has an air relief? There is no visible hole, and i can't force air through it at least by mouth.

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497361 09/07/13 05:14 PM 09/07/13 05:14 PM
Joined: Jan 2003 Posts: 32,916 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,916 Grand Prairie,Texas	If there is no hole then it doesn't have a relief.

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497362 09/07/13 05:32 PM 09/07/13 05:32 PM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	What thermostat is it? Most are vented via a not very obvious notch in the valve. Steve Someday I'll have another C-body.

Re: Drill the thermostat or not? [Re: SteveS] #1497363 09/07/13 05:51 PM 09/07/13 05:51 PM
Joined: May 2005 Posts: 4,705 Florida BDW master
BDW master Joined: May 2005 Posts: 4,705 Florida	Any harm in drilling a 1/8" hole if it already has one?

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497364 09/07/13 07:26 PM 09/07/13 07:26 PM
Joined: Aug 2011 Posts: 1,028 NB, Canada M moparfan53 super stock
moparfan53 super stock M Joined: Aug 2011 Posts: 1,028 NB, Canada	Some info from the Stant website; "Many thermostats have a �jiggle pin� or �check valve� that allows trapped air in the cooling system to pass through the thermostat and be released from the system. If a Stant thermostat does not have a jiggle pin, it will have a "bleed notch� or other method of removing air from the system." http://www.stant.com/consumer-products/abcs-of-thermostats

Re: Drill the thermostat or not? [Re: moparfan53] #1497365 09/08/13 12:29 AM 09/08/13 12:29 AM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	Quote: Some info from the Stant website; "Many thermostats have a �jiggle pin� or �check valve� that allows trapped air in the cooling system to pass through the thermostat and be released from the system. If a Stant thermostat does not have a jiggle pin, it will have a "bleed notch� or other method of removing air from the system." http://www.stant.com/consumer-products/abcs-of-thermostats FYI- I spent a few years as product engineering manager for Stant's thermostat group. Steve Someday I'll have another C-body.

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497366 09/08/13 12:54 AM 09/08/13 12:54 AM
Joined: Jan 2003 Posts: 1,754 Windsor, ON, Canada D Diplomat360 top fuel
Diplomat360 top fuel D Joined: Jan 2003 Posts: 1,754 Windsor, ON, Canada	Yup, drill a hole...I thin I tossed a 1/8" into mine...regardless of how much water is lets pass through..nothing beats knowing that all the air has been expelled!

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497367 09/08/13 03:02 AM 09/08/13 03:02 AM
Joined: Aug 2003 Posts: 43,114 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,114 Bend,OR USA	I drill two or three 1/8 inch holes across from each other in all of the new ones, old motorhome style, thermostasts I use Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Drill the thermostat or not? [Re: SteveS] #1497368 09/08/13 07:43 AM 09/08/13 07:43 AM
Joined: Jan 2006 Posts: 8,162 USA 3 360view Moparts resident spammer
360view Moparts resident spammer 3 Joined: Jan 2006 Posts: 8,162 USA	Quote: FYI- I spent a few years as product engineering manager for Stant's thermostat group. Would you remember any thermostats with set points above 205 degrees F ? 210, 214 or even 220 degrees F maybe? a few years ago i searched through the Stant paper catalog looking for high temperature thermostats and found the Stant Standard Grade #13352 rated 205 F and installed this in a 1995 Magnum 360 V8. This Stant crosses to a CarQuest #30210 205 degrees F

Re: Drill the thermostat or not? [Re: 360view] #1497369 09/08/13 09:44 AM 09/08/13 09:44 AM
Joined: Nov 2009 Posts: 2,177 ill D dennismopar73 top fuel
dennismopar73 top fuel D Joined: Nov 2009 Posts: 2,177 ill	My race motors I just run a spacer to just restrict the flow, in my street stuff I drill a 1/4 hole I alwas buy the safe stats that way if thego bad they stick wide open, not closed !

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497370 09/08/13 10:07 AM 09/08/13 10:07 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Quote: How do you tell if the tstat has an air relief? There is no visible hole, and i can't force air through it at least by mouth. I'm having a heck of a time imagining that. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: Drill the thermostat or not? [Re: 360view] #1497371 09/08/13 06:48 PM 09/08/13 06:48 PM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	Quote: Quote: FYI- I spent a few years as product engineering manager for Stant's thermostat group. Would you remember any thermostats with set points above 205 degrees F ? 210, 214 or even 220 degrees F maybe? a few years ago i searched through the Stant paper catalog looking for high temperature thermostats and found the Stant Standard Grade #13352 rated 205 F and installed this in a 1995 Magnum 360 V8. This Stant crosses to a CarQuest #30210 205 degrees F That's the only "mainstream" one. Ten years ago I could have made something for you! Steve Someday I'll have another C-body.

Re: Drill the thermostat or not? [Re: BDW] #1497372 09/12/13 01:24 PM 09/12/13 01:24 PM
Joined: Jan 2003 Posts: 5,788 Hamilton, Ontario Canada Magnum master
Magnum master Joined: Jan 2003 Posts: 5,788 Hamilton, Ontario Canada	Quote: Any harm in drilling a 1/8" hole if it already has one? The difference between a drilled hole and a one have valve is no flow during warm up. That is why out of the box thermostats do not have a hole. It may be more of a chore to rid of air after the initial fill but after a couple cycles the air will find it's way to the radiator cap or coolant reservoir. One vote here for faster warm up. 69 Super Bee, 93 Mustang LX, 04 Allure Super

Re: Drill the thermostat or not? [Re: Magnum] #1497373 09/12/13 06:44 PM 09/12/13 06:44 PM
Joined: Feb 2006 Posts: 2,262 Groveland, MA SteveS top fuel
SteveS top fuel Joined: Feb 2006 Posts: 2,262 Groveland, MA	If anyone is that nervous about an air pocket on initial fill, they can push the thermostat open and wedge an aspirin in the opening. The thermostat will stay open a little bit until the coolant dissolves it, or the thermostat opens and spits it out. Steve Someday I'll have another C-body.

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497374 09/12/13 08:53 PM 09/12/13 08:53 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	My vote, a 1/32" hole. Takes 1 minute to do. No effect on cooling. As said quicker/more complete initial fill. Time is money live every 24 hour block of time like it's your last day on earth

Re: Drill the thermostat or not? [Re: RapidRobert] #1497375 09/12/13 10:58 PM 09/12/13 10:58 PM
Joined: Jan 2011 Posts: 61 Minnesota M Mad Accountant OP member
Mad Accountant OP member M Joined: Jan 2011 Posts: 61 Minnesota	Drilled a 1/16" hole, filled it and ran it. Worked great without having to check it 12 times. Love the aspirin trick, sort of like the bread in the copper pipe at home. You learn something new every dang day!

Re: Drill the thermostat or not? [Re: Mad Accountant] #1497376 09/13/13 04:12 AM 09/13/13 04:12 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Love the aspirin trick, sort of like the bread in the copper pipe at home. You learn something new every dang day! Yeah I liked that too now what is the bread in the copper pipe trick live every 24 hour block of time like it's your last day on earth

Re: Drill the thermostat or not? [Re: RapidRobert] #1497377 09/13/13 05:04 AM 09/13/13 05:04 AM
Joined: Aug 2003 Posts: 6,301 colorado A a12superbee master
a12superbee master A Joined: Aug 2003 Posts: 6,301 colorado	Quote: Quote: Love the aspirin trick, sort of like the bread in the copper pipe at home. You learn something new every dang day! Yeah I liked that too now what is the bread in the copper pipe trick If you're sweating together copper pipes and there is a little water trickle, you can shove bread in the pipe to hold back/suck up the water long enough to get the pipes soldered together. The bread will dissolve when you turn the water back on. I can't afford this. mark

Re: Drill the thermostat or not? [Re: a12superbee] #1497378 09/13/13 05:10 AM 09/13/13 05:10 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	alright live every 24 hour block of time like it's your last day on earth

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