Home » Public Forums » GMCnet » Replacing thermostat - how much coolant to drain?
 Replacing thermostat - how much coolant to drain? [message #225632] |
Mon, 14 October 2013 15:25  |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
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Anyone know off the top of their head how much coolant I need to drain before replacing the thermostat without causing a flood?
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: [GMCnet] Replacing thermostat - how much coolant to drain? [message #225649 is a reply to message #225643] |
Mon, 14 October 2013 17:18  |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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| powwerjon wrote on Mon, 14 October 2013 16:45 |
Seems to me that it was just over a QT when I replaced the gasket last fall.
J.R. Wright
30' Buskirk Stretch
Michigan
On Oct 14, 2013, at 4:25 PM, David Orders <dao@oarsllc.com> wrote:
>
>
> Anyone know off the top of their head how much coolant I need to drain before replacing the thermostat without causing a flood?
> --
> 1976 Royale "Twinkie II", 1978 Palm Beach with front end fire. Lynnwood WA
>
> “Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.”
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A quart? Come on now.  Unless you run yours low, like Jim K does, you will flood the engine intake by only draining a quart. I drained a gallon and still had it running everywhere last time I swapped thermostats. Like Jim K just said above, a gallon and a half, at least.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: [GMCnet] Replacing thermostat - how much coolant to drain? [message #225780 is a reply to message #225649] |
Tue, 15 October 2013 19:11 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
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FYI drained 2 gallons and the thermostat was dry. It also appeared to be stock, and not working. It was stamped 195 and even though I boiled it for nearly 10 minutes it never opened. The 6" hose from the thermostat housing to the water pump was like uncooked pasta. It wasn't leaking, but it crumbled in my hands.
Anyone working on these motorhomes should consider getting this set of hose removal tools. They are incredible. They make removing old, hard hoses in hard to reach places easy.
http://www.amazon.com/gp/product/B0079GPYR2/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: [GMCnet] Replacing thermostat - how much coolant to drain? [message #225786 is a reply to message #225780] |
Tue, 15 October 2013 19:20 |
Wayne Newland
Messages: 75
Registered: February 2004
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I have used one like the second from right for many years, including last
Friday on a Mercruiser.
Wayne Newland F9300 75 Palm Beach Sebastian, FL
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of David Orders
Sent: Tuesday, October 15, 2013 8:11 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Replacing thermostat - how much coolant to drain?
FYI drained 2 gallons and the thermostat was dry. It also appeared to be
stock, and not working. It was stamped 195 and even though I boiled it for
nearly 10 minutes it never opened. The 6" hose from the thermostat housing
to the water pump was like uncooked pasta. It wasn't leaking, but it
crumbled in my hands.
Anyone working on these motorhomes should consider getting this set of hose
removal tools. They are incredible. They make removing old, hard hoses in
hard to reach places easy.
http://www.amazon.com/gp/product/B0079GPYR2/ref=oh_details_o03_s00_i00?ie=UT
F8&psc=1
--
1976 Royale "Twinkie II", 1978 Palm Beach with front end fire. Lynnwood WA
“Before you criticize someone, you should walk a mile in their shoes.
That way when you criticize them, you are a mile away from them and you have
their shoes.” _______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
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