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| | | Forums66 Topics128,107 Posts1,056,225 Members48,436 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | Wanting to install a shut off valve in the heater hose for the summer, believe the hose to the water pump is correct location But also after having a couple old heater cores give up the ghost at the worst possible time, I'm thinking of putting a shut off valve in each heater hose! Good idea or not? | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 |
Save a life, adopt a senior shelter pet. The three main causes of blindness: Cataracts, Politics, Religion. Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | Ok Tiny thanks glad I asked. But still may go with two valves. | | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | Take the hose that goes from the water pump to the heater off at the heater. Take the hose that goes from the heater off at the block. Put the waterpump hose on to the block fitting and the block hose onto the other heater connection. Reverse the procedure in the fall. | | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | K Jim I've done that in the past, thinking the valve will be less hassle? | | | | | Joined: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | I used a single valve on mine, it has 4 hose fittings on it so, it will bypass your heater core. It is vacuum operated so it is easy to turn on or off. We get plenty warm in the summer during the day but sometimes it is a bit chilly in the morning or evening an a bit of heat is nice. Or if it rains and I want the heat on for the defroster.
Napa 660-1294
| | | | | Joined: Mar 2013 Posts: 186 'Bolter | | 'Bolter Joined: Mar 2013 Posts: 186 | I use a single shutoff as well. No need for dual vlavles if the first one is installed on the pressure side. Coolant won't reverse flow . All vehicles that have a shutoff only use one. I have a small leak in my heater core and it doesn't leak with the valve closed. If that helps.. | | |
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