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New member - Problems with heater control valve

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

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lummert
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Year and Model: 760 1988
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lummert

Re: New member - Problems with heater control valve

Post by lummert » Sun Apr 24, 2016 7:37 pm

Autozone: Everco/Heater Control Valve 74828 $16.99

O'reilly Auto Parts 74828 $16.99
1988 Volvo 760 Turbo Wagon

seanj
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seanj

Re: New member - Problems with heater control valve

Post by seanj » Sun Apr 24, 2016 7:43 pm

Drat - it's out of stock at NAPA. I will it off Amazon, no big deal.
Just would like to know what others think on 90 degree elbow?

Also, if I don't pinch the hoses or drain the coolant - how much will flow out? Can I just catch it in a milk jug? Will any flow out of the right side hose (passenger side) since I am assuming if I drain the driver's side hose - then the heater core loop should be in theory out of coolant?

lummert
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Re: New member - Problems with heater control valve

Post by lummert » Sun Apr 24, 2016 10:11 pm

Maybe you can fit one of those square dish washing pans (size that fits in kitchen sink) under the valve to drain the heater core and hoses.
1988 Volvo 760 Turbo Wagon

seanj
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seanj

Re: New member - Problems with heater control valve

Post by seanj » Mon Apr 25, 2016 5:44 pm

Sweet. Thats what I am going to do. Now need to get that 90 degree hose and a brass fitment so that I can get everything in the car once the rain stops.

lummert
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Re: New member - Problems with heater control valve

Post by lummert » Mon Apr 25, 2016 7:07 pm

What? It's raining in Michigan?
1988 Volvo 760 Turbo Wagon

seanj
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seanj

Re: New member - Problems with heater control valve

Post by seanj » Tue Apr 26, 2016 10:15 am

Yeah, thunderstorms yesterday - and its drizzling & foggy today. Waiting for ground to dry up.

In the meantime, I plan to go to Advance auto and ask them for a 90 coolant hose and a brass fitting...

seanj
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seanj

Re: New member - Problems with heater control valve

Post by seanj » Fri Apr 29, 2016 7:03 pm

Done!! It was definitely the heater control valve.

So I got the Four Seasons 74828 heater control valve, a 5/8" ID coolant hose and a straight brass fitting from Advance Auto. Took me about 2 hours to get it in. Need to put back the carpeting and seats and such...overall very satisfied and it is a lot more sturdier than the plastic valve that was in there.

Pictures and part numbers to follow in the next couple of days....

seanj
Posts: 23
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seanj

Re: New member - Problems with heater control valve

Post by seanj » Sat Apr 30, 2016 12:10 pm

As mentioned,

Here are some pictures of the new set up. Quite pleased with it. No leaks and I managed to have full adjustment sweep on the slider.
The slider cable was bear though to twist and put in a loop around the valve.

Parts list:
1. Heater control valve: Four Seasons Valve 74828 ($15.04 on Amazon)
2. Heater Hose connection - brass fitting: DA 19590178 ($2.99 at Advance Auto)
3. Heater hose molded: p/n#5197066 from Dayco ($11.09 at Advance Auto)
4. Hose clamps - 2 nos : ATO 5600456 ($2.49 at Advance Auto)

Total parts cost: $31.61
Total hours: 2.5 hours. Could probably have been done a little quicker...
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