1969 replacement heater valve

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nismou20
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1969 replacement heater valve

Post by nismou20 »

I recall someone sometime ago mentioned a more cost efficient alternative valve that could be retrofitted to our cars. That time has come to me to replace this item if I can not rebuild it. I haven’t taken it apart yet but it’s leaking and looks all green and crusty. Any suggestions along these lines would be appreciated.
2004 Chevy Tracker
2010 RAV4
1969 Datsun Roadster
2005 Lotus Elise
1995 Toyota Tercel (Poormans Corolla)
2001 Fleetwood Jamboree RV
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dynaguy
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Re: 1969 replacement heater valve

Post by dynaguy »

I’ve rebuilt a few. If you can get it apart, it’s fairly easy to get them fully functional again. Pat
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FergO2k
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Re: 1969 replacement heater valve

Post by FergO2k »

I think it was the 620 truck version that was similarly sized, and since the heater core to valve hose is the one that has to jump in sizes (like 9/16 ID on one end and 3/4 ID on the other (??) this non-visual swap is an option. Pretty sure it was 620 and not 720.
Mine is in similar condition.
Fergus O
69 2L, SUs (driver, not susceptible to polish)
02 Tacoma 4 door (sold at 300k miles!)
2017 Honda Ridgeline (2021 purchase)
Los Alamitos, CA
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nismou20
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Re: 1969 replacement heater valve

Post by nismou20 »

Got lucky I had a Oring lying around. Once the bracket gets separated from valve body the stem area pops off. About a 1inch sized Flat sided Oring resides inside. I replaced with a Standard rounded Oring with some thick grease. Checked for leaks and it’s good. Forgot to take pics of during!
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2004 Chevy Tracker
2010 RAV4
1969 Datsun Roadster
2005 Lotus Elise
1995 Toyota Tercel (Poormans Corolla)
2001 Fleetwood Jamboree RV