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Username Post: heater box stil hot        (Topic#363378)
french-chevy 
Newbie
Posts: 4

Age: 54
Loc: France
Reg: 11-22-20
11-22-20 10:05 AM - Post#2808333    

hello everyone, this is my first post,i'm from France sorry for the spelling mistakes.i changed the heater valve on my impala 1962,i noticed heater box is stil hot inside the firewall even valve closed.its a problem in summer with the A/C cool pack.valve close corectly,i placed "H" connector on heater hoses too. should i put hand shut off on hoses?.how do you process folk living in desert state?. thank for answer. Christian



 


dcairns 
Frequent Contributor
Posts: 2186
dcairns
Loc: Orange CA
Reg: 11-07-03
11-22-20 02:55 PM - Post#2808355    
    In response to french-chevy

This is a great question. I have factory AC and have wondered the same thing. On the factory AC, flaps in the ducting are supposed to keep the heat from the heater core form getting into the air stream, but I never thought the flaps were all that well sealed.

- Dave
1964 Impala 4-door sedan



Edited by dcairns on 11-22-20 07:41 PM. Reason for edit: No reason given.

 
pvs409 
"8th Year" Gold Supporting Member
Posts: 3056
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
11-22-20 05:24 PM - Post#2808362    
    In response to french-chevy

62 Chevys with the heater valve mounted on top of the black painted firewall duct under the hood are famous for not shutting off even though they appear to be shut off.

Try readjusting the cable after removing the cable and pushing the arm on top of the valve to make sure it’s off.

I have had to disconnect the heater in the summer since the valve would not shut off completely.

If you still get heat, the valve may need to be replaced ( try the check on adjustment I suggested).

Paul

57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
http://paulstensland.com


 
french-chevy 
Newbie
Posts: 4

Age: 54
Loc: France
Reg: 11-22-20
11-23-20 11:45 AM - Post#2808419    
    In response to pvs409

hello Paul,i changed the valve with a new and yes the lever is full close position. are there some impala 1962's owner experience to share about this exessive temperature?. this weekend i'll check the valve. thank for information. Christian



 
55Brodie 
Contributor
Posts: 334
55Brodie
Age: 68
Loc: Little River, SC
Reg: 12-26-15
11-23-20 12:23 PM - Post#2808421    
    In response to french-chevy

My 62's valve was missing so I replaced it with a new reproduction valve and H pipe. Adjusted it several times but it still allowed hot water to circulate. Like most reproduction stuff from China, it too is junk. I added a small manual shut-off needle valve in one of the heater hoses. Problem solved.



 
Verne_Frantz 
Member #574 "61-64 Subject Matter Expert"
Posts: 5882
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
11-23-20 07:51 PM - Post#2808466    
    In response to french-chevy

  • french-chevy Said:
hello Paul,i changed the valve with a new and yes the lever is full close position. are there some impala 1962's owner experience to share about this exessive temperature?. this weekend i'll check the valve. thank for information. Christian



If the lever is all the way closed (against the tube) and it's still passing hot water, the problem is internal which means the valve needs to be replaced. There's no way to fix it.

Verne



 
YOUNG57 
Frequent Contributor
Posts: 1271

Loc: Tennessee
Reg: 12-06-10
11-24-20 10:25 AM - Post#2808511    
    In response to 55Brodie

On one of my late model vehicles that has constant recirculating engine coolant thru the heater core the passenger side floor area would be hot from radiant heat from the heater core.

I spliced in a ½” ball valve in the heater hose between the engine and heater. I got it and two ½” hose barbs and hose clamps from a local big-box home-repair store.

In summer I close the valve to cool off the passenger side floor area and help the efficiency of the AC.




 
french-chevy 
Newbie
Posts: 4

Age: 54
Loc: France
Reg: 11-22-20
11-24-20 11:50 AM - Post#2808522    
    In response to YOUNG57

hello, right.. all theses repro valves are built at same place and obviously have same sealing problem. even if its not from factory the only way to fixe is hand shut off valve. it seems no post about it before.



 


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