It works OK. The blower is a bit noisy on the high speed. It wasn't too difficult to install either.
As if a 70 year old truck cabin is quiet anyway. I can't hear my heater on high when I'm on the freeway because its drowned out by wind noise and valve clatter!
Last edited by Otto Skorzeny; Sat Nov 12 2022 04:18 PM.
1939 Packard Standard Eight Coupe (The Phantom) 1950 Chevrolet 3100 (Ol' Roy) 1956 Cadillac Coupe de Ville (The Bismarck) 1966 Oldsmobile Toronado (The Purple Knif) 1966 Ford Mustang (Little Red) 1964 Ford Galaxie 500 coupe 1979 Ford F-100 1976 Ford F-150 (Big Red) 1995 Ford F-150 (Newt)
Hi guys. Thank you for the follow up. I bought a recirculating heater from Ebay that will probably need restoring to work. (See photo). I'll probably get around to that after the holidays. If the core is bad, I'll use Jon G's copper tubing core idea, maybe a new motor, lube and cosmetics. Your photos and process looks great Mike. I'll pm you for restoration tips. Don
You should be able to split the fan motor carefully and clean the inside and grease the bushings , just be careful of the Brushes as they are difficult to put in place when putting back together
Any tips for pressure testing the old heater core?
Did someone say household water pressure is enough to emulate our low pressure cooling system? (I have a 7lb pressure cap on my 235 w/new reproduction radiator.)
Household water pressure (typically 30-60 psig) is way too much to test a heater core. My ‘59 235 runs a 4 lb. cap so testing much above that is asking for trouble. I have tested filling the core with water, plugging one side and applying air pressure to the other. if you can get your air compressor regulator down to 8-10 PSIG, that is more than enough. You also may be able to borrow on from your FLAPS.
Auto Zone, Advance Auto, etc will loan you a radiator pressure testing kit for free.
Last edited by Otto Skorzeny; Thu Nov 17 2022 05:27 PM.
1939 Packard Standard Eight Coupe (The Phantom) 1950 Chevrolet 3100 (Ol' Roy) 1956 Cadillac Coupe de Ville (The Bismarck) 1966 Oldsmobile Toronado (The Purple Knif) 1966 Ford Mustang (Little Red) 1964 Ford Galaxie 500 coupe 1979 Ford F-100 1976 Ford F-150 (Big Red) 1995 Ford F-150 (Newt)
Thanks for the excellent pressure testing ideas. My truck has no heater switch on the dash, and one didn't come with the Ebay heater. Does the switch determine high or low fan speed? Can I use a 15 amp toggle switch?
A toggle switch will only give you one speed. On and Off.
If you want variable speed, get one of the rheostat switches. Or get one of the Hi Med Lo Off switches.
It's Standard Motor Products part# HS92 (6v) available from Classic Truck Parts and other places. It's available in 6v and 12v (HS572) and it's lighted as well.
Last edited by Otto Skorzeny; Mon Dec 05 2022 04:18 PM.
1939 Packard Standard Eight Coupe (The Phantom) 1950 Chevrolet 3100 (Ol' Roy) 1956 Cadillac Coupe de Ville (The Bismarck) 1966 Oldsmobile Toronado (The Purple Knif) 1966 Ford Mustang (Little Red) 1964 Ford Galaxie 500 coupe 1979 Ford F-100 1976 Ford F-150 (Big Red) 1995 Ford F-150 (Newt)