VCCA Home Forums TECHNICAL - 1945 AND NEWER 1949-1954 Which parts to choose from?

You didn't think you could get through the weekend without a question from the "weekend warrior", "wonderer".

I wonder which of these two bolt heads is correct for the fuel pump? There was one of each in the parts car, and who knows where my stash of originals went?????



Second thing I wonder is should I replace this shut off valve by the thermostat housing? And the second insert comes from the water pump.

I don't have access to an "accessories" manual and my car did not have heat originally. I notice in a past thread/post someone said they don't bother to shut off this line in the summer months anyway.

thoughts on which would be more correct????

As always thank you in advance for all your advice!


Also it appears?? by some photos from my parts car that the passenger side of the heater valve line coming out of the firewall dumps back into the thermostat housing?

And I would guess that the driver's side of the valve goes to the rear of the heater box and then the front port of the heater box goes to the water pump??

Disregard the "t" and the other line running over to the head bolt heater FYI.

The correct path of the heater hoses are in the 51 accessory manual .

You can get a reprint of the accessory manual from the Filling Station in Lebanon, Oregon.

An accessories manual can be purchased I believe from the FS, but if not also try National Chevy Assoc. I am also restoring a 51 and find the manual very handy, especially when working late and wanting an answer now. The heater hose routing has been discussed before so perhaps with a search on the site you may find it. In this case the manual is much easier to use than the "search" function.

I'm not going to tell you the installation for the 1950 heater is the same as the 1951. I don't know.

BUT, if they are, click here to read the info for the 1951 Air Flow Heater, beginning on page 27. Several pages to read.

http://chevy.oldcarmanualproject.com/accessories/1951am/51aim27.htm

If you are interested in the 1951 Recirculating Heater, click here, beginning on page 34. Again, several pages to read.

http://chevy.oldcarmanualproject.com/accessories/1951am/51aim34.htm

In the materials provided, you will see the shut off valves, as well.

Thanks a bunch! It appears how I thought. However the shut off valve on my parts car came off the thermostat housing not the water pump shown. I see the "flow" appears to be coming from the therm to the heater valve switch through the radiator and back through the water pump. I guess that al makes sense as you can trap the hotter coolant between the engine and the firewall when the switch is closed. Not sure if the suit off valve is all that necessary? As one of the past posts mentioned and some diagrams show and some don't.

Also I see I bought the wrong hose clamps. FS sent me the wire clips and I didn't feel good about putting those tiny wires on and didn't.i

Ps I am restoring a 51
Thanks
Dads 51

Yep, I knew yours was a '51 2 days ago, yesterday I thought it was a '50. Brain =

I don't think either of the bolts are correct. I may be wrong.

Charlie

FWIW, I always disconnect the heater in summer. (Loop one heater hose back into the engine.)(I never get my car judged.) It makes a big difference in "cabin" temperature in hot weather. Otherwise, in a short time the water temp in the heater is equal to the water temp in the engine & radiator - which ain't welcome in my car in summer.

A shutoff valve will not prevent the engine water temp from heating the water temp in the heater.

"To each his own."

Exactly my concern in New Mexico's summers. Heat! I guess a guy could put on two shut off valves?

Shut off valves will not prevent the water in the heater from becoming hot. In summer months I simply use one heater hose to make a loop connected to both heater hose connections on the engine which isolates the heater completely. It ain't pretty but I get no engine heat in the "cabin". No, it isn't good for show points (you could reconnect the hoses during a show). I never have a car judged but I respect all who do so.

Interesting about the heat transfer, good plan.

I don't really plan on sowing either, just want to make it as period correct as I can.