B engine heater hose routing

[Geri]

this should be a no brainer but I still cant get it right.
which outlet on the water pump goes to the inlet of the heater?

 

[HD539]

Hope this helps, not sure if this diagram works for your car.

 

[Geri]

View attachment 689742 Hope this helps, not sure if this diagram works for your car.

that looks correct.

 

[steve340]

Hi HD539
Is the picture you have posted from a 1968 service manual?

 

[oldbee]

Yup, just like my ‘68 FSM.

 

[steve340]

Ok thanks oldbee it looks like mine are the wrong way around.
It may not make much difference but I will put it right.

 

[Geri]

Ok thanks oldbee it looks like mine are the wrong way around.
It may not make much difference but I will put it right.

thanks for the information I have a '68 service manual and didn't see this picture, I got it right now. the ide of which goes where is to block hot water from the core when heater is off.
as usual the "B" keepers have the answers. I needed heater hose but they are expensive, I found a seller on ebay selling 50' rolls for $10.00 , OK so it's red hose -for 10 dollars I can be color blind, it now appears I have 38' of unused heater hose.

 

[Geri]

thanks for the information I have a '68 service manual and didn't see this picture, I got it right now. the ide of which goes where is to block hot water from the core when heater is off.
as usual the "B" keepers have the answers. I needed heater hose but they are expensive, I found a seller on ebay selling 50' rolls for $10.00 , OK so it's red hose -for 10 dollars I can be color blind, it now appears I have 38' of unused heater hose.

 

[HD539]

Hi HD539
Is the picture you have posted from a 1968 service manual?

As I recall it was from the 69 Plymouth service manual.

 

[dadsbee]

As I recall it was from the 69 Plymouth service manual.

That's a '68 with the hoses attached to the engine. '69 goes to bracket on inner fender.

 

[HD539]

That's a '68 with the hoses attached to the engine. '69 goes to bracket on inner fender.

Ok, I had it saved on my IPad. Is the routing different between 68 and 69?

 

[dadsbee]

No, both show they cross. Why is beyond anyone's reasoning as there's no valve on the heater core. That said, many OE unrestored cars have been found with the lines running parallel to each other and not crossing. Also seeing the OP's picture, he's on a '64/'65 so a different animal all together that I have no idea on.

 

[Geri]

I'm not concerned as to the routing to and from, only which hose goes where. rear tube on water pump is hot water out and goes to the heater valve, *(yes there is a valve inside the heater box on the '64) spensive little critter to replace if you can find one at around $400.00

 

[steve340]

I had a look at a picture of a non AC heater core. The FSM tells you to connect it the way shown to remove the possibility of the heater core trapping an air bubble.
Hot water goes in the bottom of the heater core and out the top if connected the way Chrysler show it.
My car has never overheated but the temperature gauge does fluctuate a bit so fingers crossed it is improved/problem gone.
I also understand from somewhere that the heater is able to aid with de-gasing the cooling system.
So I assume if you connect the heater incorrectly this may not happen.
Thoughts if any?

 

[steve340]

I had a look at a picture of a non AC heater core. The FSM tells you to connect it the way shown to remove the possibility of the heater core trapping an air bubble.
Hot water goes in the bottom of the heater core and out the top if connected the way Chrysler show it.
My car has never overheated but the temperature gauge does fluctuate a bit so fingers crossed it is improved/problem gone.
I also understand from somewhere that the heater is able to aid with de-gasing the cooling system.
So I assume if you connect the heater incorrectly this may not happen.
Thoughts if any?

 

[65 Coronet]

View attachment 690045

Here is how mine is run...65 Coronet.