|
|
|
Apr 18, 2020 14:39:56 GMT
|
|
Doing some work on a friends 73 Morgan with a crossflow and trying to sort out some of the bodges......Am I correct in thinking that the water should flow out of the port on the inlet manifold to the heater matrix and is returned to the port just above the radiator hose on the water pump? Or is the flow the other way around?
|
| |
|
|
|
|
|
Apr 18, 2020 15:26:37 GMT
|
|
Hi, Yes, hot supply from the manifold and the return to the w/pump.
Colin
|
| |
|
|
|
|
|
Apr 18, 2020 16:50:47 GMT
|
|
I doubt it makes a difference what way round the heater pipes go but the one that goes to the water pump will be high pressure so that will be your inlet to the heater
|
| |
|
|
|
|
|
Apr 18, 2020 20:29:59 GMT
|
|
Isn't the one at the water pump T'd into the bottom hose and on the suction / low pressure side of the pump making it the return from the heater?
On some cars I have found putting the heater feed at the bottom and return at the top helps them bleed.
|
| |
|
|
|
|
|
|
|
|
Yes it joins onto the front of the water pump housing just above the inlet from the radiator. The Morgan matrix is the highest part of the water system and the near side inlet is lower than the off side. The reason for my question is so I could plumb the feed from the engine into the lower side and the return onto the higher one. It’s been plumbed the other way around previously and has been suffering airlocks and spitting water out for fun!
I’ll swap it over later and run it up to temperature the lift the front end to give it the best fighting chance......just a shame my vac filling kit is 200 miles away!
|
| |
|
|
|
|
|
Apr 19, 2020 17:04:18 GMT
|
|
My bad. Should be low pressure from heater core outlet to water pump. Apologies.
|
| |
|
|
|
|
|
Apr 19, 2020 17:05:41 GMT
|
|
My bad. Should be low pressure from heater core outlet to the water pump. Apologies
|
| |
Last Edit: Apr 19, 2020 18:10:19 GMT by jonsey
|
|
|
|
|
Apr 19, 2020 17:25:28 GMT
|
|
Hi, The heater should be plumbed the same as the main rad ie hot in the top and cold(er) out the bottom. If as you say it's to bleed it you could run it at fast idle and try pinching off to restrict the main rad hoses to force it to circulate through the heater and purge it.
Colin
|
| |
|
|
