Rerouting coolant hoses?

aheroicrevolt

Le Kittens Meow
Sep 30, 2012
100
0
0
Grand Rapids MI
My heatervalve/heater diaphram switch thing on the passenger side firewall has been bypassed.

The 7M has those hard line coolant tubes that wrap around the block under the exhaust manifold and intake manifold. On the exhaust side at the back of the engine, there is an outlet facing the passenger side of the car that I have no idea what it is. BUT I have an open coolant fitting on that same side firewall just to the upper left (looking at car from front)where the lower heater diaphram tube was removed. Then there is the coolant tube that comes out the top of the coolant block on the back of the engine that WAS connected to the top of diaphram but now have it coming forward from under the windshield cowl then around and down TO THE RIGHT, connecting to the another firewall fitting.

What are these tubes connecting to in the firewall? Is it my heater core? It is strictly a summer car so I do not need the heat.

Could I run the coolant hoses from that back left connection on the engine, to the fitting coming out the top of the coolant block? Bypass the whatever it is in my firewall completely as well?

Blue hose is what I don't know what it connects too, and the red hose bypasses that heatervalve and runs the opposit way to the drivers side firewall. I'm wondering if i can just connect them together and not completely mess up the flow!?
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Last edited:

585Soup

New Member
Mar 12, 2015
84
0
0
Colorado
mine is capped off like that... im keeping my heat. doesn't hurt performance to not keep it. plus, being in the northern states, we still get some cool nights
 

Nick M

Black Rifles Matter
Sep 9, 2005
8,898
40
48
U.S.
www.ebay.com
aheroicrevolt;2049091 said:
In that diagram is shows "from heater", but on my coolant tubes that entry point is capped off. what...in...the...hell

Didn't you say it was bypassed? Is there something wrong with fixing it? The valve limits coolant flow through the core in summer while not creating a void.