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thermostat VS heater by pass hose

Printed From: TheAMCForum.com
Category: The Garage
Forum Name: AMC V8 Engine Repair and Modifications
Forum Description: AMC-made V8 engine mechanical, ignition and fuel from basic repair to high-perf modifications
URL: https://theamcforum.com/forum/forum_posts.asp?TID=108993
Printed Date: Mar/29/2024 at 12:40am
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Topic: thermostat VS heater by pass hose
Posted By: johnsjavelin
Subject: thermostat VS heater by pass hose
Date Posted: Jan/13/2021 at 10:51am
Is the thermostat on a 72 Javelin AMX bypass hose the same as the heater hose outside of the firewall?  

Thanks!Tongue



Replies:
Posted By: tufcj
Date Posted: Jan/13/2021 at 11:02am
I think the size is the same.  The bypass hose is a formed hose so that it doesn't kink when hot.

Bob
tufcj


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69 AMX
74 Javelin AMX
67 Rogue

If you need a tool and don't buy it...
you'll eventually pay for it...
and not have it.
Henry Ford


Posted By: 70series70
Date Posted: Jan/13/2021 at 11:16am
I don’t know if i understand the question.
But the thermostat bypass goes from the water pump (top) to the thermostat housing and the heater hose goes from the water pump (Right side) to the heater core.


Posted By: White70JavelinSST
Date Posted: Jan/13/2021 at 5:00pm
NO.

The bypass hose is molded like tufcj said.

The heater hose at the firewall is common straight hose.

The molded bypass hose is readily available at almost any parts store and probably Amazon. It was used on AMC v8s for roughly 25 years.


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70 Javelin SST, second owner, purchased 1972


Posted By: johnsjavelin
Date Posted: Jan/13/2021 at 5:23pm
The thermostat bypass hose goes through  the pump .  On the right side of the pump there is a tube  that a  5/8  hose is  attached, that  hose goes to a heat regulator that is attached to the firewall and a cable  controls  the heat.   5/8 hose goes to regulator then a  bypass hose from regulator to heater core and then back  to  motor     



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