Heater Hose Lenght and ID Size Elan S4

PostPost by: bdea » Fri Mar 01, 2019 1:09 am

Hi, could anyone give me:
Correct lenghts of heater hose on the supply and return line from motor to heater core.
If i remember correctly 30 years ago, 5' total lenght was alittle short!

TIA
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PostPost by: pharriso » Fri Mar 01, 2019 11:02 am

Just replaced both of mine, it's 1/2" hose & 5 feet will do it!
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PostPost by: USA64 » Fri Mar 01, 2019 4:09 pm

pharriso wrote:Just replaced both of mine, it's 1/2" hose & 5 feet will do it!


May I ask how you dealt with the right angle hose to heater connection and are the heater connection close to the firewall or the dash?
We are supposed to be having fun, are we not?
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PostPost by: pharriso » Fri Mar 01, 2019 4:18 pm

USA64 wrote:
pharriso wrote:Just replaced both of mine, it's 1/2" hose & 5 feet will do it!


May I ask how you dealt with the right angle hose to heater connection and are the heater connection close to the firewall or the dash?


No issue, just a nice big bend... there's plenty of space.
img_0305.jpg and
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PostPost by: USA64 » Fri Mar 01, 2019 6:56 pm

Usefull picture, thanks!
We are supposed to be having fun, are we not?
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PostPost by: bdea » Fri Apr 05, 2019 5:38 pm

Update FYI:

Total length of heater hose needed: 5 feet (after stuffing extra hose length under dash, I had 1" extra leftover)
ID: 1/2"


Inlet hose length (right side): Water Pump Housing to heater core: >36",
-can be longer if you allow extra length under dash, I noted hose end to be damaged due to age at the housing.
-cutoff damaged end (after 20 yrs) and use again!

Return hose length (left side): Thermostat housing to heater core: >19"
- As above

Picture below are the heater hoses I removed.

The extra pieces of hose:
- to the right on the top (right ) hose was the 2" I took off to pull the hose through the grommet in the firewall.
- to the right on the bottom (left ) hose was the 1" left over from the 5' hose (not showing the 2" cut off piece)
Attachments
20190403_101847.jpg and
Replaced Heater Hose w/o Extra Length
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