Lotus Elan

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
bdea
First Gear
First Gear
 
Posts: 35
Joined: 23 Oct 2003
Location: SF Bay Area

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!
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2800
Joined: 15 Sep 2010
Location: Long Island NY, USA

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?
USA64
Second Gear
Second Gear
 
Posts: 151
Joined: 10 Dec 2017
Location: USA NJ

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
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2800
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: USA64 » Fri Mar 01, 2019 6:56 pm

Usefull picture, thanks!
We are supposed to be having fun, are we not?
USA64
Second Gear
Second Gear
 
Posts: 151
Joined: 10 Dec 2017
Location: USA NJ

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
bdea
First Gear
First Gear
 
Posts: 35
Joined: 23 Oct 2003
Location: SF Bay Area

Total Online:

Users browsing this forum: elaninfuture, The Veg and 9 guests