Lotus Elan

Heater Matrix For S3?

PostPost by: billmoore42 » Sun Feb 03, 2019 3:49 am

I have a 1967 S3 FHC with a missing heater matrix (the previous owner lived in a warm climate and removed the matrix for more ventilation). Does anyone know if this item fits or where to get a new heater matrix to fit the S3 (not a plus 2)? I am in California, but can order from the UK if they will ship to the States.

http://www.vehicleheaters.co.uk/Heater% ... 20122.html

It looks like the original heater box is in place with all the vents attached, and the two speed fan works. I want to have this part on hand before I attend to the reputedly long job of removing the dashboard.

Also, the engine is in place and I do not want to remove it. Any recommendations as far as flexible 1/2" silicone heater hoses to make the job easier?

Thanks

Bill Moore
1967 Lotus Elan FHC Spyder Chassis
1972 MGB (since 1975)
billmoore42
New-tral
 
Posts: 11
Joined: 12 Apr 2018
Location: California

PostPost by: Bombay Racing Green » Sun Feb 03, 2019 7:39 am

It looks about right Bill. I believe it was shared with the FX4 taxi. Are you in SoCal or NorCal? I only ask because if you’re in North California you could reach out to Mike Ostrov in Richmond. He’s a great help.

This might help:
https://youtu.be/LmJEvoIxx7Q
And this:
https://youtu.be/nDNtQ4fcMyM
The Europa’s heater is similar but doesn’t have the integral fan. The flap knobs are slightly different too.

Regards,
Pete
1970 S4 DHC
1971 S2 Europa
1968 +2
Bombay Racing Green
Second Gear
Second Gear
 
Posts: 194
Joined: 05 Sep 2012
Location: Wicklow, Ireland

PostPost by: disquek » Sun Feb 03, 2019 2:55 pm

I recently bought this heater core to replace the leaking one in my S4.

https://www.ebay.com/itm/Passenger-Side ... 2147375683

It fit after some simple and minor tweaking of the two sides. I slightly bent the pipes to get the outlets to match the holes in the box. The misalignment was less than 1/2" and likely the result of shipping or other issues.

-Kyle
'70 S4 Elan - Cosworth BDP & Spyder Chassis
'62 S2 Super Seven Cosworth
disquek
First Gear
First Gear
 
Posts: 39
Joined: 25 Oct 2018
Location: USA - Philadelphia

PostPost by: pharriso » Sun Feb 03, 2019 3:07 pm

billmoore42 wrote:Also, the engine is in place and I do not want to remove it. Any recommendations as far as flexible 1/2" silicone heater hoses to make the job easier?

Thanks

Bill Moore


No need & 1/2" regular heater hose works fine. Good time to get the correct hose clamps if you do not have them already...
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2436
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: 69S4 » Sun Feb 03, 2019 3:15 pm

[quote="pharriso" Good time to get the correct hose clamps if you do not have them already...[/quote]

I've got normal Jubilee style clips on my heater hoses. Are they the correct ones? As far as I know they're the original fitment.
Stuart Holding
Thame UK / Alpe D'Huez France
69 S4 FHC
69S4
Fourth Gear
Fourth Gear
 
Posts: 994
Joined: 23 Sep 2004
Location: nr Oxford UK

PostPost by: pharriso » Sun Feb 03, 2019 3:58 pm

69S4 wrote:I've got normal Jubilee style clips on my heater hoses. Are they the correct ones? As far as I know they're the original fitment.

Original fitment was the wire kind:
wireclamps.jpg
wireclamps.jpg (20.12 KiB) Viewed 208 times

Available from Sue Miller, Matty, RDEnt etc. You need 4 off 1/2" ones for the heater hoses, replace the firewall grommets at the same time... (Dimensions: 3/4"ID, fits 1" hole, 1-3/16"OD Ref. 36B6167)
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2436
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: Craven » Sun Feb 03, 2019 4:30 pm

Those wire clips are one of the worse in the world in my opinion. Use a stainless steel jubilee type clip. However you will need a Narrow series clip to ensure the hose is clamped below the flare on the matrix pipe.
https://www.jubileeclips.co.uk/assets/u ... -Range.pdf
Craven
Fourth Gear
Fourth Gear
 
Posts: 780
Joined: 14 Sep 2013
Location: south coast uk

PostPost by: billmoore42 » Sun Feb 03, 2019 5:00 pm

Pete, Kyle, Phil, and Stuart:

Thanks for the information, this is much appreciated.
1967 Lotus Elan FHC Spyder Chassis
1972 MGB (since 1975)
billmoore42
New-tral
 
Posts: 11
Joined: 12 Apr 2018
Location: California

PostPost by: prezoom » Sun Feb 03, 2019 5:17 pm

I purchased silicone hose from hps-siliconehoses.com. They have a good selection, including the hump hose used on S1/S2 radiator connections. Not the cheapest place in town. Be sure you use the proper hose clamp for silicone hoses if you decide to use them. Wire clamps and unprotected cut threads on most hose clamps should not be used.
Rob Walker
26-4889
50-0315N
1964 Sabra GT
1964 Elva Mk4T Coupe (awaiting restoration)
1965 Ford Falcon Ranchero, 302,AOD,9",rack and pinion,disc,etc,etc,etc
1954 Nash Healey LeMans Coupe

Lotus is a life sentence with no parole
prezoom
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1124
Joined: 16 Mar 2009
Location: Escondido, California

PostPost by: disquek » Sun Feb 03, 2019 5:25 pm

I used all silicone coolant hoses on the race cars and they worked great.

However, I'm not confident that they're the best for a street car. Here are a couple of sites describing why.
https://motoiq.com/silicone-radiator-ho ... he-street/
https://www.siliconehose.com/blog/silic ... bber-hose/

I used the Aeroquip rubber AN hose from Pegasus for the heater hoses on my car.
https://www.pegasusautoracing.com/produ ... oduct=3491

I didn't have the correct sized Ottiker clamps at the time (the best option), so I used these clamps (I think they were a bit long so I shortened the straps).
https://www.mcmaster.com/catalog/125/333

-Kyle
'70 S4 Elan - Cosworth BDP & Spyder Chassis
'62 S2 Super Seven Cosworth
disquek
First Gear
First Gear
 
Posts: 39
Joined: 25 Oct 2018
Location: USA - Philadelphia

PostPost by: snowyelan » Sun Feb 03, 2019 8:00 pm

User "Christian" in Fl has some bits for sale. There appears to be a complete heater box in his pics.
Scott
45/9011
Hawkestone, On, Ca
snowyelan
Second Gear
Second Gear
 
Posts: 149
Joined: 14 Sep 2003
Location: Hawkestone, Ontario, Canada

Total Online:

Users browsing this forum: No registered users and 10 guests