Lotus Elan

Elan S3 fuel tank

PostPost by: Dieschelan » Mon Oct 12, 2020 9:04 pm

Hi

I will buy a new aluminium tank for my S3. The question is if I need other type of fuel sender. I know than the early tank is smaller than the later.
And the fuel guage is also diferent...

Cheers

Diego
Dieschelan
Second Gear
Second Gear
 
Posts: 175
Joined: 07 May 2015
Location: Spain

PostPost by: alan.barker » Tue Oct 13, 2020 8:42 am

Have a look in the for sale here. Someone is selling a tank
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2471
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: nmauduit » Tue Oct 13, 2020 11:21 am

if you want to keep your gauge, you may want to double check what impedance range it is expecting (0-90 Ohms or 30-230 Ohms), see for instance
https://lotuselan.net/forums/viewtopic.php?f=38&t=35098&start=
S4SE 36/8198
User avatar
nmauduit
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1553
Joined: 02 Sep 2013
Location: France

PostPost by: elated » Wed Oct 14, 2020 6:16 pm

Certainly s3 fuel tanks were larger than those fitted to s4 etc(due the latter's need to accommodate the spare with the then standard bigger tyres.
Self-evidently the fuel level sender and the gauge must match: the systems fitted to s3 and s4 differ fundamentally and may not be mixed.
Gordon
elated
Second Gear
Second Gear
 
Posts: 65
Joined: 21 Jan 2011

PostPost by: Craven » Wed Oct 14, 2020 7:20 pm

Fuel gauge does not measure quantity in units, just indicates the level of fuel in the tank.
If a S4 & S3 tanks are the same height there would be no need for a different tank unit
Craven
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1123
Joined: 14 Sep 2013
Location: south coast uk

PostPost by: elated » Wed Oct 14, 2020 7:32 pm

The gauges are based upon moving coil meters. On s3 the resistance is low when empty. On the s4 the resistance is high when empty.
Gordon
elated
Second Gear
Second Gear
 
Posts: 65
Joined: 21 Jan 2011

PostPost by: Craven » Wed Oct 14, 2020 7:54 pm

I think I covered the difference of types fairly well in the previously indicated link.
viewtopic. ... amp;start=
Craven
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1123
Joined: 14 Sep 2013
Location: south coast uk

Total Online:

Users browsing this forum: No registered users and 8 guests