A fairy common filter which is also in use on the same era Lotus Esprit. A point of note is the filter should be fitted with a seal which is not identified in the Elan manual, but is in the Esprit.
The filter is located in a compartment below the hood stowage area. It is situated towards the left hand side of the bay.
The filter can be found behind the metalic panel.
How to replace the fuel filter
|WARNING - Explosive hazard
Isolate the battery before any work to the fuel system.
Remember to depressurize the fuel system.
- Lift out the carpet inside your hood stowage cover.
- Take the battery inspection cover and wedge it lengthways between the rear edge of the roof and the front edge of the stowage cover.
- That will give you plenty of room to work (and is a really handy tip if you've ever got any other work to do in that area).
- Undo all the screws and remove the plastic tray. ( The screws, sometimes called Scrivets, appear to be made from plastic, but they are in fact made of chocolate. If the screws round off, a wood chisel is the perfect tool for removing the heads).
- Then, from the driver's side, you'll be able to see the inspection hatch. It's an aluminium plate that's mounted vertically on the RHS of the fuel tank. Remove the 4 screws and voila, there's your fuel filter.
How to remove the filter
- Start the engine and then pull the inertia switch.
- The engine should stall and depressurize the fuel lines.
- Remove the battery.
- Release the filter from its clamp with a 10mm socket on a 1/4" drive ratchet. This gives enough clearance to move the actual filter fore and aft to get at the fittings.
- With a 21mm (adjustable) open end spanner on the filter, and a 16mm on the fitting, loosen off the fittings slightly (beware of pressurised residual fuel - have a rag handy!)
- In theory the outer (threaded) part of the fitting will rotate, with the inner bit staying still - Like on a brake pipe.
- In reality, the 2 bits may be rusted solid (mine were, anyway) - hence as you unscrew the fitting, the plastic fuel line 'winds up' and squashes itself flat - weakening it and maybe giving it somewhere to split when under pressure
- Replace the 2 rubber 'o' rings on the fittings (Rover part, not mentioned in the Elan manual, but is in the Esprit manual which uses the same filter and seals.) and screw the inlet fitting (the loose one!) onto the inlet side of the filter - tighten up with the same 2 spanners you took the old one off with.
- Screw the filter onto the outlet fitting - dangling somewhere next to the tank - and tighten up with spanners. Push it forward a bit to get to the rear fitting.
- Push the loose end of your nice new rubber hose onto the fitting - don't forget the jubilee clip. Do it up.
- Wiggle the new filter back into its locating bracket and replace the bolt.
- Replace the battery
- Reset the isolator
- Turn ignition key as to prime the fuel lines, but do not start the engine.
- Check the new filter for leaks
- Start the engine, check for leaks
- Put the bay back together.
It might sound a bit strange, but if you do it this way, and have the parts you need at hand - it is literally a 10 minute job! Remove the fuel filter
- Fuel filter - Fram G3727 (Lotus A910E6929F £13.63 ? See Here for alternatives)
- 2 x 'O' rings (Lotus A082L6169F £0.57 ea) - Alternative MG/Rover part # EDP9976
- 60cm 8mm bore Injection fuel hose
- 2 x jubilee clips (size 0000)
- 21mm open-end spanner (wrench)
- 16mm open-end spanner (wrench)
- Cross-head screwdriver
- 10mm socket on 1/4" drive
- Stanley knife
- 7mm socket for jubilee clips