Just the Pierburg 2e3 fuel delivery and ignition. Fault finding, service and repairs. LPG included as this is a common addition
Not the engine it’s self there are loads of build threads on that
Most of the pics are from my late DG but the early DG is very similar with regard to the fuel and ignition system
2e3 Manual
Click to access Pierburg%202E3%20Maintenance%20and%20Repair.pdf
2e3 2e4 VW manual
Click to access VW_Transporter_80-92_2E3-2E4.pdf
Wiring diagrams ( late van)
Click to access VW_Transporter_80-92_SP_DG.pdf
2e3 Adjustments – James Akers
https://vwt25.blog/2016/09/15/pierburg-2e3-rebuild-and-adjustments/
Stripping a 2e3 Video – James Akers
Brickwerks blog checking coil
https://www.brickwerks.co.uk/brickwerks-blog/t3-ignition-checks-ignition-coils/
Testing hall sender
https://club8090.co.uk/forum/viewtopic.php?t=160851
https://club8090.co.uk/forum/viewtopic.php?t=152836&p=8144062
Which engine and Carb you have – Solex to Pierburg swap (smiffo)
https://club8090.co.uk/forum/viewtopic.php?t=147477
Changing a Pierburg 2e3 jet form 110 to 120 for a DJ 2.1
https://club8090.co.uk/forum/viewtopic.php?t=131529&p=8202199&hilit=main#p8202199
Pierburg 2E3 Rebuild and Adjustments Video ( Jamesakers)
https://club8090.co.uk/forum/viewtopic.php?t=155368
DG new fuel pipes & LPG fuel cut off valve relocation
https://club8090.co.uk/forum/viewtopic.php?t=162694
ignition timing manual setting
https://itchyfeetuk.wordpress.com/wbx-dg-ignition-timing/
Flat spot at 2500rpm
https://club8090.co.uk/forum/viewtopic.php?t=168780
LPG:
OMVL R89E service manual
Click to access 809100_01_R89_E_Use_and_Maintenance_Manual.pdf
OMVL R90E service manual
Click to access omvl_reparaturanleitung_r90e_verdampfer_eng.pdf
Part number location
Choke
Shows which way the bimetalic spring moves with temperature
Plastic link to choke flap ( often broken)
location
press here to take choke off ( rotate throttle to set it)
restrictor in choke pull down pipe
2nd throttle vac operated
check vac ports are clear
Float
removing pin
some early carbs have a different float valve
accelerator pump
Cut off valve
Duct heater
Part load enrichment valve
Manifold heater and circuit
Relay in black box – 12V power from stud in black box which is fed from alternator
Thermoswitch in thermostst housing – shown with rubber boot removed
Manifold heater underneath
circuit also powers duct heater
Co idle adjustment screw
clockwise lowers CO
Fuel filter in inlet pipe
Fuel delivery
Fuel filer location – only one and only here!
Fuel pump
if you fited and electric one I hope you have a relay
Electric fuel pump mod cut off relay
https://club8090.co.uk/forum/viewtopic.php?t=166418
Fuel return one way valve ( located behind bulkhead shown pulled through
fuel return to tank
Distributor strip down
https://itchyfeetuk.wordpress.com/wbx-distributor-strip-down/
don’t forget to oil it…
https://club8090.co.uk/forum/viewtopic.php?t=170428
Ignition module
Coil ( note earth point hiding underneath)
LPG
Typical mixer ring on top of pierburg ( needs longer studs to ‘pancake’ trunking
Typical twin power valve in pipe from vapouriser to mixer ring,one valve for primary one for secondary throttles.
Typical single power valve for both throttles
Typical vaporiser ( this is an OMVL brand)
Typical fuel cut off valve and bypass switch ( bypass to get you home on pertol if the LPG system fails)
Typical LPG controller switch in cab
Typical Blos ( used in place of mixer ring)
Backfire protection ‘Cat flap’ in the pancake
Some people have suffered repeated backfire when on LPG which destroys the pancake even with a backfire protection valve, there is air fuel mix in the pancake and these can be warped over years of heating, sparks may well be responsible so a tip here from Patrick
patrickpawsey
run an earth lead from the carb to a suitable earth point which resolves the ‘sparks from the carb’ issue (there is an electrical feed to the carb and the return via the engine block/inlet manifold is not always great any more so sparks can jump from the carb to the nearest earth, not what you want in the engine bay
itchyfeetuk.wordpress.com 