21-12-2012, 11:57 PM
standard hdi pump. it's the bit ontop of it held in with 3 screws
http://www.tdocuk.com/viewtopic.php?f=7&t=1155
"Teh 3rd piston is used for many things - controlling overtorque, anti stall and to provide enough fuel when required. This is in situations like going up hills, overtaking in top gear etc"
http://www.tdocuk.com/viewtopic.php?f=7&t=1155
"Teh 3rd piston is used for many things - controlling overtorque, anti stall and to provide enough fuel when required. This is in situations like going up hills, overtaking in top gear etc"