Hint for HP belt tensioner adjustment It was used to be very tough work : the tension adjustment of High-pressured Pump-drive belt( following, HP belt) for Citroen BX.
It seems everybody have a hard time to access; using long bar, making original "Special Service Tool" at Citroen specialized shop and so on.
It adjusts manually by setting the tensioner; however, it is located in narrow/deep inside & surrounded high-pressure hoses nearby.
I also used bar for it before. Later Mr.Shoji- Japanese CitroenML member- has taught me a better solution. Here, I introduce the way with adding my own approach.
The method is easy - you just open your bonnet of vehicle, thus neither removing tire wheel nor inside-cover at fender are required.
You can work away from your garage ,as well as stuck vehicle which cut the belt.
# 16V and Diesel models have different pump locations from the bellow pictures.
Tools for this time
Beside the alternator-stay, you can see square notch which adjust HP belt-tensioner.
Now, here is"learned" method - it was Columbus' egg to me.
After realizing this tool availability, now I loosen the bracket fixing bolts.
Next tool is 13mm deep-off-set wrench.
On the work of tension adjustment, sometime it is hard to put force on 17mm spanner, because of its short length. The photo shows "long nut" which uses for connecting screw bars, it is available at almost all D.I.Y. stores in Japan. Thus, I assembled two wrenches with it as for fulcrum.
Put together long nut with the wrench holes.
As you can see the photo, I use them with some angle.