I have a slight diesel leak which seems to be coming from the side of the injector pump under the dome shaped cover ringed below.
I have taken this off and there seems to be a small 'O' ring behing, can I just replace this if so where do I get a replacement from. I have got a general bag of small 'O' rings from Halfords- am I likely to get a good enough fit from this or do I need the exact item. It is a ZEXEL injection pump.
Many thanks for any help