When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
As above^^, why not just tweak the pump pressure, pump dependant it can be very easy on some, lucas/cav for example takes 5 minutes with a few tools, ie spanner and allen key.
tabetha