19-06-2012, 09:34 PM
hi, this is my first post so bare with me please, i recently bought a bosch pump off ebay, 11mm head gov mod... but when fitted i went to turn the engine over via crank pully as to test timing. but i hit a snag as it would lock up and jump a tooth after a lot of head scratching i found the new pump was locking up?? i have spoken to the chap i bought it off and its going back this week end, ive worked on these pumps before but only as far as gov mods and pin grinding so am lost as to whats going on? figured id throw it out there see what you guys thought.