mad_pete Posted July 27, 2008 Share Posted July 27, 2008 On the back of the water pump ( at the top slightly to the left ) on a 4.2 V8 is a threaded stud. I dropped the nut never to be seen again. What thread is it ? Quote Link to comment Share on other sites More sharing options...
vougese39 Posted July 28, 2008 Share Posted July 28, 2008 should be 8mm/1.25 or could be 5/16 unf Quote Link to comment Share on other sites More sharing options...
steve_d Posted July 28, 2008 Share Posted July 28, 2008 Most likely 5/16. Pop round and have a rummage in my nut & bolts box. Steve Quote Link to comment Share on other sites More sharing options...
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