I have a fuel leak coming from the #3 bonnet seal on the injection pump, question is do i need to have the pump rebuilt or can this be performed on the dozer?
On the dozer.. if theres room.. most times its just an oring.. other times the bonnet has eroded & needs to be changed.. they're cheap..
Thanks, i bought the orings and bushings from Cat. Also i got the spline tool to remove the bushings, only issue i have is ive never done this before and not quite sure of the correct process to change it out.
Clean & blow off the area GOOD. Remove the injector line & get it out of the way.. {slight bend} Get a socket or something that will fit over the snubber [middle piece} but fit around the bonnet.. now smash the hell outta it 3-4x to break it loose from all the crud.. Blow it off again.. NOW, insert the tool & wack IT w/ a hammer a couple of x to seat it.. NOW, use an impact to break it loose.. you only get about 2 tries.. then the bonnet strips out.. IF that happens, your up the creek.. Good luck.. The torque on the new bonnet is 90-110 ft lbs.. I go 90.. & if she weeps, ease it up 10..
Have to love the precision process that includes: "smash the hell outta it 3-4x to break it loose from all the crud.. Blow it off again.. NOW, insert the tool & wack IT w/ a hammer a couple of x to seat it.. NOW, use an impact to break it loose" I would expect Cat to at least spec. the weight of the hammer! Of course those instructions are from someone who has been there before not some engineer in a white shirt who has never touched a pump that has had dirt or water on it!
I appreciate it, thank you. I will update when i get done.
And THAT's IN THE SHOP.!!!
That is usually my first instinct when working on delicate stuff too. Patience? I don't have time for that LOL.