Ran into a problem with the XDI pump yesterday.
Drove the 100 mile trip from Richmond to my house... my buddy came with with me and drove my fiesta back. Drop the fiesta off and he gets in the SHO... get of my neighborhood and into the highway.. no boost... nothing... no check engine lights... no acceleration... just flat dead.... barely gets enough load to move..
Limp it over to the gas station....
The left bolt on the XDI pump that holds the plate/spacer to the cam lobe snapped... which caused the right bolt to pop out of the cam lobe pedestal which stripped about a 1/4inch of threading from the top of the hole...
Oil went everywhere!
We were able to use a small screw driver to unscrew the broken bolt from the HPFP pedestal. We did not need a screw gun with an extractor. We got very lucky...
Verified that there was enough thread depth left on the right hole to support a new screw. We had plenty of thread depth left.
Stock screw is 1.0x35mm 1.00 pitch with a torx head. The new screw that comes with the XDI pump is a 6Mx1.0x35mm 1.00 pitch stainless steel A270 hardness...
I ended up with picking up some 6Mx1.0x40mm 1.00 pitch 12.9 hardness screws...
I decided to go with a longer stronger bolt as the black plate is also a spacer... so there is plenty of extra thread depth to make up for the stripped amount.
Pulled the cam guide for the pump and checked it along with the cam for scoring or damage. It all looked very clean with no damage. Had to pull the plugs on cylinder 4 and 5 to clean up the pooled oil/fuel....
Needless to say... this was HIGHLY disappointing.
Separation of pump from lobe...
Broken bolt still in pedestal...
Stock bolt on left, broken on in middle, what it should be on right.
New bolts...
Sent from my iPhone using Tapatalk
