Help Needed Injection Pump tools

I have a leak on the injection pump (the top of the pump where the tickover and fuel temp sensor etc etc)

I can send a picture (if needed) as 3 of the 4 bolts are torque heads but one is a security head and is approx 7.5mm

I need to know if anyone has removed this bolt as I have a leak and have the seals but can't get into them to change them because of this one bolt.

No one locally has the socket to remove the bolt and I would like to know if anyone else has done this job and if so how was this bolt removed.

I would like to keep the pump on the car whilst doing the job (remove the inlet manifold etc) but other than welding a socket to it or using metal paste to bond the socket to the head of the bolt I can't come up with any other way

Help is appreciated..................Thanks in advance

Sorry should have said it is an 2.5 P38 diesel with the M51 engine 1997

You can get the special socket to fit the security bolt but the bolt usually ends up UC anyway.
JM told me you can use an old 7 mm socket and tap it on tight with a hammer. Will ruin the cheaper socket piece but will undo it. Replace with a normal metric bolt.

If you are talking the triangular one most people just hammer a cheep socket over the top to undo it.
make sure you scribe marks across the flanges of the top on all sides to help realignment as it has to be exactly the same place and make sure the little pin inside goes back in the collar .
and do you have diag to check its back in the right place,

@Mukiwa bought a bag of 10 security bolt sockets in order to get one - might still have a spare he’d part with for few beer tokens.

Thanks for all the info, I do have the software and equipment to make sure everything is right.........I tried to put a 7mm socket on but it won't have any of it.

@Mukiwa do you have a tool I can buy from you?

Cheers

Like Brian said - practice getting the pin in the cup few times before final fitment and mark it up well ; fraction out and it will idle terrible.

RangeRoller dt said:

Like Brian said - practice getting the pin in the cup few times before final fitment and mark it up well ; fraction out and it will idle terrible.

Click to expand...

He is talking the top of the pump not the mid section.

I've pm'd him. Been quiet due to busy job and severely missing the armchair for my weekly travels. Looks like it will be Christmas holidays to complete the job due to time constraints.
9/32 whacked on carefully with a BFH fits better than the 7mm socket

I'm guessing you mean for the security bolt? I've pm'd you.

Other tools requirement depends on what else you want to do. I can tell you what I used if you let me know how far you are going and which o rings you are changing

In the post today or tomorrow - sorry for the delay.

Hoppy