Removing 4.5 injection rail - help needed!

[Wolvesboy]

Hi All,
In process of exchanging Oil Pressure Switch on 4.5. Have to move rail as coil pack bolts spinning.
I cannot see how I can undo the 4 Allen key bolts holding the inj. rail in place. If they were normal bolts could get to them from the side. BUT they are Allen key bolts and can only undo from top. I cannot get an Allen key anywhere near close enough to undo them.
Any ideas please?
Both photos highlight the bolts in the middle of photo.



Cheers.

[Wolvesboy]

Thanks for the quick replies - makes sense now! I was so fazed by the unreachable 4 corner bolts I didn't think about "stubby" Allen keys and completely forgot about my ball end joint kit!
Heaven only knows how anyone can access the Oil Pressure a Switch without removing the injection rail - that is something I would like to see on YouTube. I know I would drop half of the screws into the depths of the engine and would end up cursing everything under the sun!
I am enlightened again and will not let the cerb beat me! The injection rail and throttle body will come off! I have to make sure the 3 quid OPS part fits properly!
Cheers.

[Wolvesboy]

You are right - in moving the fuel rail I was able to access the coils and the see the Oil Pressure Switch.


Problem now is getting a 25mm/inch socket to get the in situ OPS off. All of my sockets only go to 24!
Now trying to remove plate beneath the coils to access the OPS with a spanner rather than socket and 2 bolts stuck - one has snapped my ball end Allen key in it also.
Turning into one of those jobs where more jobs are caused by the initial one. May need to grind the bolts off. Fingers crossed the access to the OPS is enough to get an amended spanner in.
Cheers

[Wolvesboy]

Ended up grinding and cutting a 25mm (1 inch) spanner to finally undo the OPS. See picture for details.



No washer made it harder to budge.

I smiled as it has been a PITA. Then tried the Intermotor 50500 replacement only to find it does not fit as the thread is too small.



In a bit of a quandary as not sure if my engine is 4.2 or 4.5 still as in that period where everything was going on at TVR. Since found out that my ECU also has 4.5 written on the face plate? So will have to spend some time at motor factors ensuring I get the correct part.

[Wolvesboy]

You are right - in moving the fuel rail I was able to access the coils and the see the Oil Pressure Switch.


Problem now is getting a 25mm/inch socket to get the in situ OPS off. All of my sockets only go to 24!
Now trying to remove plate beneath the coils to access the OPS with a spanner rather than socket and 2 bolts stuck - one has snapped my ball end Allen key in it also.
Turning into one of those jobs where more jobs are caused by the initial one. May need to grind the bolts off. Fingers crossed the access to the OPS is enough to get an amended spanner in.
Cheers

[Wolvesboy]

Hi All,
Oil Pressure Switch done and everything working fine. Finally purchased the correct item from Bespoke in Ware and great service, advice and help? Bought injector o rings in case but the DOT 4 as lubrication worked a treat. I managed to manipulate the injection rail back in without any dramas and having checked each one upon start up all seems fine. Just waiting for some half decent weather now.
Onto next job. Of sorting out leaking doors/ seals then heater as only blows cold.
Great to receive many suggestions and help and I really appreciated it - hopefully I can help someone else along the way!
Cheers.

[Wolvesboy]

Thanks fellas - the OPS works a treat and all as should be.

Onto the seals and heater in between blasting around in the coolest car ever! Picking the kids up from school is now fun!