Wish I could help you with the ***** diameter... sadly I haven't even seen a Disco with a Clutch
If you have other transportation, I would just take it apart do as you plan and then use a micrometer and measure it.
Can't wait to hear more about your intake and injector work.
There was a cherry black 95 D1 5 speed in Richmond Virginia, I thought it was Richmond California 18 miles away. Mint interior with a driveline noise, tranny, transfer or what was wrng? Priced reduced to $1,500. I got the green light to buy it until I found out the wrong Richmond.
Joey; the old Lockheed ***** has a .875" bore, inside was like new except at the plunger end with the boot all FUBARED up big time by who ever installed it allowing water to make it rusty and fail at the cup. Autohauseaz pulled thru for me on the late friday order as I had the big brown box (UPS) delivery at 9:20 AM monday instead of thursday. It didn't stop raining until 11 AM then it took an hour to install and bleed plus removing the stands as it started pouring big time again just as I finished. No I couldn't wait as I was running out of time to smog it. All's good on the road test. Tuesday a hard highway run to season the one new cat plus burn clean the old cat and the combustion chambers then a smog sniff at a friends shop before the "Test Only" smog test. Idle HC of 100 PPM max I had 10 PPM, 2500 rpm test 180 PPM max I had 11. CO% at both speeds measured at 0.00% , Co2 14.30% idle with 14.50% at 2,500 rpms.
My tune up with these Bosch injectors plus I still had the RPI Tornado chip installed. I need 15 minutes without another rain storm to reinstall the cold ram air, reset the TPS voltage as well install the spare MAS meter I set to RPI's voltage specs. The best part on the smog machine tach when done I had a clean idle so dragging the clutch got a reading of 320 rpm's until compression stalled the motor it idled smooth not missing a beat.
My son's BMW adding bigger Mazda disc brakes a machine work upgrade projects the next asap rush item as his college classes started again. When I have some time (pull it out of my azz I guess) i'll send some photos of the intake and injector cleaning build project. The motor likes these Bosch injectors plus being balanced to within 0.4% of each other. Way tighter than production injectors and into racing flow % in tight balance numbers. Anything above a dead stop just dump the clutch in 2nd and throttle away no problem now. i'm impressed with this intake addition, injector change and build project. Winter is a bad time to start a project especially the wet winter this year we're having, days became months of delays on this project. I was thinking of this intake mod the past 15 years and all the more after the 4.6 install. This reduced the max TQ rpm's by 11 mph in 5th gear unless you can drive at 87mph at the stock 3,100 rpm peak TQ rpm zone. Carl.....=o*&o>.........
