ColinB

Roger.
Water pump pliers have featured before in this forum. Wally has it nailed but we are talking about industrial/agricultural pumps here, not automotive ones.

Water pump pliers (UK) = Channel lock (US). AKA Chicken leg pliers, Gland pliers (Electricians)

Colin. 89GT

Jim M.

In the aviation field there often called "Bore Hogs" Don't know where that came from. I also have a monkey wrench and a Ford wrench in my tool box.

Jim Mayzurk
93 GTS 5-spd

Bill Ball

Wow. Packing, just like in the faucets in older residential plumbing. Thanks, Wally.

Imo000

I’ve successfully used two long carpenter’s clamps (the quick adjustable types) to change the end tank on a BMW 750. They would work on the 928 too. Any hardware store should have them for ~$15-up/each. Just make sure they are long enough to reach from one end tank to the other.

docmirror

The problem with that approach is your compressing the core and the flange all at once. What you want, is to transfer the compression from the tank to the end flange, and not move or touch the core. It might work, but you might also bend the flange, or break a line in the core to the flange. Better is to just use two 2X4s on the side of the flange, and one on top of the end tank.

Doc

H2

I may be wrong but I'm thinking that the term Water Pump Pliers (i.e., Channel Lock pliars) came from its early use on Model A Ford water pumps. I've had a couple of Model A's and the "channel lock" pliars work perfect for this. Model A's are simple to work on. It's even possible (in an emergency) to use a hard (but pliable) bacon rind as a temporary main bearing. I used to rev the 40 lb flywheel to top RPM (not much) and pop the clutch on the stock 4 banger. Either the tires would smoke, an axle would break, or the transmission case would explode. I've experienced each of these scenarios various times...but usually the tires smoke. I tried for a year once to blow up an A model engine and never was able to.

Harvey