I've just fitted new cam seal, tensioner, belt & w'pump to my B230F. NB timing was out by at least 2 teeth advanced on cam. No wonder it wouldn't go. The tensioner spring was quite a battle, but I got it. The after-market water pump cheapskated by not having new studs to mount the pulley/fan assy. It did have new bolts, washers and nuts, but was one nut short. New seal and gsk seemed ok.

What does the horizontal water pipe along the exhaust side of the motor go to? It came "totally" loose, & I can't see/reach under the manifold to know if I need to remount it back there somewhere, & I don't want to take the manifold off just to check?

According to the haynes manual, it goes to the car heater

there is a bolt directly under the most rear manifold pipe holding it to the block

Two heater hoses coming out of the firewall. The upper one goes to the head under the intake manifold. The lower one goes to the metal pipe that runs alongside the exhaust manifold. The connection for the lower hose is between the head and the firewall using a worm-gear hose clamp.

I have heard of people making that connection without removing the head but I've never done it or seen it done.

Edit: I guess the best way to get at that hose connection is to disconnect it from the firewall. Then remove the metal pipe from the water pump and loosen it from the engine. Then, with the whole assembly off the car, the hose connection can be made easily.

Ta, then I'll presume the rear bolt is missing and not worry about leaks from it coming adrift.