Engine: 164 2978cc: Water pump removal problems

[Terzoed]

The water pump needs replacing therefore I have spent a couple of hours today getting to the point when I can remove the pump. However I'm having difficulty trying to work out how to remove the (metal) pipe that comes out of the pump and into the right hand side of the block. I can't tell how it's secured into the pump.

Short of taking the pipe directly off from the block, which would mean removal of the manifold, I can't see how to remove the pipe.

Any help will be gratefully accepted

[Clan]

Originally Posted by Terzoed

The water pump needs replacing therefore I have spent a couple of hours today getting to the point when I can remove the pump. However I'm having difficulty trying to work out how to remove the (metal) pipe that comes out of the pump and into the right hand side of the block. I can't tell how it's secured into the pump.

Short of taking the pipe directly off from the block, which would mean removal of the manifold, I can't see how to remove the pipe.

Any help will be gratefully accepted

There should be a small nut and bolt securing the red heater return pipe to the back of the water pump .. maybe it is covered with dirt .

[Terzoed]

Originally Posted by Clan

There should be a small nut and bolt securing the red heater return pipe to the back of the water pump .. maybe it is covered with dirt .

Thanks ever so much, I'll have a look in the light

[140]

The nut and bolt is used on the B21/23 engines. On the B20/B30 engines the heater pipe is held in by a bracket on the metal pipe which uses one of the water pump retaining bolts.
Remove all the pump bolts and and release the it away from the block and normally the pump can be released by twisting it on the heater pipe to release the rubber seal between the pipe and pump.

[Terzoed]

Originally Posted by 140

The nut and bolt is used on the B21/23 engines. On the B20/B30 engines the heater pipe is held in by a bracket on the metal pipe which uses one of the water pump retaining bolts.
Remove all the pump bolts and and release the it away from the block and normally the pump can be released by twisting it on the heater pipe to release the rubber seal between the pipe and pump.

Likewise, thanks for your advice

[Derek UK]

You will also have to remove the pipe which plugs into the pump from the bottom. There is a bolt through a tab into the block tucked away vertically under the pump adjacent to where the pipe turns a right angle.
A smear of silicone grease on the new seals will help when refitting.