New Cranchi Zaffiro 34 Owner

[stelican]

The white plastic wrench looks like one used to open the lid on the seawater filter of a generator.

 

[FloridaCranchi34]

There is no seacock. That hose goes into your out-drive (the water pick-up is your out-drive). Standard for out-drive configurations (with some exceptions)

So can I safely remove the raw water pump from the starboard engine to rebuild it without sinking the boat??

 

[FloridaCranchi34]

The white plastic wrench looks like one used to open the lid on the seawater filter of a generator.

Good call! I'll test fit it to see!

 

[alt]

So can I safely remove the raw water pump from the starboard engine to rebuild it without sinking the boat??

NO! I can't recall exactly if the water pump is above or below the waterline.

If you want to remove the water pump, you'll need to 'plug' the intake hose (someone will be along shortly with diameter i'm sure). On my S37, if I remove the faceplate of the water pump, water does trickle in, which makes me believe the water pump is pretty close to the waterline. Can't confirm on the Z34, any time I changed the impeller, the boat was out of the water.

 

[FloridaCranchi34]

NO! I can't recall exactly if the water pump is above or below the waterline.

If you want to remove the water pump, you'll need to 'plug' the intake hose (someone will be along shortly with diameter i'm sure). On my S37, if I remove the faceplate of the water pump, water does trickle in, which makes me believe the water pump is pretty close to the waterline. Can't confirm on the Z34, any time I changed the impeller, the boat was out of the water.

Yeah, that didn't seem like it was possible. I'll replace it when I have it back on the trailer in a few weeks. That said, the on Z34 I think the water pump is well above waterline but if hauling it is easy, why not do it on dry land?

 

[FloridaCranchi34]

Good call! I'll test fit it to see!

Ding Ding! We have a winner! Thanks for the insight!

 

[alt]

You owe us all an afternoon out when we're in Florida!!

 

[FloridaCranchi34]

You owe us all an afternoon out when we're in Florida!!

Happy to comply! Come on over!

 

[FloridaCranchi34]

So I got the owners manual for a Z34 from the main Cranchi office in Italy. This is answering many questions but creating others.

The key is in fact the factory setup for an installed generator.
The gray switch panel next to it is the "microbilge pump" as mentioned.
There are three configurations for blackwater. The first discharges everything overboard via the sea cock in the lower hull in the shower sump area. My seacock there is plugged. Next is config A which gathers all gray and black water into the holding tank and then it's emptied via the fitting topside. Finally is config B which has a Y valve in the shower sump area. It discharges either the toilet directly to sea or to the holding tank, and all gray water over the side. Additionally, it has a macerator pump where mine is so that one can pump the holding tank overboard. However, it fails to mention how to actuate that pump. Is there a switch on the Y valve or something?

So I seem to have Config B, but modified.

More follow up: The push and hold to actuate switch under the cover is for the macerator pump in the engine bay. The pump runs when it is depressed, I just couldn't hear it before due to the air conditioning compressor running. There seems to be a valve for the output back in the transom area but I'll need to crawl back there to confirm. TMC electric toilet, after replacing the impeller in it, pumps to the holding tank and uses sea water.