spot the boatman!

[atoll]

Originally Posted by boatman61

Nope.. to Mazarra for the drive shaft for the raw water cooling.. drifted in under sail into the marina..

bummer!

there are lots of machine shops etc if you follow the river up into town,then cross over into the industrial area where all the shipbuilding is in mazzaro.

though it might be easier to replace the complete pump if the bearings are shot as well and the pump worn

[boatman61]

Seems I'm in luck.. there's a John Deere agent about 150km from here so when the mechanic turns up tomorrow I'll get him to give em a call and order whats needed.. if they have it.. but its a tractor engine so should be straightforward enuf..

[SaltyMonkey]

Trakktor ngins work bettr nayway.

Well, blooper my timbers, boaty has the snails up. Thats a first.

Do you want us to call you a tow?

[DeepFrz]

Tractor engines don't have raw water pumps.

[atoll]

do you mean the salt water pump or the fresh water circulating pump ?

big difference!
as the salt water impellor pump is probably a jabsco pump and not something that would be on an un marinised engine and best sourced from jabesco or Johnson pumps.

the fresh water pump would have to come from the engine manufacturer ie john deere

[DeepFrz]

atoll, you said it so much better than I.

[SaltyMonkey]

atoll is sharp as a knife on observn that.

[boatman61]

Lets put it this way... theres 3 wheels the fan belt goes round.. one is the alternator.. the other is the starter motor.. the one thats bust is the one at the bottom of the engine.. think its called the main drive shaft.. that works the pistons.. the impellor is bolted to the front of that pulling the raw (salt) water up and pushing it through the engine.. I could take a picture for you..

[DeepFrz]

Oh, is this my father's "John Deere" engine? Picture please. But its doubtful, as atoll says, that the salt water pump will be found at a JD dealership. Unless of course it deals in JD Marine engines.

[atoll]

Originally Posted by boatman61

Lets put it this way... theres 3 wheels the fan belt goes round.. one is the alternator.. the other is the starter motor.. the one thats bust is the one at the bottom of the engine.. think its called the main drive shaft.. that works the pistons.. the impellor is bolted to the front of that pulling the raw (salt) water up and pushing it through the engine.. I could take a picture for you..

a picture is worth a thousand words lol!

generally on the front of an engine, the three pulleys are,starting at the top,

coolant/fresh water circulation pump
,alternator
,crank shaft/main drive shaft.

on some marine conversions I have seen impellor pumps mounted with a flexible drive from the crank pulley as you have described.

{generally impellor pumps are driven from one of the cam shafts,independent of the fan belt or crank pulley)

any way whatever the conversion it is unlikely that you will get a spare for an impellor pump from john deere,as this sounds like a third party marine conversion.

jonhson or jabesco might be a better bet,the pump part number is generally stamped into the bronze front cover.

another solution might be just to bypass the pump and fit an electric pump.

24liter per minute constant running bait well pump would be your best bet,which you should be able to find at most chandlers,about 180 euro if you have no luck with john deere.

will need wiring to the ignition circuit so it switches off when the engine stops,and you will need to keep an eye on engine temp at higher revs.

I have this system on my generator which is 30 hp and uses a 12LPH electric pump.

you might try lombardini marine as they have the impellor to crank pully set up on some of their smaller engines

[belizesailor]

Originally Posted by boatman61

LOL... by request Zee.. no ratting involved..
My own fault.. shoulda checked instead of taking a mans word..

Ha, I took the dock crew's word on a fuel top up decades ago...ran outta fuel before before the marina was outta sight...never again.

[DumnMad]

To get that much knowledge Atoll you must own about 4 boats. Great post!

[weavis]

Spoke to Phil this morning. Waiting on good news hopefully regarding bits and pieces.

For a shakedown cruise this has not been a bad one.

Aint boating grand!

[brutb]

Boaty, we are pulling for you to get this little water pump problem solved and be on your merry way to Portugal ASAP. We know if need be you will be sailing as much as possible. Keep us informed as to your progress or we may be forced to send Atoll to assist. LOL I can just see the 2 of you in the engine room deciding which is what and what is which and then agreeing you need another drink to figure it out.....Fairs winds Boaty

[dpddj]

I understand there are a lot of folks heading north from Africa. You could pay for your trip by picking up a few passengers.
Sad desperate, situation these people are in.
Safe travels westward.