Lucas alternator replacement

[Raymondh]

We have one of last built 1974 13 ton Hillyards fitted with a Tempest 3 1/2 litre diesel engine and have just noticed a significant fracture in one of the securing flanges of the alternator. Clearly this needs replacing urgently. Since this is the original Lucas alternator, operating through a split diode charging system with a positive earth circuit, finding a suitable replacement presents a problem. Does anyone know of a company in the Solent area who may be able to supply a suitable alternative alternator.

<hr width=100% size=1>

 

[halcyon]

Look up your local LSUK depot.
Which model do you have?
Thought alternators were standardised on neg earth ? cannot remember a pos earth one, but then it's a long time ago now.


Brian

<hr width=100% size=1>

 

[nordic_ranger]

If the alternator is running OK electricaly why not take it to your local Metalworker and have the fracture welded. Save on the cost of a new alternator. Just a thought.

Jim.

<hr width=100% size=1>

 

[Gunfleet]

better make sure he's going to gas weld it before you hand it over!

<hr width=100% size=1>

 

[ongolo]

Not sure I understand why it should be gas welded?

Surely TIG welding is the way to go!

Also I am not sure where the crack is, is it one of the mounting points? (not critical) or is it where a bearing is seated? Either way it can be completely repaired with some care. If the area of the bearing seat is affected, also no problem, put it in a lathe, have thin bushing made and use a bigger or smaller bearing as required.

I am not sure about Lucas, but Bosch uses a plasic bush to cushion the noise of the running bearing. It would do no harm to have a teflon bushing turened (or Veconite, or Vesocline) to compensate for changed bearing housing size.

Bosch proves that this is viable technology.

Fixe it dont ditch it.

regards ongolo


<hr width=100% size=1>1000 dream about it, 100 talk about it, 10 start and 1 completes it

 

[Talbot]

Furneaux Riddal in Portsmouth are probably the best place to go near portsmouth

<hr width=100% size=1>

 

[halcyon]

If it's Lucas, it's probable that the end casting of one from the scrap bin will fit, or scrap yard, far better than trying to repair it and chaeper.

Brian

<hr width=100% size=1>

 

[Gunfleet]

Of course, if you've taken the trouble to take it apart first TIG would be right. I was just warning - when you do electric welding on a car you have to disconnect the alternator for fear you'll fry it (which a friend of mine actually did once in front of me while I was a youngster). If you're welding a lug on the alternator you can't disconnect it so best choose a method with no electrical input. But I think better yet is halcyon's idea - pick up the part from a scrap bin. One last idea is to give it to an auto electrician. Our local bloke charged £60 to revive my cruddy, rusted and stuck Yanmar (actually Nippon Denso) starter motor from scrap to 'as new' condition. God knows what Yanmar would have wanted for a new one.

<hr width=100% size=1>

 

[Gunfleet]

Of course, if you've taken the trouble to take it apart first TIG would be right. I was just warning - when you do electric welding on a car you have to disconnect the alternator for fear you'll fry it (which a friend of mine actually did once in front of me while I was a youngster). If you're welding a lug on the alternator you can't disconnect it so best choose a method with no electrical input. But I think better yet is halcyon's idea - pick up the part from a scrap bin. One last idea is to give it to an auto electrician. Our local bloke charged £60 to revive my cruddy, rusted and stuck Yanmar (actually Nippon Denso) starter motor from scrap to 'as new' condition. God knows what Yanmar would have wanted for a new one.

<hr width=100% size=1>

 

[iangrant]

Talk to Superstart in Southbourne - 01243 379865 - they have just about all marine (and auto) alternators in stock.

For refurbs drive to Cockleburry farm past the pub on the left at Chidham

<hr width=100% size=1>

 

[iangrant]

Talk to Superstart in Southbourne - 01243 379865 - they have just about all marine (and auto) alternators in stock.

For refurbs drive to Cockleburry farm past the pub on the left at Chidham

<hr width=100% size=1>

 

[iangrant]

Well? Any luck - feedback is nice, just to see how you got on!

Ian

<hr width=100% size=1>

 

[milltech]

I was given this information as a company that this year suppled a Lucas CAV alternator for a 1955 vintage boat, mind you the price wasn't cheap.

LS UK Southampton

Atlantic works

Oakley Road

Southampton

023 80777111



<hr width=100% size=1>John
http://www.on-line-marine.com

 

[TonyBrooks]

Lucas 10 & 11 ACs (the ones with the seperate regulator (4TR) and warning lamp control) did come in pos. and neg. earth and I think both used the same end brackets, the worst you might have to do is to open out a hole.

Also I am fairly sure the ACRs (the ones with a big plastic cover at the brush end) were available in pos earth for a very short while. In marine use I would expect it to be an 11AC.

Tony Brooks

<hr width=100% size=1>