Diesel Motor - salt water intrusion

We will tolerate no digressions into anchor scope on this thread. It is patently obvious that a D7 on an all-chain rode which is veered to 1.2 X root boat's displacement is perfectly adequate for the Eastern Solent on any Thursday in Lent.
 
Bollox! Nothing wrong with ST's that a little bit of TLC can't cure.

IMG_1606.jpg
 
56 years old with God alone knows how many running hours (and don't reply "probably not a lot") and still running.

Sorry Christmas (what kind of name is that?) hope we haven't hijacked your thread. If you flushed your engine out with fresh and filled, and I mean FILLED, it with oil and/or diesel you have a chance.
 
Bollox! Nothing wrong with ST's that a little bit of TLC can't cure

Not so. They were very like Seagulls. A good one just went on for ever, and seemed to thrive on neglect provided it was fed spark plugs and clean fuel. But get a bad one ..... /forums/images/graemlins/frown.gif /forums/images/graemlins/frown.gif /forums/images/graemlins/mad.gif /forums/images/graemlins/blush.gif and the trouble was, like Seagulls there were too many bad ones around.

And it wasnt just lack of TLC. In every batch of new motors from the works, there would be one or two that just did not run properly from day one. Bad engineering? Lack of quality control? Nobody ever really found out.
 
What sort of engine? D7 has been mentioned. Is it a D7?

If it cheers you up any, I have a D12 in a boat we bought about 10 years ago. We bought the boat cheap because it had sunk. The D12 that was in it when it sank is still in there today. The engine was cold and not running when the boat went down and it was immersed for about 8 hours. The previous owner drained it, filled it with fresh oil (and the tank with fresh diesel) and turned it over by hand a few times then dumped the oil. He then did it again and strted the engine, let it run a few seconds before dumping the oil. Then he did it again but ran it until it got warm - and them dumped the oil.

The alternator (being in the flywheel) and all the other electrics went green and furry. We had the starter rebuilt by an auto-electrician and I re-wired the switch panel myself. I put a car alternator on the nose of the engine as the spares from BMW were obscenely expensive and the alternators were pretty cr4p anyway!

About 3 years ago, I took the head and barrel off the engine and replaced the big end bearing. I could see the main bearings through the hole and they looked fine so I left them. There was no visible trace of rust on any ferrous parts inside the engine.

By all means PM me if you like.

Also, there is a good BMW D7 and D12 website run by George Huxtable who has collated a great deal of useful info on the marque:

http://wavelength30.pandela.org/BMWD7.htm

and there's a Yahoo forum for them too!

Good luck!

We bought the boat assuming the engine was scrap but it ran pretty well so we thought we'd leave it a season and save up for a new one.
 
Christmas does not say what Bmw motor. It may be a D150 out of a motor boat. 6 Cylinder light weight made by the Italian company whose name escapes me at the moment. Lot of these sold on Australia in the 80's in competition with Volvo AQA 40's. I think they might be a bit light for a mooring block.
 
I disagree entirely about the anchor idea as IMHO an oddball engine is definitely the best. You see a deceased colleague used to eulogise about the virtues of the Yanmar 1GM10 but I have learned to absolutely detest the infernal things. What happens is that the OEM exhaust elbow rusts but the tightwad other owner neglects this until the exhaust port also rusts through spewing water into the crankcase. A new head with valves costs about £800 and the elbow is another £200 at the dealers so the person with the failed engine resorts to thieving. He steals the head complete with injector, the lubricating oil pipes with banjo-bolts and whilst he is at it he takes the seawater pump as well. A good £1500 worth of parts at a rough guess. The police are not interested and the silly newspaper describes the thefts as being from a Yamaha engine, GRR! (I was highly sceptical about how the secretaries shorthand would "play back" and I was not wrong! ) If the town where one lives has been turned into a Gulag as a result of "problem people" being bused-in by the council one needs a Non Ubiquitous Engine with parts that won't fit anything else! Yanmar isn't it! Actually a great deal of the UK now has Gulag status but the devil finds work for idle hands. In fact the county slogan "One and All" presumably means "We rob one and all". Bitter? of course I am, I am very bitter indeed.
 
Last edited:
Avocet said:
Yes they were. Hatz still exists too but I've never tried buying anything direct from them.
Click to expand...

Bryco of Daimler Road used to sell spares for these and they quoted me £400 for a new D7 crankshaft. The engine was in a marine generator but gross neglect had ruined it. The lubricating oil was black and highly magnetic and it could be pulled around with a magnet. The magnetic drain plug was also well-loaded with swarf. These engines do not have an oil pump but instead a dipper is used. Frequent oil changes are needed and the magnetic drain plug needs cleaning every time. If this regimen is continued the engine will run for a great many thousands of hours. Not having a conventional oil pump and filter is a slight drawback as there is no way to have a low oil pressure light but industrial engines seldom have such things.
 
I had similar incident with a Gardner l4
Told to flush out twice with kerosene
And wash out with oil and fill with fresh oil
the engine has passed to a new owner and is getting the starter done
fingers crossed ?
 
You must log in or register to reply here.

Other threads that may be of interest

F
Keeping the salt dry.
Replies
11
Views
400
lustyd
lustyd

Share this page

Top