earlybird
Well-Known Member
Yes, fully inclusive
URGENT ! HOW TO STOP A DIESEL ENGINE ?!
- Thread starter Babylon
- Start date
Poecheng
Well-Known Member
Had similar but the slight loosening meant the earth return wasn't working properly - clean up etc and all was good.
LittleSister
Well-Known Member
Here you go - Beta (all models) manual shows what it looks like, and text at bottom of the page indicates where it is (fwd end of motor, mid-level, starboard, unless you've got 75hp or upwards):
OM 221 20031 HE REV30 0322
Elessar
Well-Known Member
Correct.
Blocking the intake is a terrible idea on anything but a sewing machine engine.
ean_p
Well-Known Member
Why is this?
Babylon
Well-Known Member
Source of problem found - the stop button to solenoid connection in the multi-wire connector box behind the engine had become corroded - now all spades etc scraped clean and coated with vaseline, and the loose rubber boot covering now properly sealed with tape.
Why marine diesels have wiring connectors etc in vulnerable-to-wet and hideously inaccessible places is beyond me.
Why marine diesels have wiring connectors etc in vulnerable-to-wet and hideously inaccessible places is beyond me.
FairweatherDave
Well-Known Member
Useful thread. Thanks all. Will find my stop lever on next visit to the boat..... (although my last thread on this subject was trying to get my beta to start having dislodged one of those multi-plugs.)
Boater Sam
Well-Known Member
I always find how to stop an engine before I start it. It can get embarrassing otherwise!
Elessar
Well-Known Member
Because a decent size diesel will ingest anything near its air intake causing damage or injury.
If you have a tiny engine you may get lucky and it may work. But why learn bad practice? If an engine runs away you need to react quickly.
CO2 fire extinguisher every time.
Elessar
Well-Known Member
This is useful of course. But if a diesel runs away the stop lever won’t work. It stops the diesel fuel but when it runs away it is burning its own oil.Useful thread. Thanks all. Will find my stop lever on next visit to the boat..... (although my last thread on this subject was trying to get my beta to start having dislodged one of those multi-plugs.)
ean_p
Well-Known Member
Oh really...!?
Elessar
Well-Known Member
Do you doubt it then? If you do you are wrong.
ean_p
Well-Known Member
Wrong about what ?
Elessar
Well-Known Member
Don’t know unless you answer the question.
jamie N
Well-Known Member
This looks fun, but I wouldn't want to put my hands anywhere near it, however this one makes it look as if it's had a good day!
Stemar
Well-Known Member
Did that today, fault finding. At least it's easy to get at for me, as my access is from the rear of the engine, which makes impellor and fan belt maintenance interesting. New filter, plus a bulb pump to simplify bleeding fixed my problem. Two oil filters on board, but no fuel filters.
ean_p
Well-Known Member
You asked me if I doubted it. Well it would depend upon what it was. Then I could tell you if I doubted it or not. But let me say that the last 8 reasonably sized diesels that I was responsible for (driving platform and O&G terminal standby generators and fire fighting pumps) all had simple inlet closure devices fitted as standard and expense was of little consideration when compared to safety and reliability. A days shutdown would cost in excess of $10 million! I don't doubt that CO2 injected into and flooding an engine in sufficient volume to stop ignition until the engine was at stand still would work. But it brings issues with it including a very high risk to personnel using it in confined areas. But hey you beat the drum for whatever, who gives one?
KompetentKrew
Well-Known Member
I've always fancied a butterfly valve on my diesel so that I could be sure of shutting it down quickly were a runaway to occur, but have never gotten around to it. Realistically it's another expense, we can't prepare against every eventuality and the vast majority of leisure boats (I bet over 99%) don't have them.
In the absence of a butterfly valve on the air intake, and in the sudden and unexpected case of diesel runaway, a CO2 fire extinguisher seems like a very good solution - it should be effective at stopping the engine, at least.
In the absence of a butterfly valve on the air intake, and in the sudden and unexpected case of diesel runaway, a CO2 fire extinguisher seems like a very good solution - it should be effective at stopping the engine, at least.
NormanS
Well-Known Member
When diesel engines are used anywhere that there is a danger from inflammable gases, for example in the oil and gas industry, the engines are required to be fitted with Chalwin valves. In the event of gas entering the engine air intake, causing the engine to race out of control, the valve automatically shuts off the air intake, stopping the engine. So not only does it work, it is a legal requirement.
Elessar
Well-Known Member
I said that impromptu devices to block the air intakes of Diesel engines was a bad idea.
Because the facts wouldn’t be known and injury or damage could occur.
You made a derogatory response to that.
I questioned that.
You tried to prove me wrong by saying that it was possible to stop a Diesel engine with a custom built throttle.
Just what has that got to do with my statement?
