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Post by Andyberg on Jun 25, 2018 13:02:50 GMT
Out on a trip yesterday when my motor gave up the ghost, was running spot on, tickover suddenly dropped to just above stalling then it wouldnt restart, just pumping out loads of white diesely smoke! No mechanical noises or bangs etc
Managed to walk back to marina and grab my daughters boat, breasted up and returned to base for investigation!
Diesel flowing no issues, thro filters, diesel pump & getting to injectors?
Any diesel experts want to hazard a guess as to what could possibly have happened?
Im thinking mebbe an injector issue ?
motor..Ruston & Horsby 2YDA
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Post by lollygagger on Jun 25, 2018 13:12:23 GMT
I used to work for Rustons but they made mahoosive gas turbines when I worked there. Hope that helps.  |
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Post by Andyberg on Jun 25, 2018 13:14:03 GMT
I dont think its anything to do with the turbine!🙄
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Post by Telemachus on Jun 25, 2018 13:23:43 GMT
Advice, for starters. I thought 'white exhaust' was a basic symptom of something like water getting in through a gasket. Stabbers is one diesel expert, TD t'other. Have you asked on Canalworld? White smoke when trying to start is unburnt diesel. Which suggests fuel is being injected. Can you tell if the compression is normal? Maybe a stuck valve or something. How many cylinders does it have (knowing nothing about RH engines)? |
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Post by Telemachus on Jun 25, 2018 13:28:36 GMT
Oh I see it has 2 cylinders so unlikely to be a valve unless the other cylinder was already low on compression.
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Post by Telemachus on Jun 25, 2018 13:32:30 GMT
Obvious point I know, but decompression levers in the right place?
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Post by lollygagger on Jun 25, 2018 14:57:47 GMT
Obvious point I know, but decompression levers in the right place? I asked that as to me it doesn't sound like it has much compression. But then I have zero diesel knowledge. He says it sounds the same as it always has and no to decompression levers. It conked out when warmed up and pottering along. |
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Deleted Member
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Post by Deleted on Jun 25, 2018 15:01:14 GMT
I reckon the fucking fucker is fucking fucked.
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Post by Mr Stabby on Jun 25, 2018 16:01:41 GMT
Difficult to diagnose without seeing it although as TellyMackus said, white smoke indicates incomplete combustion of diesel. In that it suddenly started happening when the engine was up to temperature and running normally then it is likely to be a compression issue and in the first instance I would be looking at exhaust valves.
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Post by TonyDunkley on Jun 25, 2018 16:03:20 GMT
Out on a trip yesterday when my motor gave up the ghost, was running spot on, tickover suddenly dropped to just above stalling then it wouldnt restart, just pumping out loads of white diesely smoke! No mechanical noises or bangs etc Managed to walk back to marina and grab my daughters boat, breasted up and returned to base for investigation! Diesel flowing no issues, thro filters, diesel pump & getting to injectors? Any diesel experts want to hazard a guess as to what could possibly have happened? Im thinking mebbe an injector issue ? motor..Ruston & Horsby 2YDA From your description of how it's acting, and what it did, you can rule out injectors. The quantity of smoke/unburnt fuel from the exhaust when it's being turned over in the video clip points to either the injection timing having slipped or sudden loss of a lot of compression. Turning over on the starter it doesn't sound like lack of compression and you would have to be very unlucky to lose enough compression to cause problems on both cylinders at the same time. First thing to look at and check are the injector pump mounting/clamping nuts, . . check that they're all tight and then look for some scribed marks on the pump mounting flange and the timing case to see if they're still lined up. |
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Post by TonyDunkley on Jun 25, 2018 16:08:42 GMT
Advice, for starters. I thought 'white exhaust' was a basic symptom of something like water getting in through a gasket. Stabbers is one diesel expert, TD t'other. Have you asked on Canalworld? I'm not easily offended, but I do draw the line at any sort of comparison with a fucking idiot who just thinks he knows what he's talking about. |
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Post by peterboat on Jun 25, 2018 16:15:06 GMT
It sounds like a head gasket, but to be honest but I know nowt about these engines, Tony is your man do what he says and report back
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Post by Mr Stabby on Jun 25, 2018 16:22:07 GMT
Advice, for starters. I thought 'white exhaust' was a basic symptom of something like water getting in through a gasket. Stabbers is one diesel expert, TD t'other. Have you asked on Canalworld? I'm not easily offended, but I do draw the line at any sort of comparison with a fucking idiot who just thinks he knows what he's talking about. Interesting then that you completely misdiagnosed the fault with Ricco's engine whereas I got it completely spot-on. |
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Post by naughtyfox on Jun 25, 2018 17:00:27 GMT
It sounds like a head gasket So, my line of thought was not entirely 100% out. Head gasket means water getting in, eh? Sorry Mr TD, I knew it was flying close to heresy. Anyway, if I can help out with fetching spare parts, etc. give a shout. Bell ringing practice now... |
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Post by Andyberg on Jun 25, 2018 17:05:32 GMT
It sounds like a head gasket So, my line of thought was not entirely 100% out. Head gasket means water getting in, eh? Its aircooled, so unless my boats also sunk without me noticing, theres no water to get in!😉 |
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