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#1
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Solo 2350D won't start
Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill
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#2
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Solo 2350D won't start
On Friday, March 20, 2020 at 6:42:42 PM UTC-4, BillT wrote:
Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill Check for blocked or collapsed fuel lines. UH |
#3
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Solo 2350D won't start
On Friday, March 20, 2020 at 3:42:42 PM UTC-7, BillT wrote:
Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill Check fuel pump for outlet pressure (not just confirming flow, actually measuring the pressure and compare to spec sheet). |
#4
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Solo 2350D won't start
Does sound like a intermittent fuel delivery problem.
How do you start a turbo on the ground? Thought they were only windwill starts? Don't know never have had one. |
#5
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Solo 2350D won't start
On Fri, 20 Mar 2020 15:42:39 -0700 (PDT), BillT
wrote: Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill About 10 years ago I had a similar issue with my Ventus cT (same engine, but direct drive). Problem turned out to be the impulse fuel pump diaphragm that had gotten stiff with age. A simple job to replace (provided you can get the parts). 10 years ago parts were not an issue, now, I am unsure. I so have photos of the replacement procedure if interested. Bob |
#6
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Solo 2350D won't start
On Friday, March 20, 2020 at 6:42:42 PM UTC-4, BillT wrote:
Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill Is the fuel tank vented properly? Uli 'AS' |
#7
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Solo 2350D won't start
At 01:50 21 March 2020, Bob Gibbons wrote:
On Fri, 20 Mar 2020 15:42:39 -0700 (PDT), BillT wrote: Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill About 10 years ago I had a similar issue with my Ventus cT (same engine, but direct drive). Problem turned out to be the impulse fuel pump diaphragm that had gotten stiff with age. A simple job to replace (provided you can get the parts). 10 years ago parts were not an issue, now, I am unsure. I so have photos of the replacement procedure if interested. Bob I think the 5 year check has a replacement for the diaphragm ,so they are an obvious known fault. |
#8
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Solo 2350D won't start
How do you start a Turbo engine on the ground to work on it?
Can you? Can you Hand Prop it? It would be nice if they had a fitting to attach a 1/2" drill motor to turn it over. I, obviously, know very little about these engines, just curious. |
#9
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Solo 2350D won't start
On Friday, March 20, 2020 at 6:42:42 PM UTC-4, BillT wrote:
Our Duo's turbo has suddenly stopped working. It spins up ok at 55Kt when decompressed & continues windmilling when the decompression is released. The engine starts after 2 - 3 seconds, runs for 2 seconds then cuts out. After 1 - 2 seconds it starts again & the sequence is repeated. It's as if the rpm cut out is operating (which happens if the revs exceed 6500) but I'm certain that's not happening & have been careful to ensure the speed doesn't exceed 60Kt. Any advice will be appreciated. Thanks, Bill I have made new diaphragms for a Mikuni pump from 5 mil mylar (artists supplies) Use the cast plate as a template and melt the screw holes with a soldering iron. JMF |
#10
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Solo 2350D won't start
John does the mylar resist the effects of the fuel or do you find you have replace that diafram frequently?
Dan |
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