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#1
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For the very first time in some 60 years of driving, I ran out of fuel
yesterday. Der Klunker ('81 300SD) suddenly started sputtering and stumbled to a halt, luckily in a parking lot. Opened the hood. Sure enough, no fuel in the sight glass. A couple of kind gentlemen helped me push the car out of the way and in due course road service arrived with two gallons of diesel fuel. They were concerned that it would be very hard to get a diesel that has been sucking air to start without a lot of work. If this had been my boat they would have been entirely correct. But this car has a built-in priming pump on the engine. A few strokes on the pump, the sight glkass filled up and a few more strokes later a hissing sound confirmed that the byapass valve on the injectopr pump had openen meaning the pump was now ready to send fuel with no air to the injectors. She started with a couple of turns on the starter. Now, why can't boat diesel engines be set up like that? I live in terror of the boat engine sucking air becaise it will stop and bleeding the system in a seaway or even at the dock is an exercize in contortion and I don't pretzileize so well anymore. |
#2
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Gogarty wrote:
.... Now, why can't boat diesel engines be set up like that? I live in terror of the boat engine sucking air becaise it will stop and bleeding the system in a seaway or even at the dock is an exercize in contortion and I don't pretzileize so well anymore. My old Westerbeke was self bleeding. My new Yanmars aren't, but I've never had a problem with them; they don't seem to need bleeding even after changing the fuel filter. |
#3
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Running out of fuel when "on the high seas" has a lot more problems than
air in the fuel lines! And your boat's fuel tank is a lot larger than 18 gallons - as you well know when the fuel bill is presented. |
#4
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Gogarty wrote:
For the very first time in some 60 years of driving, I ran out of fuel yesterday. Der Klunker ('81 300SD) suddenly started sputtering and stumbled to a halt, luckily in a parking lot. Opened the hood. Sure enough, no fuel in the sight glass. A couple of kind gentlemen helped me push the car out of the way and in due course road service arrived with two gallons of diesel fuel. They were concerned that it would be very hard to get a diesel that has been sucking air to start without a lot of work. If this had been my boat they would have been entirely correct. But this car has a built-in priming pump on the engine. A few strokes on the pump, the sight glkass filled up and a few more strokes later a hissing sound confirmed that the byapass valve on the injectopr pump had openen meaning the pump was now ready to send fuel with no air to the injectors. She started with a couple of turns on the starter. Now, why can't boat diesel engines be set up like that? I live in terror of the boat engine sucking air becaise it will stop and bleeding the system in a seaway or even at the dock is an exercize in contortion and I don't pretzileize so well anymore. Mine is. |
#5
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posted to alt.auto.mercedes,rec.boats.cruising
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![]() "Gogarty" wrote in message ... For the very first time in some 60 years of driving, I ran out of fuel yesterday. Der Klunker ('81 300SD) suddenly started sputtering and stumbled to a halt, luckily in a parking lot. Opened the hood. Sure enough, no fuel in the sight glass. A couple of kind gentlemen helped me push the car out of the way and in due course road service arrived with two gallons of diesel fuel. They were concerned that it would be very hard to get a diesel that has been sucking air to start without a lot of work. If this had been my boat they would have been entirely correct. But this car has a built-in priming pump on the engine. A few strokes on the pump, the sight glkass filled up and a few more strokes later a hissing sound confirmed that the byapass valve on the injectopr pump had openen meaning the pump was now ready to send fuel with no air to the injectors. She started with a couple of turns on the starter. Now, why can't boat diesel engines be set up like that? I live in terror of the boat engine sucking air becaise it will stop and bleeding the system in a seaway or even at the dock is an exercize in contortion and I don't pretzileize so well anymore. Well you can make things a little easier on yourself: - Racor has a fuel filter with a built-in hand pump -or you could install an electric pump in the fuel system -only open the bleed screw on the injector pump, at least as a first try. My experience (with Yanmars) is that if you pump fuel to the injector pump the engine will start, run rough, and then operate normally. No need to bleed injectors. -my other experience with Yanmars is that the hand lever on the engine fuel pump is pretty useless for bleeding, hence my addition of the Racor filter with pump. |
#6
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In article ,
Gogarty wrote: Now, why can't boat diesel engines be set up like that? I live in terror of the boat engine sucking air becaise it will stop and bleeding the system in a seaway or even at the dock is an exercize in contortion and I don't pretzileize so well anymore. Simplicity, probably. Personally, I can prime our Yanmar in a few minutes now. It all came together when I realized the pumping happened when the lever was released, which is counter-intuitive. Of course, we're blessed by a designer who arranged the engine room so I need only open one of the doors. See http://members.dca.net/jerelull/Xan-ER.html and drool over our access. -- Jere Lull Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD) Xan's Pages: http://members.dca.net/jerelull/X-Main.html Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/ |
#7
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"Gordon Wedman" wrote
-my other experience with Yanmars is that the hand lever on the engine fuel pump is pretty useless for bleeding, hence my addition of the Racor filter with pump. Our Yanmar installation has an electric pump to draw fuel up from the tank. Would a bypass switch to activate this pump make bleeding easier? Is the hand pump on the engine a type that will pass fuel through if pressurized from upstream? -- Roger Long |
#8
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On Wed, 14 Dec 2005 13:17:52 GMT, "Roger Long"
wrote: Our Yanmar installation has an electric pump to draw fuel up from the tank. Would a bypass switch to activate this pump make bleeding easier? =================================== That's a fairly commom practice on larger power boat diesels. It makes filter changes a lot easier and removes uncertainty about the ability to get started again. My setup uses a Walbro 6802 fuel pump with a switch and a couple of small bypass valves on each engine. I have a third Walbro that can be valved to bypass the backup generator, thus serving as a dockside fuel polishing system by constantly circulating fuel through the Racor filters. |
#9
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#10
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