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Hello Gringo new here but have enjoyed the reading sounds like you are tracking it down but if you need help these are the guys to talk to about HPDI motors. HYDRO TEC MARINE you need to talk to Wayne Worthy here is his web site http://www.yamaha-rebuild.com
Just explain your predicament and he will be more than helpful.Good luck
Robert
I actually did have a spider make a nest and screw up my trim/tilt switch in the binnacle two years ago.
Hey I hear ya. I grew up in East Texas.. The land of the "Dirt Dobber". Them suckers can get grit into places you just wouldn't expect it. Like a bunch of alien Navajo's on amphetamines or something.
I'll take a look at the controls. The throttle feels WAY too slack to me, anyhow and I am not sure if there is any adjustment in there. I throw the throttle through about 45 degrees forward before the motor starts revving up. I'd like to tighten that linkage or whatever it is up a bit anyhyow..
So, are you going to play the injector swap game? I would. Just to be sure the ECM is telling the injectors to fire, and to test for a bad connection. Congrats.. your narrowing it down.
Hello Gringo new here but have enjoyed the reading sounds like you are tracking it down but if you need help these are the guys to talk to about HPDI motors. HYDRO TEC MARINE you need to talk to Wayne Worthy here is his web site http://www.yamaha-rebuild.com
Just explain your predicament and he will be more than helpful.Good luck
Robert
Thanks, Robert.
I wrote them an email yesterday, asking how soon they could turn around six injectors. no reply yet.
I will probably remove the injectors this morning, and Fed Ex them to SOMEbody later today. I know it will take a week before I see them again, minimum. But I have other stuff to do to keep busy. My new compressor and all my air tools arrived yesterday! (I ordered them six weeks ago).
Now I have to figure out how to plumb all this air compressor stuff, black iron pipe, valves I didn't order and have to find locally, etc.
Got a small sandblasting cabinet with it. Gonna help to be able to blast spark plugs clean and blow compressed air through fuel filters, etc.
I would put the factory fuel filter under the cowl back on. As you can see, you can never have too many filters.
I don't think so. Why would I want to add a troublesome thing that swells up and leaks fuel? It's there for people who don't have boat filters between the outboard and the fuel tank. That's incredibly obvious.
I am thinking more along the lines of adding a 3 micron Racor after the 10 micron Racor, in the bilge of the Contender. Then I will have fuel that's been filtered to 3 microns before it hits the VST's 10 micron screen.
The only source of debris after the Racors is the two boost pumps. If the diaphrams come apart in one of those, it will either hang up the needle valve in the VST, or sink or float inside the VST, or get caught in the VST screen. In any case, the 28 micron stock filter between a 3 micron and a 10 micron is just window dressing. Not doing anything. The Racors will be easier to access, easier to drain, have more surface area and do a better job, and cheaper to replace.
By the way, I now have six injectors removed from the heads, waiting for me to pack em up and ship them off to someone who can test HPDI injectors.
When I took the cowling off this motor for the very first time, it was a big intimidating hunk of mysterious hi-tech doodads and thingamajigs that I would have been scared to even touch with a wrench.
I don't think so. Why would I want to add a troublesome thing that swells up and leaks fuel? It's there for people who don't have boat filters between the outboard and the fuel tank. That's incredibly obvious.
I am thinking more along the lines of adding a 3 micron Racor after the 10 micron Racor, in the bilge of the Contender. Then I will have fuel that's been filtered to 3 microns before it hits the VST's 10 micron screen.
The only source of debris after the Racors is the two boost pumps. If the diaphrams come apart in one of those, it will either hang up the needle valve in the VST, or sink or float inside the VST, or get caught in the VST screen. In any case, the 28 micron stock filter between a 3 micron and a 10 micron is just window dressing. Not doing anything. The Racors will be easier to access, easier to drain, have more surface area and do a better job, and cheaper to replace.
By the way, I now have six injectors removed from the heads, waiting for me to pack em up and ship them off to someone who can test HPDI injectors.
When I took the cowling off this motor for the very first time, it was a big intimidating hunk of mysterious hi-tech doodads and thingamajigs that I would have been scared to even touch with a wrench.
not anymore, bubba. not anymore.
Well, if it were my engine, I would reinstall the filter assembly under the cowl. The spin on Racor fuel/water separators in the bilge are not 100% effective, as they rely on gravity to separate the water from the fuel. Water can get by these filters if they are getting near capacity or the fuel they are filtering is churned up due to the boat running in rough seas. The engine filter you removed would catch any missed water or debris from the main filter. You also disabled the sensor in that filter that triggers the main engine alarm for water in the fuel.
The micron rating for a particular filter is not as important as how often it gets changed. Reassemble the engine back to mfg specs and add any additional parts to the fuel system as necessary. The lift pumps never fail if you replace them as scheduled, which is 4 years, so yours are good.
Good luck getting the injectors cleaned. You had two consecutive, but unrelated, problems with that engine that made troubleshooting difficult.
Well, if it were my engine, I would reinstall the filter assembly under the cowl. The spin on Racor fuel/water separators in the bilge are not 100% effective, as they rely on gravity to separate the water from the fuel. Water can get by these filters if they are getting near capacity or the fuel they are filtering is churned up due to the boat running in rough seas. The engine filter you removed would catch any missed water or debris from the main filter. You also disabled the sensor in that filter that triggers the main engine alarm for water in the fuel.
The micron rating for a particular filter is not as important as how often it gets changed. Reassemble the engine back to mfg specs and add any additional parts to the fuel system as necessary. The lift pumps never fail if you replace them as scheduled, which is 4 years, so yours are good.
Good luck getting the injectors cleaned. You had two consecutive, but unrelated, problems with that engine that made troubleshooting difficult.
Yes water got pass my Racor and the engine filter caught it. But I already told you that maybe this time you will listen.
They can't clean injectors on the island? How do cars get serviced?
Or STP makes an additive called "Injector Cleaner" you mix with your fuel. Cost about $1.29, once every 3 months, but mixed at a higher concntration in you gas tote of fuel, not in that 200 gallon tank.
Ever clean out your tank to see what is actually causing this problem?
Think gum, agglomerated old fuel, not so much just hard particles.
I have no idea how injectors get cleaned here for automobiles. I suspect that a compressor that can handle 100 psi and a 12 volt battery? The truth is probably that the local mechanics just replace injectors if they clog. NAPA carries them for cars and trucks.
In any case, they are not HPDI injectors, 1000 psi and whatever voltage. I was told 200 volts to fire them.
Since there are exactly six HPDI injectors in this nation, sitting on my desk at the moment, I am pretty sure nobody here has invested $ 8,000 in a cleaning machine.
As for the gas tank, yeah, I would love to clean that out. I am having a hard time picturing where to just dump something like 50 gallons of gasoline, though. It's gonna kill the palm trees....
I do have an idea. A bunch of Filipino laborers pooled their money and bought my Suzuki Samurai last week. I think I will tell them they can have the gasoline if they take it out of the boat. That Suzuki would run on it, and they have a bunch of cars like that.
We don't have any other gasoline motors, except my new generator and I really don't see me putting old gasoline in that, either.
I have no idea how injectors get cleaned here for automobiles. I suspect that a compressor that can handle 100 psi and a 12 volt battery? The truth is probably that the local mechanics just replace injectors if they clog. NAPA carries them for cars and trucks.
In any case, they are not HPDI injectors, 1000 psi and whatever voltage. I was told 200 volts to fire them.
Since there are exactly six HPDI injectors in this nation, sitting on my desk at the moment, I am pretty sure nobody here has invested $ 8,000 in a cleaning machine.
As for the gas tank, yeah, I would love to clean that out. I am having a hard time picturing where to just dump something like 50 gallons of gasoline, though. It's gonna kill the palm trees....
I do have an idea. A bunch of Filipino laborers pooled their money and bought my Suzuki Samurai last week. I think I will tell them they can have the gasoline if they take it out of the boat. That Suzuki would run on it, and they have a bunch of cars like that.
We don't have any other gasoline motors, except my new generator and I really don't see me putting old gasoline in that, either.
That just totally doesn't make sense to me. Why would I go through all the time to get the fuel out, BUY a barrel, spend all day burning fuel in the hot tropical sun, worried about smoke, fumes, leaks, fire, and pollution, and then have a rusty, burnt up barrel to have to deal with. This approach costs me a lot of time, and some money, and some anxiety.
Six Filipinos will show up with various ways to carry gasoline, drain the tank, get every drop their clever minds can get, and take it away to run lawnmowers, weed eaters, chainsaws, and Suzukis with carbs. No cost to me. No worries. No day spent monitoring how to throw gasoline on a fire, etc. etc. etc.
That just totally doesn't make sense to me. Why would I go through all the time to get the fuel out, BUY a barrel, spend all day burning fuel in the hot tropical sun, worried about smoke, fumes, leaks, fire, and pollution, and then have a rusty, burnt up barrel to have to deal with. This approach costs me a lot of time, and some money, and some anxiety.
Six Filipinos will show up with various ways to carry gasoline, drain the tank, get every drop their clever minds can get, and take it away to run lawnmowers, weed eaters, chainsaws, and Suzukis with carbs. No cost to me. No worries. No day spent monitoring how to throw gasoline on a fire, etc. etc. etc.
Plus I make some friends.
I like my way.
That is for the same reason you keep the baracuda and give them away
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No cost to me. No worries. No day spent monitoring how to throw gasoline on a fire, etc. etc. etc.
Plus I make some friends.
I like my way.
Yeah, well, at least until three or four of them demonstrate their newly-learned skill at starting a mouth-siphon for gasoline and end up in whatever sh**hole passes for an ER there on the rock you live on. And they say, those that live, "jus' sen' the bill to Mr. Greengo, we workin' for him, mon."
