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not just this island. No HD in the country. Over 40 islands. No Sears. No WalMart. No Target, Radio Shack, McDonalds, Wendys, KFC, BurgerKing or Dunkin Donuts. No 7-11, UTotem, or Tedeschi. No Midas, KMart,Pennys, Firestone, or Sports Authority. No Baskin Robbins, Dairy Queen, or Pepperidge Farms. No outlet stores. No Bass Pro, Cabelas, or Gander Mountain. No Shaws, H.E.B. or Stop-N-Shop. No Randalls, Walgreens, or Shop Rite. No Dominos, Pizza Hut, or Roy Rogers Roast Beef. No ACE, Aubuchon, Woolworths, Lowes, CVS, Kroger, Costco, Sam's, Safeway, Best Buy, or Publix. No SuperValue, Gap, Office Depot, Office Max, BJ's or Nordstrom. No A&P, WinnDixie, or Dillards. No Sachs, Giant Eagle, or Bed Bath and Beyond. No Borders, Neiman-Marcus, or Pathmark. No Burlington Coat Factory, Cumberland Farms, or Banana Republic, Inc. No Jack-In-The-Box, Ann Taylor, Bon-Ton, Academy, or Eddie Bauer. No Piggly-Wiggly, PriceSmart, or West Marine. No Brookstones, Foodland, or Eastern Mountain Sports. No REI, Toys R US.....No Victoria's Secret.
No traffic lights, no breathalyzer, no State Police, County Sheriffs, Game Wardens, FBI, Park Police, Capital Police, Campus Police, or Homeland Security. No metal detectors in the schools. No DEA, BATF, or US Marshals. No Army, Navy, Marine Corp, Air Force, or SWAT teams. We can ride in the bow of bow riders. We can stand up and lean on leaning posts. The only fish that has a closed season is lobster. you can go into any restaurant in the country in shorts. Some require shoes, but not many. You can take your dog into some, if he behaves himself. You can walk into any store barefooted, if you want. I have not seen a boat trailer with a TCI license plate on it, yet. Mine has an expired Florida plate on it. Nobody cares. You can walk down main street with an open cold beer in your hand in plain view and nobody will care. You can drive home from work with another cold beer in your hand, and as long as you don't cause a problem, nobody will care. You better have your seatbelt fastened, though. That's a law. I think they bought a radar gun a couple years ago. It broke.
yeah, there are some tradeoffs. I don't have an IR gun.
Holy crap! You don't have a whole lot of anything. I'm going to be impressed when you fix an HPDI with nothing but a rock and a sharp stick in your toolbox.
Hopefully you have a decent hospital in case of a medical issue.
No. We have a couple clinics. They ran out of pain meds and insulin last year. There are a couple modern hospitals being built, but they are a long way from operational.
Meanwhile, we are an hour's Med Flight from Miami, and we carry health insurance ( cheap!) that covers that. Plus 100% of med expenses after the deductible.
VST vent clogged? Does it even have one? Too lazy to look at my OX.
Gas goes in from LP pumps until the float shuts it off the flow then the HP pump sucks it out (high RPM's) until it creates a vacuum in the VST (low RPM's). Vent is not totally clogged and will equalize pressure overnight. Just a guess. Everything before the VST "seems" to have been ruled out.
Oh! I thought there was a float that stopped LP flow when the level got to a certain point.
Is there a way to check pressure in the VST? What should it be?
yeah, there's a Shraeder valve on top of the VST. We would be looking for 50.8 psi, with the engine running. IF we could find a fuel pressure guage on the island.
yeah, there's a Shraeder valve on top of the VST. We would be looking for 50.8 psi, with the engine running. IF we could find a fuel pressure guage on the island.
No, you misunderstand. The Racor just went on in the last couple of weeks. Before that it was an old Perko. What dirt there was on the VST ( the first 10 micron in the system, before) made it through the Perko and the 28 micron Yamaha filter. There was not a lot of dirt in the fuel filter on the engine. Nor was there any water in it. The Perko caught the water. But that plastic filter was a pain. It is distorted and leaking.
Why would I want to leave it on? it's not only useless, it's causing problems. Kind of like a broken, infected tooth.
The fuel gets filtered to ten microns by the Racor. It would be kinda useless to put even a good, functioning, 28 micron filter after that. It's like filtering something through cheesecloth, and then filtering it again through burlap. What's the point?
Add to the fact that the burlap is contributing to the problem. Get rid of it.
There is no "story". And therefore, no "moral" to it. Simple engineering.
I question this.
If you take the filter out, then crud can plug an injector, can't it?
Lot more holes to plug on a screen than one important one on the injector.
Did you know there is a Bird Rock just outside the entrance to Leeward-Going-Through here? It's a local navigational landmark. I got quite a few photos of it.
Bullshipper...
The filter I removed goes between the fuel line coming in to the motor, and the VST filter. It was obviously intended by Yamaha to be a "better-than-nothing" filter and fuel/water seperator. The filter element filterd down to 28 microns..
Okay, I installed a bigger, better filter in the boat. It filters down to ten microns. The fuel that gets through that then goes to the VST, where there is a screen, also ten microns. From the VST the fuel has already been filtered twice to ten microns, and then goes through a third filter, which is a screen to catch anything that gets out of the VST pump. THEN it goes to the HP pumps, THEN to the fuel rails, and THEN to the injectors.
The 28 micron filter was not contributing anything to this process. IT would do more good if I installed in in the bilge of the boat, before the Racor.
But since it was causing problems, leaking fuel, etc. I just took it out. It wasn't going to find any 28 micron sized gravel in the 10 micron sand that came though the Racor... Never.
Did you know there is a Bird Rock just outside the entrance to Leeward-Going-Through here? It's a local navigational landmark. I got quite a few photos of it.
No traffic lights, no breathalyzer, no State Police, County Sheriffs, Game Wardens, FBI, Park Police, Capital Police, Campus Police, or Homeland Security. No metal detectors in the schools. No DEA, BATF, or US Marshals. No Army, Navy, Marine Corp, Air Force, or SWAT teams. We can ride in the bow of bow riders. We can stand up and lean on leaning posts. The only fish that has a closed season is lobster. you can go into any restaurant in the country in shorts. Some require shoes, but not many. You can take your dog into some, if he behaves himself. You can walk into any store barefooted, if you want. I have not seen a boat trailer with a TCI license plate on it, yet. Mine has an expired Florida plate on it. Nobody cares. You can walk down main street with an open cold beer in your hand in plain view and nobody will care. You can drive home from work with another cold beer in your hand, and as long as you don't cause a problem, nobody will care. You better have your seatbelt fastened, though. That's a law. I think they bought a radar gun a couple years ago. It broke.
yeah, there are some tradeoffs. I don't have an IR gun.
Gringo I like it ,even beter this part here, sounds like the good ol USA.
Oh! I thought there was a float that stopped LP flow when the level got to a certain point.
Is there a way to check pressure in the VST? What should it be?
Quote:
Originally Posted by Gringo
yeah, there's a Shraeder valve on top of the VST. We would be looking for 50.8 psi, with the engine running. IF we could find a fuel pressure guage on the island.
Quote:
Originally Posted by eddy2419
The LP pumps provide that much pressure?
No, the LP pumps do not provide more than just above ambiant pressure. The shraeder valve is between the high pressure pump and the injector rail.
No, The Schraeder valve is directly on top of the VST housing. The VST has an electric pump in it. If there is another, second valve, between the HP pumps and the rails I have not seen it. And I been in there lots of times lately.
That is about 1000 psi there, isn't it? Would a rubber valve stem survive that?
There are five fuel pumps.
The two boost pumps are mounted to the block, and use crankcase suction to move a diaphram that pumps fuel up into the VST. It goes through a needle valve which is opened and closed by a float, just like a carb float chamber. Inside that VST housing is an electric fuel pump. It comes on briefly when you turn the ignition key on. It boosts the fuel pressure from the low pressure the two boost pumps provide up to 50 psi. This fuel is provided to the two belt driven HP pumps on top of the motor. The output of the two HP pumps is what goes to the fuel rails, and then to the injectors.
No, The Schraeder valve is directly on top of the VST housing. The VST has an electric pump in it. If there is another, second valve, between the HP pumps and the rails I have not seen it. And I been in there lots of times lately.
That is about 1000 psi there, isn't it? Would a rubber valve stem survive that?
There are five fuel pumps.
The two boost pumps are mounted to the block, and use crankcase suction to move a diaphram that pumps fuel up into the VST. It goes through a needle valve which is opened and closed by a float, just like a carb float chamber. Inside that VST housing is an electric fuel pump. It comes on briefly when you turn the ignition key on. It boosts the fuel pressure from the low pressure the two boost pumps provide up to 50 psi. This fuel is provided to the two belt driven HP pumps on top of the motor. The output of the two HP pumps is what goes to the fuel rails, and then to the injectors.
Thread is now too long to read everything you've done. Have you ruled out a bad boost pump? These pumps are diaphragm pumps and perhaps one (or both) has a torn diaphragm.
Also, have you attach a length of clear hose between the fuel line on the tank side and where the fuel filter was to see if you are getting any air bubbles in the fuel feed line?
