So I just found this group and was excited to join. I just purchased a 1994 Diahatsu hi jet. It was running like a sewing machine lol. I was headed out to get gas thinking i had a 1/4 tank but the gauge lied and i was able to turn around and sputtered into my driveway. I filled it up and couldn't get it started. it finally after hrs and many words start an idled and shut off . Now it will run for a couple min idling and if i touch the gas sounds as if it were bogging and dies. Could the fuel pump have taken a dump ? fuel is flowing all the way to pump and i assme pumping while running or not . very frustrating . I've had diesel equipment run out of fuel and easier to start than this lol. Any tips or tricks would be greatly appreciated .
wanted to just add that some how no spar developed . i check an seemed like wire between cap an coil wasn't working . changed it an starts but will not idle and runs rough. Im going to pull plugs an clean them and see if that helps .
maybe the old fuel filter is dirty, read this https://minitrucktalk.com/threads/fuel-filter-replacement.20611/
im gonna change that too even though where i bought it did a tune up running it dry could have created a bunch of issue as far as the wire maybe reaching in working i bent it or something so weird . its been running fine for weeks . I assume if the fuel pump wasn't working i couldn't even get it started .
the fuel pump could be too weak if not working properly pumping not enough fuel volume. There are two types of fuel pumps. The first is mounted on the cylinder head of the Daihatsu Hijet and is driven by a pin that pushes the diaphram by the movement of the cam shaft. The second type of fuel pump is an electric fuel pump that is mounted inside the fuel tank. https://minitruckpart.com/daihatsu/hijet-pumps https://www.ebay.com/itm/154234336434 not sure which one your model has
ok mines on engine im going to install new one and start from scratch . can i add an aux electric pump inline for added protection?
I would keep it original and would not make any experiments. Either original mechanical pump, or install an electric pump, but not 2 pumps. Some have done this.
I bypassed the stock mechanical pump, and installed an electric back by the tank, and a regulator just before the carb to drop the pressure down to 2.5-psi. Any more pressure than that, and it will push past the float and needle, and flood the carb. There is an internal filter in the carb, just before the needle an seat, which could have clogged up when it got low on fuel. Add a bit more information to your signature. doesn’t need to be a much as mine, but knowing which engine version, whether carb or Fuel Injected, manual 4-spd, 5-spd, or auto, 2 or 4-wd, locking rear axle or not. It helps give you goo info when you ask for help.
Thank you . im thinking its a spark issue as well. that internal filter you're talking about i assume ill have to pull the carb to get it . And i will update signature
So i installed an automotive coil to see if that rectified problem and doesn't. Im not getting any spark is there a fuse or something because i should be getting spark coming out of the coil and im not .
Disconnect the wires from the negative on the coil, and attach a wire long enough you can touch the loose end to the frame. Pull the high tension lead from the coil to the distributor. With the key on, hold the high tension lead about half an inch from something grounded. And then touch the lead you added to the negative on teh coil to ground. You should see a nice blue-white spark. If you don’t the coil is bad, or the ballast resistor feeding it is bad. If you have a good spark recheck the fuel system. Engines need two thing to run. Fuel and Spark. If the coil is feeding to the distributor, then the fuel system isn’t right.
They need 3! Fuel, fire (spark), air! Can't have fire without oxygen. Diesels are a different story... suck, squeeze, boom!
Thanks for info im very mechanical an this has stumped me. I almost thought there might be a fuse somewhere Im so puzzled wit this . its becoming aggravating
yea nothing there . i have this lil silver thing that plugs in has ohm symbol on it . but i have seen the coils on it the resistor mounted right to it I will post a pic of that thing
Still f ing around trying to get it started. I put new coil in will start run for few min then just crank im wondering if the fuel pump is bad ? haven't been working on it a lot now that its gotten cold. I can't imagine its something major gotta be something stupid but i don't wanna keep throwing parts at it
No I am not. So today I just installed a new resistor new coil. Started right up it will run perfect if I keep my foot in the throttle. But it will not idle so I’m thinking I had a combination of problems with the spark and fuel solving the spark. So I am wondering now if I add as I’ve seen in other posts an in-line fuel pump with low pressure setting and see if that is the culprit otherwise it is probably something in the carburetor but the fact that it now starts. Also after running it when I try to start it back up it will start but regardless of pressing the gas pedal all the way down I can’t get any throttle out of it. Or the float is sticking. Trying to easy things first obviously it’s a PIA to get to these other parts
