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| wadesta_1986 |
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My mum has just bought an XF for like $500. Its the 250 carby donk with a 5spd behind it. Every time you give it a bit to much gas, it looses power, backfires through the carby and then takes off. Yes, sounds really funny going up the road through all 5 gears but It loosing alot of power because of it. I have rebuilt the carby with a carby kit and set it all to spec. Still does it. Im thinking mabey head gasket next but that dosent make sense. It idles beautifully. I hooked a tach up to it and it idles perffectly with like a 20 - 30 rpm difference here and there. Help Please!! Im slowly loosing hair!!
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| mitchg911 |
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have you checked the timing? if so what is it?
-mitch
_________________ BF XR6T 6spd Auto. 60lb injectors, Hybrid Cooler, Custom Piping, Custom Surge Tank, Actuator. |
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| Warlock |
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play with the mixtures on the carby dude
_________________ WINNER: |
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| wadesta_1986 |
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I didnt clear the timing marks when I checked it but it was lighting up when the mark was in the middle of the crank marks. I would say about 2 - 3 degree and where is the mixture screw on the webbers? I cant find it any where!!
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| smoke_ |
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my coil in my ute did that.
replaced it, and now it goes great.
_________________ NEW RIDE - FPV FG F6 6spd Auto. 12.26@114MPH, 1.88 60FT on Cheapy Tyres with 38PSI - Stock except K&N filter! |
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| wadesta_1986 |
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Ok, I will check the coil later
Thanks For That |
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| steve2208 |
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if is backfiring through the carby sounds like the float level or mixture in correct , or check the leads one by one for resitance 6000 ohms per 300 mm of lead and make sure u have continuity through the coil , and maybe check for inlet manifold leaks using aerostart and spraying it along the manifold
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| wadesta_1986 |
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I did think float level but when I checked it, it was all good. 7mm level and 14mm travel. Yet to check mixture but will get a coil soon!
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| trevi |
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i had that exact same problem in my auto xf, and it came down to some crap in the fuel lines... i replaced both filter elements and flushed the lines as best i could, now it runs ok...
_________________ Laws are only as good as the ability to enforce them... |
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| XFSteve |
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As a rule of thumb. 99% of all fuel problems can be traced to the electrical system.
XFSteve
_________________ Even a backfire from a Ford is a QUALITY BACKFIRE |
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| Squirt |
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Just a stab in the dark here but the fuel your puttin' in isn't an Ethenol blend is it?
I've had some real dramas with that fuel in a couple of cars
_________________ Knower of ALL......Master of NOTHING !!! |
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| TUF250 |
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ate it will be the timing for sure
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| TUF250 |
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also mate test the plugs and leads good chance they are out of spec too
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12.06@120MPH
