marcjagman
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| posted on 28/11/10 at 07:27 PM |
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2.9 XR4x4 problem
Got a bit of a problem with my XR4x4, think it's ignition but not sure. It doesn't seem to want to rev past around 4000rpm, but that is
according to the rev counter. Pulls like a train upto around that figure then really struggles. Wondering if it was something like an ignition
amplifier. Car is in superb order with only 60k on the clock. scratching my head a bit as I can't really afford to buy several parts at the
moment so was hoping someone on here may know of some checks that I could do to eliminate certain other things, dodgy rotor arm or cap etc. Any help
would be appreciated.
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Mark Allanson
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| posted on 28/11/10 at 07:30 PM |
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I had the same thing, turned out to be the tiny corpse of a sparrow blocking the air inlet
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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MikeR
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| posted on 28/11/10 at 07:31 PM |
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Is the fuel feed ok? Blocked fuel line / crushed pipe / dirty filter?
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RichardK
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| posted on 28/11/10 at 07:33 PM |
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Knackered vac advance pipe, no advance, essentially in limp home all the time?
Gallery updated 11/01/2011
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marcjagman
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| posted on 28/11/10 at 07:41 PM |
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MikeR, fuel system appears fine. RichardK, never thought of that, thanks. Mark Allanson, eeuuugghh.
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jacko
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| posted on 28/11/10 at 07:50 PM |
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Air filter blocked ?
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marcjagman
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| posted on 28/11/10 at 08:18 PM |
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Not air filter, got 2 newish looking K&N's
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britishtrident
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| posted on 28/11/10 at 09:16 PM |
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ISTR these have a flap type airflow meter like the Xr3i---- pivot could be sticking.
Also possible fuel flow rate problem ---- blocked filter ?
Other than that basic servicing.
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marcjagman
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| posted on 28/11/10 at 09:34 PM |
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It's got 2 AFM's, the 2.8 had 1, but will look and clean, again something I didn't think of.
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woolly
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| posted on 28/11/10 at 10:09 PM |
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idea: rotor arm as its a rev limit one as do they short out early when old. presuming yours has one.
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marcjagman
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| posted on 28/11/10 at 10:11 PM |
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I only checked for wear, nice and easy to replace and cheap too. Great idea, thanks.
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bmseven
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| posted on 29/11/10 at 07:33 AM |
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Air leak on the intercooler?
BMW 7 Resource
Bures Pit anyone?
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marcjagman
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| posted on 29/11/10 at 09:07 AM |
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What intercooler? No turbo.
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