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| stanstorey Member Since: 06 Mar 2012 Location: East Devon Posts: 123  
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I was actually freeing up my waste gate earlier and was unaware just how free it needs to be, so it drops back to centre position itself (as mentioned earlier).
This youtube clip was most helpful... I just used WD40 as that's all i had to hand, but worked well enough and will keep an eye on it now, it's not a tricky job. |
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26th Jul 2018 9:48pm |
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| gazman Member Since: 17 Aug 2015 Location: Liverpool Posts: 652  
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when was the fuel filter last changed? is the pump noisy? what size wheels and tyres? what transfer box ratio etc?
mine on 33's and a 1.2 struggled much over 70. It was over geared. it also went slow just before the fuel pump died. Started foot to the floor to do 70, then a few weeks later 60, then same again and 50. The injector seals had gone putting carbon in the tank which killed the pump and blocked the filter. 2014 - current ..... 2003 defender td5 90 (my car) 2009 - current .... 2005 zx10r |
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26th Jul 2018 10:53pm |
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| drinkdrinkdrop Member Since: 13 Sep 2016 Location: Surrey Posts: 76
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New VDO MAF did the trick so it appears that if running with and without a MAF doesn't affect performance then it's likely gone.
Top speed now 78-79 which I'm putting down to my lift and roof rack with associated gubbins making the aero worse than when it left the factory. Throttle response is now good in all gears so I'm happy enough. Thanks for all the comments/suggestions |
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30th Jul 2018 8:52am |
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| Djcla Member Since: 29 Jul 2017 Location: Gloucestershire Posts: 469
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Hi , did you just gamble on it being the MAF as im convinced mine is also broken and which one did you buy and how much ?
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30th Jul 2018 2:09pm |
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| drinkdrinkdrop Member Since: 13 Sep 2016 Location: Surrey Posts: 76
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Well, it made no difference if it was connected or not so I had my suspicions, to confirm I bought the cheapest one I could find to see what effect it would have and it was worse than no MAF which gave me enough confidence to fork out for a decent one . Got a VDO one from island 4x4 in the end
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30th Jul 2018 4:25pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769 
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On the bell auto services web site there is a how to on checking the maf Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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30th Jul 2018 4:52pm |
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| Djcla Member Since: 29 Jul 2017 Location: Gloucestershire Posts: 469
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I think that says to check the voltage output from pin2 bit I've never quite sussed out how to do that ..
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30th Jul 2018 9:18pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769
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Using a multimeter. Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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30th Jul 2018 9:25pm |
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| Djcla Member Since: 29 Jul 2017 Location: Gloucestershire Posts: 469
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Haha I meant actually getting a connection on the pins as multimeter prongs are to big
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30th Jul 2018 9:32pm |
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| drinkdrinkdrop Member Since: 13 Sep 2016 Location: Surrey Posts: 76
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Sewing needle through the insulation then touch the multimeter to that has bailed me out a few times
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30th Jul 2018 9:35pm |
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| Djcla Member Since: 29 Jul 2017 Location: Gloucestershire Posts: 469
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thanks for the needle tip, i got it tested and it was showing 2.0v on idle so i guess mine is functioning ok even though when disconnected its not making any difference.
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2nd Aug 2018 10:35am |
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| DefenderJon Member Since: 01 Dec 2012 Location: Sunny Ulster Posts: 68  
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My apologies, just noticed your post. I disconnected the c clip from the wastegate that holds the actuator rod. I then sprayed lots of GT85 around where the shaft goes into the turbo and kept working it back and forth 'stop to stop' until it would return to centre without either sticking in the open or closed position. I last checked it about 6 months ago, and it was as free as it had been when I fixed it. My symptoms were exactly as per the OP's. Checking it with mole grips won't tell you anything - it needs to be REALLY free. Jon. Defender 90 TD5 CSW - The longer I own it, the newer it gets!! |
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12th Aug 2018 11:41am |
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| urkki Member Since: 15 Nov 2015 Location: Finland Posts: 9 |
Once again, quality electrics cleaning spray in MAF did some cure for mine. After while the magnetic valve and engnine is doing great and strong as ever
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30th Aug 2018 8:20pm |
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| NickMc Member Since: 01 Oct 2014 Location: Norn Iron Posts: 1624 
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Never ever poke through the insulation on wiring you heathen!
 the only way I would do it is last resort with a Pomona piercing probe and then seal it up with liquid electrical tape.
Back probe the connector instead. |
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30th Aug 2018 8:41pm |
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