Disco 2 Wastegate adjustment
- Thread starter MJI
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13 threads apart I believe, unless I've misremembered. i.e. from actuator diaphragm thing to locknut.
https://forums.lr4x4.com/topic/333-td5-wastegate-actuator-length/
This says 14 but I'm sure I've read 13 elsewhere, but if you want to muck about with it, don't shorten it too much!
https://forums.lr4x4.com/topic/333-td5-wastegate-actuator-length/
This says 14 but I'm sure I've read 13 elsewhere, but if you want to muck about with it, don't shorten it too much!
neilly
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Do you have a nanocom ? or similar diagnostics that shows the inlet manifold pressure?
If you do iirc max you can set it to is 242 kpa. Then it will start to limit.
iirc I set mine to 11 threads. Which gave me 240 Kpa at max boost.
Cheers
If you do iirc max you can set it to is 242 kpa. Then it will start to limit.
iirc I set mine to 11 threads. Which gave me 240 Kpa at max boost.
Cheers
sierrafery
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Tighten it to 11 threads left from lock nut and if it goes to overboost loosen it half thread at a time untill it rides fine
Actually it's a bit more complicated(i had the same impression like you untill i dug deeper) the overboost limit is based on boost pressure calculated by the ECM at 1.42 Bar from MAP - AAP readings so if you are at high altitude or the sucction is high and the AAP goes to let's say 90 kPa under heavy load the overboost protection will kick in at 232 kPa MAP reading cos 232 - 90 = 142(1.42 bar) if you see what i mean
neilly
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Yes that is how I have always known it, but for sake of argument it is simple enough to use .
Cheers
sierrafery
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The turbo is set to 13 threads from factory as to work well with the Td5's management, if you have to add more lenght to the rod there's a problem with the valve or something, it can even accept 2-3 threads less as to not create overboost but to lenghten the rod is completely illogical
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sierrafery
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You can measure the lenght of the rod with caliper and remember it for next time then you dont have to count threads only to set the other to the same lenght(or shorter if no overboost) but not longer whatsoever... i'd measure mine and tell you but it's irrelevant as i have forge actuator
It had fallen off, locknut came loose.
Was too long before as I think it had been done to sort an overflow replacing the AFM sorted.
I will take it two turns next dry day
