Vehicle & Technical > Discovery

sluggish 200tdi

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extreme90:
right the story
today a friend asked for his pump to be tweaked on a 200, no problems i thought  :roll:
cracked the cover off to the diaphram.... lots of a rusty type dust in there  :shock:
so cleaned it all off, then moved on to try and remove the diaphram  :roll:
errm stuck  :shock:
managed to get it to pop up so far but it refused to come out, so i turned it 90 degree put it all back together but it then struggled to pull off let alone move up the road  :shock:
so back off with the cover thinking its already been opend up, put it back together.....nothing still the same  :shock:

so on my understanding of the pump, theres the little throlle shaft that runs on the cam, now if this is stuck in the out position (onto the cam ) then this wont allow me to remove the diaphram...right ?

but if i rotate the cam to its steepest position whilst pulling onit they usualy pop out, but this one doesnt, it goes real tight and still refuses to pull out  :?

now he has always complained that his engine was abit flat, but after today, its megger flat and struggles to pull away  :shock:

so my question is, is it the stuck throttle shaft thats causing the problem ?

i can get to the shaft by removing the throttle arm and them removing the grub screw next to it to gain access to hopefully convince it to become unstuck  :evil: but im not looking forward to re-fitting the throttle arm  :evil: that springs a royal PITA to re-compress and to alighn the arm back up with the splines all in one hit  :roll:

dan

Sharpshooter:
Sounds a little pain.

Did you mark up where it was before you moved it? If so, if you reset it, does it go like it did before?

Also, make sure that the hose that is connected to the cover did not split when you removed it.

The throttle pin shouldnt stick if it has been running ok. But i would try filling the void with diesel ad leave it overnight. It might free it up by itself.

 :D

extreme90:
no, its back to std now and its still the same
pipe isnt split, im getting good pressure out of the tubby
diaphram itself isnt split
it was sluggish before, but never this bad

ive had these pumps apart before and theres physically nothing to break up top end of the pump ( diaphram area)
its when you get inside that things will break  :cry:

afink its more to do with the stuck arm than anything  :?
i will find out tomorrow when i take the throttle assay apart  :roll:
but i dont understand why its so flat  :?
dan

Les Henson:
I agree with Dan - put some diesel in there and leave it to penetrate. Perhaps the reason for the flat engine is down to the mechanism not working properly before you tried to take it apart.


Les.

Range Rover Blues:
I'd agree, but I'm no expert :oops:

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