Vehicle & Technical > Defender

Help!!!! no revs

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extreme90:
so, enlighten me as to whats adrift with the pump ?
ask them for the old diaphram and eccentric back when its been refurbed
expect to see a deep gouge in the cam of it where the pins siezed
am sure if got one lying around here some where to show you what i mean
ive got a pump aswel to strip and show you the problem if you want
the arm will stop the turbo coming onto boost as the diaphram cant move downwards because of the siezed arm
no boost bleed off from the turbo, gives no fuel, gives no go
i take it that it takes a eternity to rev up in neutral ?

BK:
it doesnt rev at all,just ticks over very badly,just had a price 4 it doin £140.00 that includes a guy comin 2 my house takin pump off,takin it away,reconning it and building back up and coming back to my house and putting it back on again,so i dont think thats bad at all

extreme90:
is he going to use the locking tool so you dont need to remove the timing belt ?
or are you getting a new belt fitted to it ?
ask him for the old eccentric though
its only the pin siezed
mite actually have snapped if it doesnt rev at all  :-.

electricbluebadger:
Gotta admit seen a few seized but never one snapped, almost certainly initially seized so maybe some damage was caused turning it using the diaphragm nut whilst still in situ as BK said he did. Be interested to know the outcome and what the cause was, despite BK insisting


--- Quote ---I followed your instructions to the letter
--- End quote ---


I still cant find the bit where it tells you I used the nut to turn the diaphragm ;) but maybe something was gouged or broken turning the diaphragm against a potentially seized pin

however if that is what caused the damage then it may be worth putting a warning on the site in case anybody else decides to try their own thing instead of removal as clearly shown.

You cant do it without diaphragm removal because you have absolutely no way of knowing where the cam offset is to start off with.. normally 12 O'clockish but you can't be sure a previous owner hasnt already messed with things. Turning it without removal therefore is a bit hit n miss the more people carry out this mod IMHO.

As a side note we've done Snake110's new Disco at the weekend which flatly refused to rev above 3000 rpm (before any modding I might add) and picked up really badly, turned out the pump was internally seized which we put down to the very cautious driver who owned it before, it had never been over 2500 rpm so guess it had hardly ever come on boost and needed the extra fuel delivery.....

Goes like the proverbial now :) , even added a touch more boost to mine to keep up ;) , Note to self.. get a boost guage SOON!!!

Shes now been running 10 months boosted and 8 months on veg (legally :) ) and the only running repairs are two front prop UJs and one of those was on its last legs before the mod, a fan belt and a clutch slave.... despite regular hammerings off road and occasional 'spirited' on road progress ;) who says Defenders are Unreliable :)

Also have been looking at the pump on the VW TD Golf lump Im about to drop into Caz's Vitara... looks identical so looks as though that will be next on the modding list, although that will definately be getting an accurate temp, boost and EG temp analyser as they can run close to the mark at the best of times....



Cheers Steve

BK:
Look,I think that you think I am blaming you,I am not.As I have said,its my fault and I will have to sort it out with my money.i did not touch the diafram nut,i turned the whole thing,but it would not come out as it obviously was seized,so i put it all back together again and it wouldnt run properly,its ok all you lot sitting at your pc,s telling me what YOU think cos you think you are all landy wizards,but really you are not you are just home-made mechanics,until you look at something you dont really know whats wrong.

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