Hello all , more problems with old Rattles , my Defender 300tdi . Started it up yesterday afternoon and it felt a bit rough , drove it down the street but it lost power so I pulled over .. it would tick over roughly but any attempt to move off would cause it to die . No bother starting it again , but just trying to rev it would cause it to lose power similar to a blockage in a fuel line . So this morning I removed the hose from fuel filter and stuck it in a jar of diesel but it behaved exactly the same . With each successive start the tick over got rougher , now it'll fire up but immediately die again . Bleed back hoses look sound , injection pipes are tight and there's no diesel leaking . Thanks in advance for any help with this .
Defender 300tdi Lost Power and Died .
- Thread starter dogdog1
- Start date
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Anaconda
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- 4,064
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- Thames Valley
I would put a new filter and clear pipe from filter to injection pump first, costs very little.
Adjust the idle screw up a little bit.
In our case on the 200tdi it was injection pump.
Adjust the idle screw up a little bit.
In our case on the 200tdi it was injection pump.
I've actually been running it on a blend of veg oil petrol and diesel since 2017 in a switchable unheated two tank system . The "homebrew" tank goes through it's own filter and hoses to the lift pump and the original diesel tank hoses bypass the lift pump as the Bosch VE can handle regular diesel but the heavier blend needs the lift pump . Since it's behaving the same way on the diesel circuit it won't be the lift pump .
I put a length of clear hose from a jar of diesel directly to the injection pump but no change .
Anaconda
Well-Known Member
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- Thames Valley
Since you can bypass one system with the other and still have the problem then you only have injectors or injection pump left on the fuel side.
For the cost you may aswell get the injectors refurbed if you get the injection pump done.
I ran a 60:40 veg oil:diesel mix for years just straight into the tank. But when I was doing that I would get through a fuel filter every 2k miles and a lift pump every 8k miles. I would every so often run a tank of straight diesel with a heavy dose of two stroke oil/atf to preserve the injection pump. I only stopped because I lost my oil supply. But straight oil will take a toll on the injector pump.
Indeed , it's always a risk . I run a 4/3/1 ratio of wvo/diesel/petrol so a weaker mixture than yours , also petrol is a great solvent so should keep the system clean . The few times I checked injectors and glow plugs they were remarkably clean . I have never had a filter clog , although on a few occasions I've had to dig out a plug of micro-crispies bound together with Alsatian hairs (they get everywhere) from the bend in the pickup pipe or the banjo union at the filter inlet of the homebrew tank . The current symptoms are similar to that but more extreme .
What exactly happened your pump ?
Would start on three and smoke like a trooper, then might take 5 Or 50 miles for the non working cylinder to start running again, sometimes remove filter and fill with cleaner would get it going sooner, in the end fitted one of my spare injection pumps which has been fine ever since.
Very different symptoms compared to mine . I'm no further on with the thing here .
It may be a good solvent to Keep things clean but it has very little lubrication properties which is another key thing the diesel fuel does in the injector pump. Hence my use of two stroke oil.
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Pop the rocker cover off, see if the shaft is buggered ...
Well that's a new angle .. what exactly should I be looking for ?
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- 69,280
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- The Wooly Witch
Rocker shaft broken, in about three pieces ...
Take the cover off and give it a wiggle, the breaks maybe hidden under the securing sections ...
I thought the rocker shaft only broke if the timing belt failed .
- Posts
- 69,280
- Location
- The Wooly Witch
Nope, had it on the Great West Road ...
Right . I'll check it tomorrow , thanks .
