TD5 rough running

Tried undoing but just turned engine over. managed to borrow a 24mm socket off a mate, so will have a go tomorrow night

jsbholden said:

Tried undoing but just turned engine over. managed to borrow a 24mm socket off a mate, so will have a go tomorrow night

Click to expand...

Let me know how you get on. It's a problem I may have to deal with soon enough in mine.

Send a PM if you like
CharlesY

Managed to get it off! had to use bar on crank bolt.

The rubber on the outer part looks shot. cant really see anything on the belt part







Do I have to put the 3 bolts back before stating it up? (dont have any washers to pack them out with)

jsbholden said:

Managed to get it off! had to use bar on crank bolt.

The rubber on the outer part looks shot. cant really see anything on the belt part

Do I have to put the 3 bolts back before stating it up? (dont have any washers to pack them out with)

Click to expand...

I think you might wanna try loading yer pics again.:doh:

What did you take off?

I was hoping you would only take off the three smaller bolts and the outer damper ring.

If the whole thing looks buggered .....

CharlesY

only taken off the outer ring. not started it yet as unsure about starting it ithout the 3 bolts in it. the rubber in the outer ring is dry and perished. the rubber in the pulley section (still attached to car) is soft. when i move the inner pulley by hand, the section where the outer ring doesnt move

jsbholden said:

only taken off the outer ring. not started it yet as unsure about starting it ithout the 3 bolts in it. the rubber in the outer ring is dry and perished. the rubber in the pulley section (still attached to car) is soft. when i move the inner pulley by hand, the section where the outer ring doesnt move

Click to expand...

It's hard to say without seeing the thing, but it sounds very like the multi-part pulley is coming apart because the rubber bonding is perishing or rotting. If it disintegrated while you were cruising the slab at 65 mph you could do a lot of damage.

Assuming you know the nosie was apparent even in neutral, you can run the engine up for a minute or two with the belt off and the pulley as it is.

Then you will know it is something to do with the pulley or the belt driven things.

Don't forget to re-assemble the pulley before driving!

Where are you? Ask if there's a LandyZoner near who could have a look for a second opinion. Then try around for a replacement pulley.

CharlesY

CharlesY, i'll email you the pics. I'm sure it must be the source of the problem. will run it up tomorrow and see if its any better without the outer section

oh, and I'm just outside Matlock, Derbys.

jsbholden said:

CharlesY, i'll email you the pics. I'm sure it must be the source of the problem. will run it up tomorrow and see if its any better without the outer section

oh, and I'm just outside Matlock, Derbys.

Click to expand...

Oh .... it's a bit far from to nip over and have a look!
250 miles each way I reckon ...

I can only just see movement in my pulley if I apply serious leverage with a big screwdriver. If yours is soft or floppy I reckon it's a gonner.

CharlesY

After looking at the engine while the wife brought the revs up, i'm sure it a misfire or something like that by the way that the engine "shuddered" between 2300 and 2500 rpm.

Could it be caused by a turbo boost problem?

The tuirbo will have no effect in that condition of running under no load.

RULE OUT TURBO!

Misfire or something loose or out of balance.

CharlesY

what about low fuel pressure? did appear to be a bit gutless on high revs (see other post about air in fuel!)

When did YOU last change the fuel filter .... you have changed it .... right ?

CharlesY

Yesterday! but cant get air out of the system. 10 times tried to purge it and the pumps still gargling and making some very odd noises! thought i'd stepped on the cats tail!

UPDATE!!!!

Fitted a new battery tonight, started straight away and.......... from first impressions when reving engine on drive......vibration gone!

so it was caused by one of these things (if cured! will road test later!)

Incorrect injector adjustment
Blocked fuel filter (although have checked service book and it was last done 5K ago)
or a Knacked battery

NEVER EVER take a TD5 more than 100 yards from your door unless you have TWO spare fuel filters in the back.

It filters the fuel MUCH more finely than usual filters, and quite a small amount of crap or water will snooker you. The TD5 (Disco and Defender) can be stopped by dirty fuel that other diesels will pass.

It's a easy job even on the motorway - IF YOU HAVE A SPARE.

I have changed two on the roadside. Both times the engine was cruising fine till I had to slow down and let teh engine idle. It didn't. It stopped and would not start.

Change filter, purge fuel by pedal-decking procedure, and drive away as if nothing ahd happened.

But that's IF you have the spare filter!

CharlesY

Spoke too soon!!!! was fine for the first few 100 meters then the vibrating/missing started again, although no where near as bad is before. when parked up and reved it can hardly be felt. Is it worth getting the fuel pressure checked?

My own suspicion now is that you may have a gas leak from a copper washer at an injector tip.

If this is the problem, it will not get better.

What happens is that gas gets into the fuel rail from the leaking injector and screws up the fuel supply into all the injectors nearer the front of the engine than the affected one. Misfire.

If you cannot find any other cause, have a go at this. It is a DIY job with care,

CharlesY

have been using the disco for a couple of days and have found it to be much better. I've also noticed that if i do a lot of stop starting driving (engine off, engine on) the misfire dissapears for a bit. now i'm puzzled!