Vehicle & Technical > Defender

poor starting 90 - getting there

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drmike:
I'm not sure which diesel pipes you refer to but shouldn't you be concerned about the pipes the tank side of the pump? They could suck air in but any pipe with the smallest leak is bad news isn't it?

What about the banjo unions at the injectors for the return? Are they sound as I understand they can come loose and also leak, they use copper spring valves don'y they?

I once had a cut off solenoid on a VW engine that was intermittent faulty causing very poor running. This isn't your problem but could it be stuck closed or gummed up when you try to start?

I have no idea how much they cost but it can't be much.

Mike

Matt_H:
Thanks for the things to think of...I'm not sure about the tank side of the pump, my thinking is that the pump should seal against going back and the filter etc should hold enough fuel if pre pump had air leaks, not sure how valid that is though!

I did look at the returns but didn't specifically check them.

I think there is a leak somewhere, as well as lack of glow plugs causing the problem... but the baffling thing is where is the oil coming from on the injector shafts?

I've checked the proper manual but it doesn't have a layout of the head so no idea if they get close to oil ways or not. :(

Thanks
Matthew

hobbit:
I think Matt as already said, might be worth getting it compression tested

Would reveal at least if there is a prob there. What condition are the valve stem seals?

Matt_H:
no idea about vlave stem seals - takign engines apart isn't really my area... I'll do it with help but I've never done a landy one and these thigns normally turn into "I wish I hadn't started this one"

Well this morning was warm enough not to need heat... She started first time, but I had to give her a bit of throttle, as soon as I came off the thottle she went very lumpy then wouldn't respond for about 20 seconds.

Now we know the glow plugs aren't working, tick over is probably too low which is not helping... I guess stem seals would explain oil - but why is it not being burnt off?!  Hmm

Oh well time to stop thinking and make my way home from work.

Matthew

hobbit:
If you have the rocker cover off, they fit on top of the cylinderhead round the valves and seal the oil from getting down the shaft into the pots, look through the valve springs, and see if there are any caps on the valves, give them a poke with a small screwdriver and see if they are soft rubber or hard

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