Smokey TD5 possible valve problem?

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Originally Posted by Graeme

If white smoke then I would check the tension on the injector clamp bolts. Had I known at the time, that smokey TD5 esp while idling problem could have been resolved simply by retorquing those bolts.

The squeak from the front could be a cracked harmonic balancer, where the 3 bolts hold the balancer to the pulley but also the bearing in the belt tensioner.

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I will check injector clamps this afternoon!

I am hopeful that it is not the harmonic balancer because I dont have a 480nm torque wrench but am aware that it might be, this disco likes to challenge me. I am going to look at the tensioner next although the pulley there feels smooth.

Thanks

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Originally Posted by Designosaur

Hi Tins,

I think that my HAHA was not obvious enough! I was just laughing that I was not the only one who had a Disco sitting around for this long. This was a non serious answer which was why I put it separate.

Thanks for the input on my question it is most appreciated.

I would have to rate the smoke colour more towards white, definitely not black and I don't think it's blue.

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Fair enough. Maybe I was a bit tetchy. Long day.

And yeah, white smoke is usually, on a TD5, fuel. Not many things burn white. Brake fluid and ATF will, but they're not relevant here.

If the smoke is white on a diesel it's usually injector timing - check the cam timing.

Or injector pressure - check your bump clearance.

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Originally Posted by Designosaur

I am hopeful that it is not the harmonic balancer because I dont have a 480nm torque wrench

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I was referring to the section that bolts to the pulley itself with 3 bolts. I ran one of my TD5 D2s for most of its time with me with the balancer removed.

Small update, injector clamps were bolted down to spec. I am going to pull the injectors and have a look at the seals and orings on the weekend and then redo the injector clearances.

Stay tuned.

Quote:

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Originally Posted by Designosaur

Small update, injector clamps were bolted down to spec. I am going to pull the injectors and have a look at the seals and orings on the weekend and then redo the injector clearances.

Stay tuned.

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I reckon shack is probably right. You've had the head off. Check the cam timing. He seems to know his stuff.

I was in a hurry....I should clarify my post slightly, cam timing being out won't actually change SOI on a TD5, it will obviously have incorrect valve timing, and incorrect injector pressure which will affect fuel delivery and quite likely atomisation (depending on which way the cam was out), which will in turn cause poor combustion.

It's most likely one of the 2 things I mentioned, if not exactly as I mentioned!

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Originally Posted by shack

I was in a hurry....I should clarify my post slightly, cam timing being out won't actually change SOI on a TD5, it will obviously have incorrect valve timing, and incorrect injector pressure which will affect fuel delivery and quite likely atomisation (depending on which way the cam was out), which will in turn cause poor combustion.

It's most likely one of the 2 things I mentioned, if not exactly as I mentioned!

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HI Shack, so to clarify checking cam timing, I need to make sure that the two coloured chain links line up with the mark on the sprocket and the slot on the cam lines up like in the manual pic?

Attachment 175406

Thanks

Quote:

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Originally Posted by Designosaur

HI Shack, so to clarify checking cam timing, I need to make sure that the two coloured chain links line up with the mark on the sprocket and the slot on the cam lines up like in the manual pic?

Attachment 175406

Thanks

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There is a slot in the cam that takes a locating pin, and a hole in the flywheel that also does, if both of those line up you should be in business.

I think we made a threaded Bush that screws into the threaded hole in the bellhousing, then you can simply slide the correct size locating pin in through it into the flywheel.

I can't remember the sizes for the pins sorry.

Flywheel Camshaft Timing Locking Pin Set suitable for Td5 Defender Discovery 2 5018341040529 | eBay