White smoke

Landy Hugger · Jul 11, 2022

Question please.
My TD5 was starting to get hard to start so I replaced the injector seals now it start first time every time without an problem. Only thing now is that each time I start it I get a lot of white smoke from the exhaust. Checked the see if any fuel was coming out of the injector seals but all okay. Think I have diesel in the oil as it looks like the level is very high. but hard to see level as oil newly replaced. Apart from the head being cracked can it be something else.

Thanks

Landy Hugger · Jul 11, 2022

Going by some of the threads on this, its looking like an issue with the fuel injectors? That would explain me trying to clean them and went overboard as usual. Any thoughts?

Discodevon · Jul 12, 2022

If I was you I’d check that the timing is 100 percent correct ( injector timing and cam timing by locking the flywheel ) did you use genuine seals and washers?

Landy Hugger · Jul 13, 2022

Discodevon said:
If I was you I’d check that the timing is 100 percent correct ( injector timing and cam timing by locking the flywheel ) did you use genuine seals and washers?

Hi Discodevon thanks for the reply.
I followed the website (www.discovery2.co.uk / TD5 Engine - Injector Seal Replacement) and used Bearmach parts. The only thing that confused me was the refit of the rocker shaft. The tightening down of the adjusting screw until you feel the injector plunger bottom out. Do you tighten down until you can tighten no more and then back off 1 complete turn?
Was also talking to a friend that is a mechanic, and after telling him I over cleaned the injectors with wet & dry paper etc., he told me to get them test, which I am next week. What do you think.

JimS · Jul 13, 2022

Is it just on start up after sitting for a while you get the white smoke and then it clears, or all the time

Discodevon · Jul 13, 2022

Landy Hugger said:
Hi Discodevon thanks for the reply.
I followed the website (www.discovery2.co.uk / TD5 Engine - Injector Seal Replacement) and used Bearmach parts. The only thing that confused me was the refit of the rocker shaft. The tightening down of the adjusting screw until you feel the injector plunger bottom out. Do you tighten down until you can tighten no more and then back off 1 complete turn?
Was also talking to a friend that is a mechanic, and after telling him I over cleaned the injectors with wet & dry paper etc., he told me to get them test, which I am next week. What do you think.

Yes that’s correct, if you had followed the procedure of discovery 2 site, I would bite the bullet and by genuine injector seals and washers though, the fuel system on the td5 engine is precarious at the best of times and you are going to have to take it all apart again to have them tested anyway

Landy Hugger · Jul 13, 2022

Discodevon said:
Yes that’s correct, if you had followed the procedure of discovery 2 site, I would bite the bullet and by genuine injector seals and washers though, the fuel system on the td5 engine is precarious at the best of times and you are going to have to take it all apart again to have them tested anyway

Thanks again. Will put in the OEM seals. I know when I was cleaning the injectors I was going over the top.

Landy Hugger · Jul 13, 2022

JimS said:
Is it just on start up after sitting for a while you get the white smoke and then it clears, or all the time

Hi Jim5 thanks for the reply.
White smoke all the time. On startup just a little put when you put the throttle down a lot. If you let it tick over it’s only a small amount but every 30 seconds or so it changes to a larger amount then back to small.

tom1979 · Jul 13, 2022

Landy Hugger said:
Thanks again. Will put in the OEM seals. I know when I was cleaning the injectors I was going over the top.

Use genuine, not OEM.

Landy Hugger · Jul 14, 2022

tom1979 said:
Use genuine, not OEM.

No problem, will let you know how the injector test going when the person comes back from holiday

Landy Hugger · Jul 29, 2022

Hi
Update on what’s happening. Just got the five injectors back and now £900 lighter in the pocket. All five had cracks and burnt injector tips.
I took photos and the injectors numbers down to they can go in the same way as taken out but was told it makes no difference as all the injectors will need reprogrammed to the discovery 2.
Is this right and have I taken all the details down for nothing.

Thanks
John

sierrafery · Jul 29, 2022

Hi, if those who repaired the injectors didnt put new codes on them and you put them back in the same order there's nothing to reprogram cos the codes are already saved, Noo new codes means that the injectors were only cleaned not rebuilt which would not justify a £900 bill. If the injectors were repaired with new parts those who did it should have put new codes on them but that needs a very expensive equipment which many shops dont have. Depends on the fuel map version but the lack of coding would affect the engine's behaviour only at high revs(above 3000rpm) so if it's running well dont stress yourself too much.

Landy Hugger · Jul 30, 2022

sierrafery said:
Hi, if those who repaired the injectors didnt put new codes on them and you put them back in the same order there's nothing to reprogram cos the codes are already saved, Noo new codes means that the injectors were only cleaned not rebuilt which would not justify a £900 bill. If the injectors were repaired with new parts those who did it should have put new codes on them but that needs a very expensive equipment which many shops dont have. Depends on the fuel map version but the lack of coding would affect the engine's behaviour only at high revs(above 3000rpm) so if it's running well dont stress yourself too much.

Hi
Unfortunately a complete rebuild with new codes, I had them all in order from front to back with code beside each one and photos taken. But have been told by Bosh injector system how repaired than that I will need then coded to the discovery.
Does it matter if they are not put in the right order? And how much would it cost to get the recoding done or would it work out cheaper to get the Discovery 2 remapping for more power.

Thanks
John

sierrafery · Jul 30, 2022

If they have new codes they have to be saved as they are from injector 1 to 5 starting from the front, a remap has nothing to do with the codes. I dont know how much would charge somebody for saving the codes which once you have them on paper in order it's a 3 minutes job with the proper diag tool, a remap is more expensive that's sure.

Landy Hugger · Jul 30, 2022

sierrafery said:
If they have new codes they have to be saved as they are from injector 1 to 5 starting from the front, a remap has nothing to do with the codes. I dont know how much would charge somebody for saving the codes which once you have them on paper in order it's a 3 minutes job with the proper diag tool, a remap is more expensive that's sure.

Thanks for the reply Sierrafery. Does it matter if I no longer know which is one injector or five as the person rebuilding them didn’t keep them in order as I had them.
How much would it cost to buy a diag tool that would do the job? It’s something that could be used time after time.

Thanks
John

sierrafery · Jul 30, 2022

All you have to do is to write down the codes in the order you put the injectrs to know how to save them, it doesnt matter how those injectors were before as now they are like "new". there are more types of scantools able to do that some cheaper others expensive depends how much you want to spend

Landy Hugger · Jul 30, 2022

sierrafery said:
All you have to do is to write down the codes in the order you put the injectrs to know how to save them, it doesnt matter how those injectors were before as now they are like "new". there are more types of scantools able to do that some cheaper others expensive depends how much you want to spend

Hi again for the help.
If I got one around £600 would you know any that would be good for the job.
If I put all the injectors in, when the Discovery start and can I drive it until I get the dIag scan tool.
Thinking if I take it to a garage it’s going to cost me around 400+ to get it done so buying the diag scam tool would pay for its self in the long run.
Thanks
John

sierrafery · Jul 30, 2022

As i already said in post 12 it will run with unocoded injectors

sierrafery said:
Depends on the fuel map version but the lack of coding would affect the engine's behaviour only at high revs(above 3000rpm) so if it's running well dont stress yourself too much.

but it can be unnoticeable as well

Landy Hugger said:
If I got one around £600 would you know any that would be good for the job.

then go for this one https://www.nanocom-diagnostics.com/shop/product/ncom02 which will do everything on your D2

Landy Hugger · Jul 30, 2022

sierrafery said:
As i already said in post 12 it will run with unocoded injectors
but it can be unnoticeable as well

then go for this one https://www.nanocom-diagnostics.com/shop/product/ncom02 which will do everything on your D2

Thanks for the help, with put them in tomorrow and let you know how it goes and order up the scan tool.
Thanks
John

Landy Hugger · Jul 31, 2022

Hi All
Put in the new injectors, still have to get them coded in but still white smoke coming out of the exhaust. Still have to change the oil that has diesel in it, that would make the discovery smoky? Ordered up the nanocom to sort the injector codes but starting to get worried it’s a cracked head. Don’t know how that is.
Could it be bad diesel? As I fitted it before all this started.
Many help would be great thanks
John

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