Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: OldTDowner on 25 January 2010, 10:06:33

Title: TD cold start probs
Post by: OldTDowner on 25 January 2010, 10:06:33
Hi...
New here from another site. Ive got a non starting TD in this recent cold weather. The battery and alternator are both good and I've been told the glow plugs are also good. I have dismantled and cleaned the in tank pump and it is good too . As I turn the engine it nearly fires but wont and as i turn her over I get the usual blanket of smoke as it turns. It has on occasion started but rarely and when it does a huge pall of smoke comes out. Is there such a thing on this BMW engined car as a fuel heater? If so should I be looking to replace it? I dont know what else I should do as this now has me foxed. Although an old girl (1998) I am loathe to get rid of her. I wouldnt get much for her anyway and she's only done 90000 (genuine)
Please Please Please help me if at all possible.
Thanks...Mike
Title: Re: TD cold start probs
Post by: TheBoy on 25 January 2010, 13:29:52
Glow plugs and fuel heater (part of filter housing) would be first ports of call. Glow plugs most likely.  Dead easy to check on 2.5TD as well.


Welcome to OOF :D
Title: Re: TD cold start probs
Post by: Welung666 on 25 January 2010, 13:43:38
Where abouts are you OldT?
Title: Re: TD cold start probs
Post by: OldTDowner on 25 January 2010, 16:14:25
Hi again
I'm in Scotland...Ayrshire.

How do I check/test the glow plugs? ''Easy'' you say?  I hope so.

Cheers...Mike
Title: Re: TD cold start probs
Post by: TheBoy on 25 January 2010, 17:45:40
In relay box is a connector along top edge. Unplug. You will see that six of the wires are in a set of connectors near easy other.  Measure from each of these to 0v, each should be approx 1ohm
Title: Re: TD cold start probs
Post by: steve2.5cd on 25 January 2010, 18:21:11
Its the glow plugs. Just fixed the same problem with 2 new ones.
Title: Re: TD cold start probs
Post by: Shackeng on 25 January 2010, 18:21:13
Quote
In relay box is a connector along top edge. Unplug. You will see that six of the wires are in a set of connectors near easy other.  Measure from each of these to 0v, each should be approx 1ohm

That sounds helpful, where exactly is that TB  :y
Title: Re: TD cold start probs
Post by: TheBoy on 25 January 2010, 19:44:21
Quote
Its the glow plugs. Just fixed the same problem with 2 new ones.
Change all 6 together. If 2 are gone, the other 4 are ready to let you down.
Title: Re: TD cold start probs
Post by: TheBoy on 25 January 2010, 19:44:48
Quote
Quote
In relay box is a connector along top edge. Unplug. You will see that six of the wires are in a set of connectors near easy other.  Measure from each of these to 0v, each should be approx 1ohm

That sounds helpful, where exactly is that TB  :y
Bloody great triangular box next to battery :y
Title: Re: TD cold start probs
Post by: Pitchfork on 25 January 2010, 19:52:52
Quote
Quote
Its the glow plugs. Just fixed the same problem with 2 new ones.
Change all 6 together. If 2 are gone, the other 4 are ready to let you down.
& don't be tempted by the cheap ones on e-Bay, buy the OEM Beru or Bosch
Title: Re: TD cold start probs
Post by: Welung666 on 25 January 2010, 20:49:24
I've fitted NGK's to mine with no problems :y
Title: Re: TD cold start probs
Post by: hoofing it on 25 January 2010, 21:24:05
have you done the paper clip test :question
you should replace all glowplugs.
whens the last time fuel filter was replaced
Title: Re: TD cold start probs
Post by: Seth on 25 January 2010, 21:32:50
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I've fitted NGK's to mine with no problems :y

Same here - still performing well after three years.
Title: Re: TD cold start probs
Post by: Seth on 25 January 2010, 21:34:44
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Quote
Its the glow plugs. Just fixed the same problem with 2 new ones.
Change all 6 together. If 2 are gone, the other 4 are ready to let you down.

Yep - and especially due to the work involved!
You don't want to remove all the inlet manifold etc too often.
Title: Re: TD cold start probs
Post by: Turk on 25 January 2010, 21:41:43
Quote
Quote
I've fitted NGK's to mine with no problems :y

Same here - still performing well after three years.
Yep, used NGK's on both my Tractors. Almost daily use with my first one for 5 years and current one is now in third year.
Title: Re: TD cold start probs
Post by: OldTDowner on 25 January 2010, 21:53:44
Hi again and thanks for all the info!
Just one thing...is there a specific procedure for removal of the glowplugs? I have heard for example that No6 closest to the bulkhead is a bit of a pig...Does much have to be removed?

Thanks again...Mike.
PS..no I havent done the paperclip test yet.
Title: Re: TD cold start probs
Post by: OldTDowner on 25 January 2010, 21:59:02
Just another thought...

When it does start it runs like a dream, so if a glowplug or two had gone, would it not also affect the general running of the car?
As I said...just a thought.
Mike
Title: Re: TD cold start probs
Post by: Welung666 on 26 January 2010, 06:03:22
Quote
Just another thought...

When it does start it runs like a dream, so if a glowplug or two had gone, would it not also affect the general running of the car?
As I said...just a thought.
Mike

No, the GP's are only used for a cold start, it's the fuel heater that's on and off as your running in cold weather :y
Title: Re: TD cold start probs
Post by: Seth on 26 January 2010, 08:56:59
Quote
Hi again and thanks for all the info!
Just one thing...is there a specific procedure for removal of the glowplugs? I have heard for example that No6 closest to the bulkhead is a bit of a pig...Does much have to be removed?

Thanks again...Mike.
PS..no I havent done the paperclip test yet.

Basically, you'll need to remove the inlet manifold and 'turbo diesel' plastic jobby.

I find it best to use a deep HEXAGON-type socket (rather than bi-hexagon type), as it reduces the risk of rounding-off the plug nut.
Title: Re: TD cold start probs
Post by: OldTDowner on 27 January 2010, 20:13:29
Thanks for all help...
I'll do the glowplugs then next time I have some .(time)
I have heard also that sometimes a plug or two can ''fuse'' to the head...is that true? If so what on earth can be done then?? Would still like to know if there is a ''how to'' on this subject too if poss.

Thanks again in anticipation etc...  Mike.