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stigomery

Member Since: 10 May 2016
Location: Cambridge
Posts: 277

Misfiring on start up

Morning all...

So the TD5 has started misfiring on start up.

I replaced the wiring harness last year and check/clean it about every 2-3 months but TBH there hasn't been any oil in the red socket for quite a while now.

My suspicion lies with the injector seals since the problem goes away after 10-15 minutes, i.e. when the engine has reached temperature.

I have access to a Hawkeye but TBH I don't know what I'm looking for, cylinder roughness is about 2-5% when running but can rise to around +/- 18% when rough.

What's the best diagnosis process?

Is this an easy to do job myself or garage? Do I need special tools to remove the injectors?

Anything I should be careful of?

Thanks,

17th Mar 2020 10:25am

Mdm

Member Since: 11 Sep 2013
Location: Sunny Lancashire
Posts: 1523

workshop job ideally.

not too bad a job to do once you have done once or watched a workshop do it

17th Mar 2020 11:16am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

see below this will give head up on td5 injector seal

http://www.discovery2.co.uk/Injector%20Seals.html

17th Mar 2020 1:19pm

Chris86

Member Since: 15 Jul 2014
Location: South Yorks
Posts: 755

Hi,

Are you getting any mixing of diesel in the oil?

Those numbers for injector balance are a long way out- I believe that +/- 3-5 is good/normal.\

Regards

Chris

18th Mar 2020 1:37pm

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