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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2755
United Kingdom 
Series 3 2.25 petrol blue smoke
I know this isn't really a series forum, but figured it's worth an ask.

Our series three tends to produce a (fairly significant) puff of blue smoke when you pull away having been idling (ie at lights).
To me this indicated oil passing the piston rings and being burned off when you pull away?

Also it's never been (as far as I know) altered to run on leaded fuel, is this even a problem on a 1983? I know some cars just don't care.

It's only done 24,000 miles and very good nick otherwise.

Appreciate any advice,

Cheers,

David Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #504033 12th Feb 2016 6:57pm
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Mash



Member Since: 09 Feb 2015
Location: Guernsey
Posts: 1674
Guernsey 1998 Defender 90 300 Tdi HT Nato Green
It could be worn piston rings, have you taken the plugs out and inspected them? You can tell a lot by the state of them.




Click image to enlarge



Better pic added 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html
110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html
52HG25 lightweight https://www.defender2.net/forum/topic72342.html
D3 Hse - Fiona
Capri 2l S - Anna

Think I might have a problem............

Last edited by Mash on 12th Feb 2016 7:04pm. Edited 1 time in total
Post #504034 12th Feb 2016 7:00pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2755
United Kingdom 
That was my thoughts, good to know I can make a bit of sense sometimes! Not done anything yet. Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #504036 12th Feb 2016 7:04pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17391
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It could also be the valve guide oil seals (O rings) in need of replacement.
Post #504046 12th Feb 2016 7:25pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2755
United Kingdom 
Woops wrong thread!

Thanks for the advice Smile Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #504089 12th Feb 2016 9:00pm
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Gonarezhou



Member Since: 08 Mar 2015
Location: White River
Posts: 178
South Africa 2015 Defender 110 Puma 2.2 SW Alaska White
Never had one that doesn"t ! And that is with some many many years of experience. It is normal ........ Black smoke is a different story1
Post #504096 12th Feb 2016 9:07pm
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Cheshire110



Member Since: 26 Jul 2013
Location: Cheshire/London
Posts: 2755
United Kingdom 
Yep not really worried about it at all.

Any thoughts on unleaded conversion? At the moment we use additive but it's a bit of a pain, interested to know if a conversion's necessary. Cheers, David
Land Rovers of all shapes S3 onwards… Daily is a 110 V8.
Post #504099 12th Feb 2016 9:09pm
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Gonarezhou



Member Since: 08 Mar 2015
Location: White River
Posts: 178
South Africa 2015 Defender 110 Puma 2.2 SW Alaska White
David I ran an old Series III for two years on Unleaded 101 Octane Avgas in the Zambezi valley of Zimbabwe....worked hard and actually never missed a beat even when my Cruiser electrics were causing me nightmares!
Post #504102 12th Feb 2016 9:15pm
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Gonarezhou



Member Since: 08 Mar 2015
Location: White River
Posts: 178
South Africa 2015 Defender 110 Puma 2.2 SW Alaska White
Actually I don't as many think the blue smoke comes from oil passing through the rings (and I have reasons for this) my own speculation is that the oil ingresses through the valves by seeping in through the valve stem seals....just my own thought.
Post #504107 12th Feb 2016 9:20pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
davidwhittaker wrote:
Yep not really worried about it at all.

Any thoughts on unleaded conversion? At the moment we use additive but it's a bit of a pain, interested to know if a conversion's necessary.



http://www.turnerengineering.co.uk/acatalog/2.25_Petrol.html at bottem of the page unleaded converion heads inp and metic
Post #504109 12th Feb 2016 9:24pm
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Trebro



Member Since: 28 Jan 2016
Location: Hampshire
Posts: 241
United Kingdom 2009 Defender 130 Puma 2.4 HCPU Stornoway Grey
I had oil coming up the head and being blown through the rocker cover breather back into the inlet manifold. Head gasket had blown between cylinders and subsequently exhaust n inlet valves were burnt.
Maybe best to try a compression test first then work from there?
Post #504138 12th Feb 2016 10:14pm
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Trebro



Member Since: 28 Jan 2016
Location: Hampshire
Posts: 241
United Kingdom 2009 Defender 130 Puma 2.4 HCPU Stornoway Grey
dorsetsmith wrote:
davidwhittaker wrote:
Yep not really worried about it at all.

Any thoughts on unleaded conversion? At the moment we use additive but it's a bit of a pain, interested to know if a conversion's necessary.



http://www.turnerengineering.co.uk/acatalog/2.25_Petrol.html at bottem of the page unleaded converion heads inp and metic


I tried additive for a while in my 5 bearing engine, then read that it wasn't required in the 5 bearing engines, I noticed no difference driving without additive, ironically I found using 97 Ron petrol made it run poorly.
Post #504141 12th Feb 2016 10:18pm
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