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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Best way to attach/modify turbo manifold please?
Hi all

Quick question...

I just found my turbo dangling (again) as 2 studs attaching it to the exhaust manifold had fallen out and the remaining nut was off. I know some members have got around this problem so I just wanted some advice.

Do you reckon it's better to replace the studs again and use nuts (as original but possibly flawed design), or use bolts? If bolts, carbon steel or stainless? I know carbon steel is stronger but I don't think the bolts need to be particularly strong, just stay tight on repeated heating and cooling. I don't know how stainless behaves with heat, or if it grips better...

I have temporarily fixed it with 2 stainless bolts and a stud with a stainless nut, so I'd like a good reason to change setup before I pi$$ around in the cold some more.

Many thanks
Matt Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #211685 16th Feb 2013 4:48pm
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big steve



Member Since: 24 Dec 2009
Location: hertfordshire
Posts: 2456

United Kingdom 2015 Defender 90 Puma 2.2 HT Montalcino Red
Buy original LR nuts and studs only way I could cure the problem specially if it had been on and off a few times 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P
hybrid turbo in build -done ready to fit
ashcroft atb in transfer box
6 speed auto in build
Post #211745 16th Feb 2013 8:20pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Thanks Steve.

How do you get the studs in tight enough? The only one that hadn't fallen out had nothing to tighten it with (splines/socket etc).

Cheers
Matt Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #211781 16th Feb 2013 9:27pm
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Glynparry25



Member Since: 16 Feb 2009
Location: Miserable Midlands
Posts: 3015

Wales 2009 Defender 110 Puma 2.4 XS DCPU Tonga Green
Always use studs Thumbs Up

Best way to do it is use a high temp thread lock... then using two nuts locked against each other it will allow you to screw them in tight.

The nuts should be locking nuts anyhow but nothing to stop you then adding a little thread lock on them too.

Glyn Dog Sheep
Post #211785 16th Feb 2013 9:35pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Cheers Thumbs Up

For ignorant oiks like me, what's the advantage of using studs in an exhaust manifold, other than ease of assembly Confused
Something to do with extracting them after corrosion, perhaps?

Matt Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #211790 16th Feb 2013 10:02pm
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big steve



Member Since: 24 Dec 2009
Location: hertfordshire
Posts: 2456

United Kingdom 2015 Defender 90 Puma 2.2 HT Montalcino Red
Iv tried high temp thread lock and its a waste of time just do them as tight as you can with 2 nuts just not the nuts your going to fit it with as they are closed slightly so you will tighten the stud as well as tighten the nut but as said you must use genuine LR
Strve 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P
hybrid turbo in build -done ready to fit
ashcroft atb in transfer box
6 speed auto in build
Post #211826 17th Feb 2013 12:33am
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me@td5.org



Member Since: 16 Jan 2011
Location: Warwick
Posts: 856

2000 Defender 90 Td5 HT Epsom Green
ZeDefender wrote:
Cheers Thumbs Up

For ignorant oiks like me, what's the advantage of using studs in an exhaust manifold.

Matt


Always best to have at least 2 studs to help locate the gasket. During use it makes no difference. Maybe, given this isn't an isolated problem someone should develop an uprated kit for the Puma like those available for the TD5. IRB and JE engineering both do this for the TD5 so may be able to do similar.
Post #211882 17th Feb 2013 12:31pm
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Porny
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Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 799

 
I can supply some uprated studs and proper lock nuts Thumbs Up

Drop me a pm if required.


Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #212101 18th Feb 2013 1:20pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Thanks Ian
How are they uprated?
(Just ordered some standards from Paddocks Rolling Eyes ) Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #212104 18th Feb 2013 1:34pm
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Porny
Site Sponsor


Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 799

 
ZeDefender wrote:
Thanks Ian
How are they uprated?
(Just ordered some standards from Paddocks Rolling Eyes )


They are a proper high temp K nut. I fit these a lot and have never had any problems.


Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #212106 18th Feb 2013 1:44pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
PM sent Thumbs Up Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #212163 18th Feb 2013 5:10pm
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