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Tribord



Member Since: 20 Apr 2013
Location: France
Posts: 220
France 2011 Defender 110 Puma 2.4 XS DCPU Zermatt Silver
2.4 intercooler hose slipping and whooshing
I have a problem with the RH intercooler hose (PNH500670) slipping down from its to turbo connection. I know when this happens because of the whooshing/whistling I get from the leak. Leave it too long and and it drops far enough to be attacked by the steering column. It used to be a while before this happened, but now is just a few days before it starts slipping down. I have been using replacement genuine hoses that come with the fastening clips attached, and ensure these are tightened right up.

Could it be a problem with the fastenings (I have tried two genuine parts replacements) or could it be indicative of another problem, forcing it off?

btw, I have a BAS re-map and larger intercooler.
Post #1048608 14th Oct 2024 12:22pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1947
United Kingdom 
Make sure the inside of the hose is very clean and free from oil, also make sure the spigot on the turbo is very clean and free from oil. Brake cleaner is useful for this.

Regarding hose clamps. The HCL super torque or MIkalor ASFA High torque clamps are good and can take 11-12 Nm, which should be sufficient to retain a clean hose on a clean turbo spigot.

https://hcl-clamping.co.uk/collections/high-torque-clamps-1
Post #1048613 14th Oct 2024 1:04pm
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Tribord



Member Since: 20 Apr 2013
Location: France
Posts: 220
France 2011 Defender 110 Puma 2.4 XS DCPU Zermatt Silver
Many thanks, I have ordered some of those clamps.

The hose is new, so any oil will be recent. I do remember seeing some oil when I removed the old hose though.

What is the best way to clean the spigot? Do I need to remove the turbo?
Post #1048643 14th Oct 2024 3:47pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 64
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
Clean the spigot with cloth sprayed with brake clean.
Post #1048677 14th Oct 2024 7:22pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1947
United Kingdom 
No need to remove the turbo, just spray spigot with brake cleaner from below and above, it evaporates pretty quickly. Any bits you can’t get to with spray then spray on cloth and wipe. You can spray the inside of the hose as well, or spray on cloth and wipe.
Post #1048681 14th Oct 2024 7:45pm
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Tribord



Member Since: 20 Apr 2013
Location: France
Posts: 220
France 2011 Defender 110 Puma 2.4 XS DCPU Zermatt Silver
many thanks, I have just done that, albeit with the same clamp for the time being (waiting for new ones to arrive). From what I could see, it all looked quite clean to me. Will keep a close eye on the hose and see if it moves again over the coming days.
Post #1048770 15th Oct 2024 6:16pm
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