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Hi all,
Haynes says to replace the high pressure Fuel pipes if they are slackened or removed. Is this really necessary?
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Location: Ipswich
Car Model/Spec: 306 Rallye
In what case? Just generally? Or have you done a specific mod that needs to to be replaced?
If you are going to replace them you need to get the right standard of fuel line.
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I've taken the head off, the people that skimmed the head removed the injectors slightly and I removed the pipe that connects to the fuel rail as I left that attached to the head.
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I usually re-use them, never had a leak before.
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Location: Oxfordshire/Cornwall
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Theoretically you should replace them every time they get removed due to the massive pressure they are under, but everyone I know has re-used them and never had an issue...
(16-05-2016, 10:45 AM)Toms306 Wrote: Oh I don't care about the stripped threads lol, that's easily solved by hammering the bolt in. 
Nanstone GTD5 GT17S - XUD9TE
Volvo V50 D5 R-Design SE Sport - Daily cruise wagon.
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I've always reused them, never had a leak.
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As long as you seat the pipes correctly you will normally be ok. The pipes are flared at the end and are crushed when first used to seal.
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Peugeot say to replace them too but in practice this only happens if they start leaking, if it does worry then
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I didn't change it, its not leaking so all's well.