waste gate fault ??

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spliffy
Posts: 99
Joined: 12 Jun 2005, 00:30
Location: United Kingdom
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waste gate fault ??

Post by spliffy »

hi every one last week the beloved xantia ( 20.l t ) back fired loudly ( because of a fault with the lpg now sorted ) it immediately lost its boost pressure i could hear the waste gate leaking all the time . iv just taken off the front pipe and the waste gate disc and seat behind seem fine what else could of been damaged ? i was expecting to see a damaged waste gate . what do you all think cheers once again .
Spliffy
have owned : renault 21,mk1 megane 1.6 8v
currently own renault megane grand scenic ( 1.9 dci privelige )
currently own renault megane coupe 1.6 16v
XantiaMan
Posts: 1603
Joined: 12 Aug 2007, 18:47
Location: Norwich, Norfolk
My Cars:
x 17

Post by XantiaMan »

Wastegates are tough, they have to be because of the extreme temperatures they are exposed to. Also, you wont hear a wastegate, ever, its location inside the turbo outlet elbow and sealed with the front pipe means its impossible, it also doesnt make any noise!

Far more likely, a boost pipe has popped off or split. The favourite is the small joiner on top of the turbo to the outlet pipe, these get hardened and fatigue with age, a very fiddly fix too, like most thing on the CT engine.
spliffy
Posts: 99
Joined: 12 Jun 2005, 00:30
Location: United Kingdom
My Cars:

Post by spliffy »

no split pipes
Spliffy
have owned : renault 21,mk1 megane 1.6 8v
currently own renault megane grand scenic ( 1.9 dci privelige )
currently own renault megane coupe 1.6 16v
XantiaMan
Posts: 1603
Joined: 12 Aug 2007, 18:47
Location: Norwich, Norfolk
My Cars:
x 17

Post by XantiaMan »

spliffy wrote:no split pipes
Bet there is. Check all pipes are secure. Even the inlet pipe from the air filter to turbocharger, the bellow section can split and causes alot of noise.
spliffy
Posts: 99
Joined: 12 Jun 2005, 00:30
Location: United Kingdom
My Cars:

Post by spliffy »

hi all was the intercooler in the end a foot long crack in it luckily i had a spare
Spliffy
have owned : renault 21,mk1 megane 1.6 8v
currently own renault megane grand scenic ( 1.9 dci privelige )
currently own renault megane coupe 1.6 16v
XantiaMan
Posts: 1603
Joined: 12 Aug 2007, 18:47
Location: Norwich, Norfolk
My Cars:
x 17

Post by XantiaMan »

Ok, so something was split then?
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