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leaky turbo
Posted: Sat Aug 08, 2015 8:08 am
by punkrawker
is it a common problem for the turbos to leak oil everywhere on these rigs? thought i had fixed it by tightrn up some lines but looks like i guessed wrong, any thoughts?
Re: leaky turbo
Posted: Sat Aug 08, 2015 10:29 am
by Lapprentis
Re: leaky turbo
Posted: Sat Aug 08, 2015 10:53 pm
by Growlerbearnz
The short flexible pipe which connects the turbo outlet to the intake manifold can leak a bit when it gets old, and if there's oil in the airstream then it'll get everywhere. Tightening the clamps on the short pipe can help, but you're better off replacing it with a new length of silicone pipe.
(The oil in the airstream usually comes from the engine: a worn engine can throw a lot of oil out the rocker cover vent, which gets sucked into the turbo. Check the flexible hose going into the turbo- if it's wet with oil, then it's coming from the rocker cover, not from the turbo's internal seals)
The banjo bolt oil feed on top of the turbo can leak if it's not reassembled correctly- look up the correct torque (something like 7 ft.lb, I think) and either anneal the copper washers before re-use, or use new ones.
The turbo oil drain sometimes leaks from the paper gasket, or the drain hose can become cracked.
Re: leaky turbo
Posted: Mon Aug 10, 2015 8:10 am
by punkrawker
is it possible to find a kit to replace all the lines for the turbo with stainless or hitemp silicone?
Re: leaky turbo
Posted: Sat Aug 15, 2015 9:30 am
by FalcoColumbarius
Growlerbearnz wrote:....The banjo bolt oil feed on top of the turbo can leak if it's not reassembled correctly- look up the correct torque (something like 7 ft.lb, I think) and either anneal the copper washers before re-use, or use new ones. ...
It's twelve foot pounds and that is less pressure than on your standard pistol trigger.
To add to Growlerbearnz's observations:
When I did mine I thought "twelve foot pounds... how much does twelve pounds weigh.... yeah, that has some weight" ~ I then proceeded to twist the banjo bolt head off the bolt. Get a torque wrench. I have learned through experience, then guidance, that foot pounds has a lot to do with the leverage of one foot in length combined with the given weight and with twelve pounds that amounts to just over nothing.
Falco.
