I am fitting a remote oil filter plate which gives me the opportunity to install a Tee piece where the oil return is in the center, allowing me to
conveniently place the oil return for the turbo.
Anyone got any hydraulic fittings? Ive tried cocking arounf with plumbing fittings which has cost me £20 so far, and im no further on.
In my experiments, i also cut the 16mm olive off of the union which i now need to replace.
Anyone work with hydraulics? I need a Tee, replacement union / hose, "Garden Hose" take off for the 5/8" turbo return.
?
Double ??
You cant return oil into the filter circuit, it is under pressure in there.
Usual way is a union welded ito the sump, above the oil level.
It is under pressure, but the return from the turbo is also under pressure, and the flow direction would allow this to work.
Its your engine build it your way but,
The oil filter is between the pump and moving parts, so neither hose to the filter is a return in reality. The pressure in those hoses will be the
same as the feed to your turbo, maybe slightly higher, so there will be insfficient flow round your turbo, the direction of flow round the filter
hoses is irrelavent.
Dont forget the turbo needs maximum flow possible, for lubrication and cooling, the only way to achieve that is engine oil pressure in, zero
resistance out, i.e. back to the sump.
as above, you will be running your engine on oil via the turbo seals if you pipe it that way!!
quote:
Originally posted by MakeEverything
It is under pressure, but the return from the turbo is also under pressure, and the flow direction would allow this to work.
Ive just realised that i hadnt mentioned on this thread, that the oil FEED is from the high pressure rail, from the oil pump.
The return will be at less pressure than the feed (Slightly) and the negative pressure will permit the oil to return correctly.
Ive now finished the air hoses, and will probably put a pickup into the sump once ive tested.
But any pressure on the return side means the flow will be slow, you need lots of flow through the turbo to try to keep the bearings coolish and to
stop the oil from cooking/boiling.
That said if you need a T try a local hydraulics distributor or even Pirtek
whats wrong with returning the oil to the sump?
as said above oil flow is crutial for a turbo. a higher difference in pressure will mean more flow...
quote:
Originally posted by dinosaurjuice
whats wrong with returning the oil to the sump?
as said above oil flow is crutial for a turbo. a higher difference in pressure will mean more flow...
quote:
Originally posted by MakeEverything
Ive just realised that i hadnt mentioned on this thread, that the oil FEED is from the high pressure rail, from the oil pump.
The return will be at less pressure than the feed (Slightly) and the negative pressure will permit the oil to return correctly.
Ive now finished the air hoses, and will probably put a pickup into the sump once ive tested.
ok, the penny is dropping now....
Thanks guys, ill use my spare sump to attach a fitting, and swap them over.