MakeEverything
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| posted on 14/11/09 at 04:01 PM |
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Hydraulics
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.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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britishtrident
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| posted on 14/11/09 at 06:17 PM |
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?
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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r1_pete
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| posted on 14/11/09 at 06:21 PM |
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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.
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MakeEverything
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| posted on 14/11/09 at 06:46 PM |
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It is under pressure, but the return from the turbo is also under pressure, and the flow direction would allow this to work.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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r1_pete
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| posted on 14/11/09 at 07:47 PM |
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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.
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NS Dev
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| posted on 14/11/09 at 08:06 PM |
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as above, you will be running your engine on oil via the turbo seals if you pipe it that way!!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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rusty nuts
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| posted on 14/11/09 at 08:22 PM |
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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.
Go for it but let us know when disaster strikes, return would be better if it just drained into the sump.
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MakeEverything
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| posted on 14/11/09 at 10:42 PM |
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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.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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Dingz
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| posted on 14/11/09 at 10:56 PM |
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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
Phoned the local ramblers club today, but the bloke who answered just
went on and on.
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dinosaurjuice
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| posted on 14/11/09 at 11:02 PM |
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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...
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MakeEverything
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| posted on 14/11/09 at 11:42 PM |
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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...
Because it will need drilling and welding, its a job for the future, once i know what i am doing will work fully.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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MikeRJ
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| posted on 15/11/09 at 12:35 AM |
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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.
You are missing the point that the oil outlet on the turbo must have the absolute minimum of pressure to work against. Any pressure here will not
only prevent an adequate flow of oil though the bearings, but will force oil through the seals in large quantities. The oil exiting the turbo is also
very hot, which is why it's drained back straight into the cooler oil in the sump.
There is a good reason why every turbo setup I have seen either drains downhill straight back into the sump or uses a low pressure scavenge pump.
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MakeEverything
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| posted on 15/11/09 at 08:57 AM |
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ok, the penny is dropping now....
Thanks guys, ill use my spare sump to attach a fitting, and swap them over.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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