Garrett GT28 Banjo Bolt Oil Restrictor Size

Guys

Anyone see any problems tested the oil feel line bolt withput actually bolting up the manifold?

I have everything still connected but the turbo and manifold cable tied to where the a/c radiator should go..

it wont hurt anything, but i wouldent run it for too long, it will sound terrible and probably wont run smoothly but should be fine just to test the oil flow for a minute or so.

Quote:

---

Originally Posted by Lukezen27

Guys

Anyone see any problems tested the oil feel line bolt withput actually bolting up the manifold?

I have everything still connected but the turbo and manifold cable tied to where the a/c radiator should go..

---

Yeh should be fine to run. Its very loud and rough though.

To save any confusion, for best results when using a Garrett GT turbo,
Use a 0.6mm restrictor in the oil feed line.
Be mindful the following should also apply,
The oil drain must be of adequate size & free flowing without kinks or dips.
Try to drain back to sump above the oil level.
The B16A~B16B~B18C lend themselves well to this with an available boss on the block that can be drilled & tapped to accommodate an AN fitting.
(To the left of the dip stick – lower portion of block)
Also, don't mount the turbo more than 15deg off horizontal - shaft orientation.

If the GT is leaking from the rear, fit the restrictor & it should fix itself…
The rear seal is carbon.
If it’s from the front, Bad luck

Hope that helps

Quote:

---

Originally Posted by TODA AU

To save any confusion, for best results when using a Garrett GT turbo,
Use a 0.6mm restrictor in the oil feed line.
Be mindful the following should also apply,
The oil drain must be of adequate size & free flowing without kinks or dips.
Try to drain back to sump above the oil level.
The B16A~B16B~B18C lend themselves well to this with an available boss on the block that can be drilled & tapped to accommodate an AN fitting.
(To the left of the dip stick – lower portion of block)
Also, don't mount the turbo more than 15deg off horizontal - shaft orientation.

If the GT is leaking from the rear, fit the restrictor & it should fix itself…
The rear seal is carbon.
If it’s from the front, Bad luck

Hope that helps

---

nice info adrian............
mine was leaking from rear, but as it was under warranty i made roto master in victoria rebuild it and change all the seals for free................ i have gone with the recommended 40thou (1mm) restrictor............so far so good (just got it going today)

Quote:

---

Originally Posted by TODA AU

To save any confusion, for best results when using a Garrett GT turbo,
Use a 0.6mm restrictor in the oil feed line.
Be mindful the following should also apply,
The oil drain must be of adequate size & free flowing without kinks or dips.
Try to drain back to sump above the oil level.
The B16A~B16B~B18C lend themselves well to this with an available boss on the block that can be drilled & tapped to accommodate an AN fitting.
(To the left of the dip stick – lower portion of block)
Also, don't mount the turbo more than 15deg off horizontal - shaft orientation.

If the GT is leaking from the rear, fit the restrictor & it should fix itself…
The rear seal is carbon.
If it’s from the front, Bad luck

Hope that helps

---

Thanks Adrian :thumbsup:

The smallest I could find was 1mm and I've installed that, no more smoking out the tail pipie :)

Where can we get the 0.6m restrictor?

Mine was leaking both front and back :(

pretty sure i have one here i'll have a look . most of the garrett turbos have them in already my T28 did so i didnt have to change it at all!

i ran this with my gt28r and no issues at all

Quote:

---

Originally Posted by IEVAQ8

nice info adrian............
mine was leaking from rear, but as it was under warranty i made roto master in victoria rebuild it and change all the seals for free................ i have gone with the recommended 40thou (1mm) restrictor............so far so good (just got it going today)

---

Quote:

---

Originally Posted by Limbo

i ran this with my gt28r and no issues at all

---

Possibly the turbo has problems :o

Quote:

---

Originally Posted by Lukezen27

Possibly the turbo has problems :o

---

i hope not, should be just a wear in problem.
make urself that .6mm one!

Quote:

---

Originally Posted by Limbo

i hope not, should be just a wear in problem.
make urself that .6mm one!

---

Yeah maybe

I'm going to check the piping shortly...

I've e-mailed Performance Wholesalers

HKS Oil Restrictor 0.6mm PN:4499-RA061

Hey Luke, the chap we saw said he had a smaller one (smaller than 1mm) so if you still need it you could go down. I'm pretty sure he said it was .6mm.