How Much Oil Does Rb20 Gearbox Take ? Can't Use Filler Hole..

[cabramatta]

As title states, I'm going to be filling up my rb20 manual box from the selector hole as I can't remove the filler hole on the side of the box as I only got a 17MM spanner which only works with the open end side. I don't have any 4 sided socket that fits over that bolt.

I'm using a BFH with the spanner aswell.. Won't budge.. I have a breaker bar I can use but I don't have any socket that fits over the bolt..

Anyone know how much oil I should put in ? I can't take the filler plug off so I might aswell just drain it and measure how much im putting in from the top.

cheers

Edited March 31, 2012 by cabramatta

[sedy]

The breaker bar should fit snug in the filler plug to open it. For the amount - check on the castrol site or something, they have a product lookup.

[cabramatta]

The filler hole is a nut, it's not a hole where I can fit a breaker into it:

on on the right

[Nic_A31]

Use vice grips or something to get that off.

I replaced that one with the same type of plug as the drain, so I can crack it with a 1/2" drive ratchet.

What I do is take the filler off, fill from the shifter until oil is JUST starting to overflow out of the filler, then chuck the filler plug back on.

From memory it's about 2.2 litres.

[sedy]

My mistake. I used a spanner with another one welded on the end. 2.5 for mine but it's a 33

Edited March 31, 2012 by sedy

[cabramatta]

Use vice grips or something to get that off.

I replaced that one with the same type of plug as the drain, so I can crack it with a 1/2" drive ratchet.

What I do is take the filler off, fill from the shifter until oil is JUST starting to overflow out of the filler, then chuck the filler plug back on.

From memory it's about 2.2 litres.

Where did you buy the same type plug from ?? I want to replace both the plugs on them as they are chewed from the previous owner!

[cabramatta]

[Nic_A31]

I took it from one of my old blown gearboxes.

I had, well, more than 1 laying around at the time.

[cabramatta]

No problem.

I'm in search of the OEM part number for the plugs.