Changing Gearbox Oil

[caspros]

So after my recent expedition to Manfield, I've developed a mildly graunchy 3rd and 5th when changing gears under load.

I find this odd as the gearbox was rebuilt less than 5,000km ago, but, I thought I'd have a go at changing the oil before trying anything else.

Can someone point in the right direction of what bolts where to do this ? I've googled but can't find the exact location of them.

It's a V5 STI RA w/ DCCD.

Thanks !

[madmike]

Just find a FBH.

Keep hitting bottom of box until oil starts coming out...

When oil stops coming out, repair hole with Race Tape and refill with oil..

DONE BURGER....

[caspros]

Oh sweet ! That's exactly what I wanted to know. Can you point me in the direction of where the oil is supposed to be put in after ? Should I just splash it around randomly and hope some goes in ;D

[madmike]

 caspros said:

Oh sweet ! That's exactly what I wanted to know. Can you point me in the direction of where the oil is supposed to be put in after ? Should I just splash it around randomly and hope some goes in ;D

LOL.. I find the random splash method the most fun...

[caspros]

In the absence of any other pointers, I shall give that a go. And take pics.

[madmike]

Sorry, I'm about as much help as a female in the garage!

I did notice that 3rd & 5th sounded crunchy on your and Funky's vid from R&T.

I will send it once the Photographer releases it for general publication.

[funkytown]

il give you a hand chris - im back in a a few days - txt me if you want a hand

I think you will find that if the oil helps the lumps on 3 and 5 that it will only band aid the problem...

[driftrex]

peice of cake, theres a big drain plug at the front of the gearbox, its a 22mm from memory, undo that let drain for quite a while, then refill with oil through the dipstick tube, this can be a cunt cause you have to fill it quite slowly or it just overflows lol.

should take 4 litres. and make sure you use a GL-5 rated gear oil as per manufacturers recommendations. hope that helps ya.

[BC5RA]

Use a squeezy bottle to refill with a tube on it or a funnel and the squeezy bottle.

[driftrex]

at work we just use a long funnel and a 5 litre jug, you soon work out how fast or slow you can pour it

but we are generally in a hurry at work lol.

[Guest]

Redline gear oil can help

It could be on the track your gear oil was getting abit thin with the extra heat thus causing problems

[caspros]

 Qwerty said:

Redline gear oil can help

It could be on the track your gear oil was getting abit thin with the extra heat thus causing problems

Yep, I think Reline 75/90 was what I see most people are using. Thanks for the all the advice everyone, and Jon I may hit you up on that. I'm guessing the 22mm bolt is hard to get to ? Or just an extension on a ratchet will do ?

[driftrex]

 caspros said:

Yep, I think Reline 75/90 was what I see most people are using. Thanks for the all the advice everyone, and Jon I may hit you up on that. I'm guessing the 22mm bolt is hard to get to ? Or just an extension on a ratchet will do ?

the plug is really easy to get to, its right on the bottom of the box, facing the road, you cant miss it, you wont need an extension, i just used a spanner and mallet to get them at work.

[caspros]

That's the plug for the oil to drain out of though right ? What about the one to fill it ?

Or is the fill one on the side aswell ?

[driftrex]

 caspros said:

That's the plug for the oil to drain out of though right ? What about the one to fill it ?

Or is the fill one on the side aswell ?

the way to refill is through the gearbox dipstick tube which is on the drivers side between turbo and under intercooler kind of. that is the only way to fill these gearboxes, which is why you will need to fill slowly as air tries to get back up the tube as you fill lol.

most other manufacturers have a fill plug on the side of the box for easy re-filling but for some reason subaru decided they didnt need one.

[caspros]

Ha ha ha, so there's a dipstick tube ? Jeez, what a novice. Well that makes it all easier. For some reason I thought it would be like changing the diff oil.

[driftrex]

 caspros said:

Ha ha ha, so there's a dipstick tube ? Jeez, what a novice. Well that makes it all easier. For some reason I thought it would be like changing the diff oil.

lol yea theres a dipstick tube. also when you drain it i would give it about 30min at least of draining, the bulk of it will come out straight away but i know from doin mine that if you leave it draining for ages about another half a litre will come out.

[caspros]

Cool, thanks for the tips, looks well within my abilities.

[Bazza-NZ]

 driftrex']

[quote name='caspros said:

Ha ha ha, so there's a dipstick tube ? Jeez, what a novice. Well that makes it all easier. For some reason I thought it would be like changing the diff oil.

/quote]

lol yea theres a dipstick tube. also when you drain it i would give it about 30min at least of draining, the bulk of it will come out straight away but i know from doin mine that if you leave it draining for ages about another half a litre will come out.

I also jack the car up via the diff, that also helps get it out quicker ;D

[driftrex]

 Bazza-NZ']

[quote name='caspros said:

Ha ha ha, so there's a dipstick tube ? Jeez, what a novice. Well that makes it all easier. For some reason I thought it would be like changing the diff oil.

/quote]

lol yea theres a dipstick tube. also when you drain it i would give it about 30min at least of draining, the bulk of it will come out straight away but i know from doin mine that if you leave it draining for ages about another half a litre will come out.

I also jack the car up via the diff, that also helps get it out quicker ;D

ah yes sometimes i forget you poor buggers that use jacks lol. but yea good idea.

[Bazza-NZ]

 driftrex']

[quote name='caspros said:

Ha ha ha, so there's a dipstick tube ? Jeez, what a novice. Well that makes it all easier. For some reason I thought it would be like changing the diff oil.

/quote]

lol yea theres a dipstick tube. also when you drain it i would give it about 30min at least of draining, the bulk of it will come out straight away but i know from doin mine that if you leave it draining for ages about another half a litre will come out.

I also jack the car up via the diff, that also helps get it out quicker ;D

ah yes sometimes i forget you poor buggers that use jacks lol. but yea good idea.

Haha that combined with ramps for me... nothing fancy for us wellington crew at clubsub central

[RS.YES]

Will this be the same for the BC5 Legacy's too? Filling it through the dipstick? That's weird man

[BC5RA]

 RS.YES said:

Will this be the same for the BC5 Legacy's too? Filling it through the dipstick? That's weird man

The same.

[sti_v9]

 caspros']

[quote name='Qwerty said:

Redline gear oil can help

It could be on the track your gear oil was getting abit thin with the extra heat thus causing problems

/quote]

Yep, I think Reline 75/90 was what I see most people are using. Thanks for the all the advice everyone, and Jon I may hit you up on that. I'm guessing the 22mm bolt is hard to get to ? Or just an extension on a ratchet will do ?

I tried Redline MT90 as a cure for a 2nd gear crunch on my Skyline and it didn't help. Be careful what type of oil you choose as Redline have a few different types available.

[DRFVDR]

 sti_v9']

[quote name='Qwerty said:

Redline gear oil can help

It could be on the track your gear oil was getting abit thin with the extra heat thus causing problems

/quote]

Yep, I think Reline 75/90 was what I see most people are using. Thanks for the all the advice everyone, and Jon I may hit you up on that. I'm guessing the 22mm bolt is hard to get to ? Or just an extension on a ratchet will do ?

I tried Redline MT90 as a cure for a 2nd gear crunch on my Skyline and it didn't help. Be careful what type of oil you choose as Redline have a few different types available.

Why would u think that an oil would help worn out syncros ?