Manual Transmission to Redline

[Grants]

I'm about to dran my transmission and put in Redline MT90. Can someone confirm the drain and fill points from the following pics? Pretty dumb I know but it looks like it would hold a lot more than 3 quarts
First the drain:
<img src="http://www.optimalimpact.net/eunos/temp/drain.JPG" alt=" - " />
and the fill point on the side:
<img src="http://www.optimalimpact.net/eunos/temp/fill.JPG" alt=" - " />
<img src="http://www.optimalimpact.net/eunos/temp/fill2.JPG" alt=" - " />

They're both 9/16" plugs. Is there somethin I don't know how to get the oil in the filler plug? Seems like its on the wrong angle and will be hard to fill???

Thanks in advance.

<small>[ November 25, 2004, 09:11 PM: Message edited by: Grants ]</small>

[MrMX3]

those are what i use. If there's something better do let me know.

It's a ***** to fill at that angle, I kinda made my own little "tool" I took a new piece of fuel line, and it so it comes down then off on a bend so it goes into the fill hole. At the other end I've attached a funnel. so I fill from above the engine bay area and it just drains down and into the fill hole. So anytime I need to do my tranny fluid, I just pull this "tool" out and its a 5 minute job.

[lakersfan1]

Like said, that's them, and you almost need to search for a good size hose that's not too constrictive, yet small enough to fit in the hole, and still have room around it to breathe - to let air escape as you fill it.

[Grants]

No worries guys, thanks and I'm onto it. Redline is $30 a quart here and hard to get but I reckon it'll be worth it. Haven't had the car long so I don't know when the fluid was changed last.

[mitmaks]

arent you supposed to flush it when changing to diff oil?

[Grants]

All done. Now to see if it makes a difference.

The only strange thing was it took more oil than 2.7 litres - it took the whole 3 quarts (yea yea not much more) and still wasn't spilling out??? I measured it against what came out and it was exactly the same. I couldn't tell how full it was maybe I should check it tomorrow.

Has anyone heard of a different spec than 2.7 litres? I hate to think its not full and never has been??? (Now I'm worrying )

<small>[ August 31, 2004, 03:28 AM: Message edited by: Grants ]</small>

[DJsMX-3]

If you jacked your car up high only in the front then you could probertly fill in more than the 2.7L needed..

If the car was leveled when you filled in the new oil is should start to run out the fillerhole if you tryed to fill in more than 2.7L

[lakersfan1]

Originally posted by mitmaks:
arent you supposed to flush it when changing to diff oil?

Flush? Not necessary since there's no fluid hiding anywhere like in an automatic. It'll all drain out the bottom.

And does 'diff' mean different or differential?

[Macen]

I did also change to MT90 in my gearbox. I used the same filler hole. Gearshifting is much better now. Also installed the SRD Shifter Extension Rod Bushing.

[Gro Harlem]

you are only supposed to flush auto trans's. I've never heard of anyone flushing a manual, i'm not even sure if the solvents they use are safe for your synchro's, etc.

And you are supposed to use the speedometer gear hole on the top of the tranny to fill it. That plug on the side won't fill it 100% to where you are supposed to, but it'll be OK for now. Just make sure you keep that mofo full or you could risk running it dry.

[IanL]

Originally posted by Gro Harlem:
...And you are supposed to use the speedometer gear hole on the top of the tranny to fill it. That plug on the side won't fill it 100% to where you are supposed to, but it'll be OK for now. Just make sure you keep that mofo full or you could risk running it dry.

Not so. The Mazda Workshop manual specifically instructs that the G25M-R is filled through the oil level plug, until the level comes to the bottom of the aperture. I have done this, and it took the specified 2.7 litres.

The F25M-R fitted to the four cylinder B-series engine is filled through the speedo gear aperture.

[DJester187]

grants, just wondering the last 2 pics you posted what angle were those taken from? under the tranny facing upward towards the hood, or the back of the tranny facing towards the front of the car? thanks.

[Grants]

I had the car on stands at the front, jack at the back when I did the fill so it was pretty level. I think I'll check the level for my own piece of mind though. The fact the same amount of oil went in that came out though is reassuring, probably only a bee's **** in it.

Those last 2 pics were taken from under the car facing towards the back so thats the front of the tranny (right hand drive).

[Macen]

Originally posted by DJester187:
grants, just wondering the last 2 pics you posted what angle were those taken from? under the tranny facing upward towards the hood, or the back of the tranny facing towards the front of the car? thanks.

The angle of the last two pics are from the front of the car, looking back against the firewall. So the refill plug is located 90 degrees from the drain plug.

[PATDIESEL]

Geezum petes guys!!!!, the way to fill a G series tranny is to remove the speedo gear and the "filler" plug (it is actuall the FULL plug)you pour into the speedo hole and when it is full it will spill out the FULL plug so that you don't overfill it. Make sense?
Make sure that the car is level and put a pan under the FULL plug to catch excess. Easy as pie, no funky rigs to ge the oil into the full plug and a perfect fill every time!