Gearbox fill plug

[KKson]

Gents, about to do the "Adam Quantrill" gearbox flush and Mobil 1 refill on the 390SE but the filler plug does not exist on the side where it usually sits. There is however a plug towards the back on the box, on the opposite side as per photo below. Can someone please confirm that this is a suitable alternative fill point? Thanks.

[gmw9666]

Same as my seac, early lt77 box

It's what I used :-)

[KKson]

Thanks Glen.

Edited by KKson on Tuesday 14th February 21:02

[wedged up]

Cobra kit sitting there Keith ??

[KKson]

wedged up said:

Cobra kit sitting there Keith ??

No was just an image off Google that showed the plug location. My gearbox is still in place under the car.

[adam quantrill]

Good stuff - we've seen a few like this now.

It's not "my" method though I've used it, the plaudits go to HonestJohnToo.

[ElvisWedgeman]

Then you'll be needing one of these. Make sure you get the nozzle in the correct hole or it could be a disaster. I use Silverhook MTF-94 fully synthetic gear oil. It does exactly what it says on the tin. I don't rely on home mix remedies. Good luck.

Tony. TCB.

[KKson]

Thanks Tony. Last time I flushed the 350i box I ran a length of clear hose from engine bay down to the filler hole and put a funnel in the top of the hose.

[stevoj]

KKson said:

Thanks Tony. Last time I flushed the 350i box I ran a length of clear hose from engine bay down to the filler hole and put a funnel in the top of the hose.

+1 This way works.

[gmw9666]

Slight variation, mine holds 2L, a mini fluid pump, super easy and no mess

[adam quantrill]

I use a flexible tube above the car, but at the top a slightly different method.

I have a standard gallon container cap, drilled, with a pipe fixed into it. The flexible pipe pushes onto this, and the container cap goes onto the oil container.

Then I use a large G clamp (or woodworking cramp) to squeeze the container. Not too hard though or the lid will pop off! This shifts the oil a lot quicker - at the beginning I can leave it unattended and have a cup of tea or summat.

Also it helps if you warm the oil up on a radiator for a few hours, although for the Mobil, it doesn't make much difference, as the viscosity is pretty constant.

[KKson]

Yep, oil will be kept in the very warm airing cupboard overnight in advance. Just bought a gallon of Mobil 1, gallon of Morris Classic 20/50, cheap bottle of ATF for flushing, tube of gearbox Moly and a can of Wynns engine stop leak, oh and one of Pauls recommended Wynns gasket maker tubes - £96 bloomin' quid. Ouch.