peice of magnet in my auto transmission

[HAVABEER]

so i took off my auto transmission sump/pan today to replace the cork seal as it was leaking. and when i got all the transmission fluid out i noticed there was a small 10mm x 10mm piece of magnet in the bottom.

is this ment to be in there? i thought maybe its ment to be in there to collect bit of shit (which it has done had a fair amount of crap on it)

my other point is i've put the transmission sump back on but i've forgotten to put the bit of magnet back in. do i need to be worried?

[CLG]

Yep, it collects metal filings from the fluid - clean it off an reinstall.

[Shifty]

Definitely needed. Over time it collects tiny metal shavings/filings, it stops them cycling through the gearbox and wearing it out over time.

[Smokey228]

Yup, as said, clean it and put it back in there

Cheers,
Jase

EDIT: Your engine sump also has one, usually installed into the end of the bolt, same as most diffs, on the end of the bolt***

[PlacentaJuan]

if the sump is glued and bolted back on can you just buy a really strong magnet and glue it to the outside?

rather than removing the sump again......

[HAVABEER]

yeah i might rip apart an old hard disk drive i have lying around and put that on there

its probably the first time its been cleaned in 450,000k's

[Smokey228]

You dont have to clean the magnet, you just have to remove the shavings off it. So if the magnet is outside the sump, the shavings are still going to end up inside the sump... Just stuck to the sump instead of a magnet...

Cheers,
Jase

[parrot]

Surely it is small enough to just stick back into the oil drain hole, just do it quick!

[Smokey228]

I think the sump bolt on most autos is a 14, so a thread of around 8-10mm, i think the magnets are slightly bigger then that...

You could leave it out for now, and as soon as you can, get a bolt with the magnet sunk into the end of it and plug it with that?

Cheers,
Jase

[parrot]

Either that or get a longer, thinner magnet.

[HAVABEER]

yeah its a 19mm sized bolt so i might try and QUICKLY shove it back in through there. will either buy a longer thiner magnet or grind the current one down

or will a magnet on the out side do the trick?

[Cuzzo]

Is the magnetic connected to the bolt?

If not get one and remove and replace quickly

[AE35]

Why not just get a magnetic sump plug?

Auto transmissions are meant to be regularly serviced anyway... Just get a Filter Service Kit, service it and put the magnet back in there.

[Smokey228]

He just did service it, i had dropping oil, especially right after its been dropped...

Occasion in question, i serviced my rolla, put the filter on, filled with oil, filter was cross threaded and didnt go on properly, oil pissed out everywhere, was pissed off, engine got the old filter and old oil back in. I gave up on that car long ago

Cheers,
Jase

[AE35]

He just did service it, i had dropping oil, especially right after its been dropped...

Occasion in question, i serviced my rolla, put the filter on, filled with oil, filter was cross threaded and didnt go on properly, oil pissed out everywhere, was pissed off, engine got the old filter and old oil back in. I gave up on that car long ago

Cheers,
Jase

My point was that it should be ok for another 5000-10,000k's before putting the magnet back in there

All depends how often you service it though.