01-31-2021, 02:23 PM | #1 |
Captain
223
Rep 695
Posts |
Transmission drain/fill plug washers?
In preparation for spring maintenance, I've ordered a bunch of misc parts and fluids. When replacing the transmission fluid, I plan to replace the drain/fill plugs.
Interestingly, the transmission used in the 1M (and N55 powered cars) uses different drain/fill plugs than those of the earlier N54 cars. All plugs appear to be M18x1.5, but the early ones have an integrated sealing ring (viton?) like the diff plugs, whereas the later ones do not. What's odd (to me anyway) is that Realoem does not specify use of a copper/aluminum sealing washer for the later versions. Is it really correct to install the plugs without any additional means for sealing? Seems like a bad idea, has anyone tried adding a thin crush washer?Thoughts? |
01-31-2021, 11:41 PM | #2 |
Colonel
2625
Rep 2,819
Posts
Drives: e82 1M, f87 M2cs
Join Date: Nov 2011
Location: Tri-Cities, Washington
|
That's odd. I don't know what is up with realoem, but FCP Euro had the crush washers for the drain and fill plugs for both tranny and diff, which I used. My plugs did not have any incorporated sealing ring. I wouldn't put the plugs in without crush washers...they would leak.
__________________
1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
|
Appreciate
0
|
02-02-2021, 05:22 PM | #3 | |
Captain
223
Rep 695
Posts |
Quote:
For the transmission, I'm with you. Not cool to think deformation of the case will provide a leak-proof seal 😳. |
|
Appreciate
0
|
02-02-2021, 06:57 PM | #4 | ||
Colonel
2625
Rep 2,819
Posts
Drives: e82 1M, f87 M2cs
Join Date: Nov 2011
Location: Tri-Cities, Washington
|
Quote:
__________________
1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
|
||
Appreciate
0
|
02-02-2021, 11:40 PM | #5 |
Lieutenant
340
Rep 468
Posts |
The drain/fill plugs on the transmission don't use a crush washer. I recently changed the fluid in my transmission and it feels like there is interference designed into the threads that creates a seal.
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|