who's been having to add transmission fluid?
#1831
10-05-2017, 07:10 AM
This is one of the many things that my dealer is doing to my bike while it's in there for the big "Checklist" procedure since the new tranny didn't fix the problem. It just seems like a long shot for the crankcase to be pulling enough vacuum in the primary case through a bad crankshaft seal to suck that much oil out of the tranny to cause the amount of transfer that we're experiencing. I mean, I guess it could, but, why not do what someone else here, (sorry, don't remember who), already suggested and drill/tap a 5/16" NPT hole in the top of a sacrificial primary cover, put a brass filter/breather in it, and let that puppy breath? The path of vacuum is broken at that point without having to dive too deep into the bike. I'm hoping that the dealer gets my bike delivered back to me sometime this week so I can start on a different chapter of this saga.........
I still need to check into California's Lemon Law too.
I still need to check into California's Lemon Law too.
Last edited by MotoJockey; 10-05-2017 at 07:23 AM.
#1832
10-05-2017, 07:44 AM
Stellar HDF Member
I don't have a M-8 so I'm just guessing but if you removed the top derby cover screw wouldn't that create a vent for the primary. AFAIK the screw holes pass thru the primary cover.
You could use a screw similar to the vent screw that was used to vent the old 4 speed FX transmissions.
34720-56 VENT SCREW, transmission housing 71 to 79 - All Models
You could use a screw similar to the vent screw that was used to vent the old 4 speed FX transmissions.
34720-56 VENT SCREW, transmission housing 71 to 79 - All Models
The following users liked this post:
psyshack (10-05-2017)
#1833
10-05-2017, 08:27 AM
Supporter
My Questions up to now.
What will happen, if the transmission vent hose from the top of the transmission cover is directly connected to the top of the inner primary housing? The pressure/vacuum should be identical in both cases. Right?
If yes, the sucking of oil over the mainshaft may stop?
What will happen, if the transmission vent hose from the top of the transmission cover is directly connected to the top of the inner primary housing? The pressure/vacuum should be identical in both cases. Right?
If yes, the sucking of oil over the mainshaft may stop?
#1835
10-05-2017, 09:37 AM
Seasoned HDF Member
#1837
10-05-2017, 09:52 AM
Supporter
A light vacuum is one thing... a vacuum that is causing migration may not be "light". But thanks for the useful commentary!
#1838
10-05-2017, 09:56 AM
Seasoned HDF Member
#1839
10-05-2017, 10:22 AM
UPDATE: 375 Miles after dealer service (spacer, gasket, seal, etc). Was told to put on 500 miles and return for check. Well at 375 I show no oil on the stick, yep there is oil in the trans case, just none on the stick. Will call the dealer and give an update when available. Oh and I have just under 4k miles total.
Eagle Out
We all knew the fix was not a fix.............
Eagle Out
We all knew the fix was not a fix.............