Bigikes ol'lady
New Member
Has anyone figured out how to keep the clutch hub nut tight? Followed the changes that were recommended in 2010 and it still came loose even with the red loctite.
Clutch Hub Nut
- Thread starter Bigikes ol'lady
- Start date
Brew
Troop Supporter
You got to clean the threads on the main shaft and nut really good and dry them. Put a good serving of loc-tite on the threads of the main shaft and on the threads of the nut. Tighten the nut and let it sit over night, then reassemble everything. Key is to let the loc-tite set up...
jimizee028
TRUE COLORS COLLISION
I did exactly what Brew said and impacted it back on ,had to heat it up with a heat gun and use impact to get it back off.....I had the same problem you did a few times before doing above what I mentioned.....Good luck...
T.Byrd
Well-Known Member
Worked forme to its been two years.You got to clean the threads on the main shaft and nut really good and dry them. Put a good serving of loc-tite on the threads of the main shaft and on the threads of the nut. Tighten the nut and let it sit over night, then reassemble everything. Key is to let the loc-tite set up...
KaptinAmerika
Guru
If You Clean The Threads thoroughly, Use loC-tite Primer, High heat Red Loc-tite, torqueTo 200Ftlbs, Back Off And TorqUe Back To 150Ftlbs It Will Not Come Lose
KaptinAmerika
Guru
What I stated is a direct addendum from Big Dog.
A few years ago a local shop put a new motor in my K9. Like so many others they torqued the nut to 80 ftlbs, by the way that is a Harley Spec. Within 7000 miles the nut came loose.
I have had my clutch out a couple of times myself and have always torqued the nut to 200, backed off and torqued back to 150 and it has NEVRR come lloose.
Take it for what it's worth
A few years ago a local shop put a new motor in my K9. Like so many others they torqued the nut to 80 ftlbs, by the way that is a Harley Spec. Within 7000 miles the nut came loose.
I have had my clutch out a couple of times myself and have always torqued the nut to 200, backed off and torqued back to 150 and it has NEVRR come lloose.
Take it for what it's worth
BigDogBro1
Made in the USA
200ft pounds is WAY too much torque to apply to the nut, even to only set the basket. The trans shaft threads will stretch or worse.
Just torque the nut to 100 to 125ft/lbs absolute maximum.
the original torque was 80ft/lbs then increased to 100ft/lbs.
There is also a new NUT & WASHER which are hardened.
Last edited:
KaptinAmerika
Guru
If you say so
But I have 40000 miles on my trans doing it the way I noted above and I've yet to have issue with threads nuts or shafts. The only time I have had issues is when someone else has done the work.
But I have 40000 miles on my trans doing it the way I noted above and I've yet to have issue with threads nuts or shafts. The only time I have had issues is when someone else has done the work.
JeffM
Active Member
3/4" electric impact and red lock-tite with primer. Don't care what torque it is or if i stretchs the shaft thread, just don't want it loose again.
I tighten industrial gearboxs with impact guns every day for tha past 30 years never had an issue or warrenty claim or a stretched bolt or stud ............. unless you go stupid.
I tighten industrial gearboxs with impact guns every day for tha past 30 years never had an issue or warrenty claim or a stretched bolt or stud ............. unless you go stupid.
We are getting ready to do this on my friends bike, just waiting on the transmission rebuild from Andrew. there are a lot of smart and talented people here, but somewhat different opinions on how to get this clutch hub nut to stay tight. Any way for everyone to agree on one method for all of the members here.
all i can say is clean the threads, both male and female, really good, tighten without loctite to 150psi, remove the nut and apply red loctite, re-tighten to 120 psi, and let it sit for 24 hours. then button up the primary and add the lube of your choice (preferably non-synthetic). this is what i read several years ago that was released in a service bulletin from the factory.
BWG56
Guru
I had mine come loose at 80, 100, 120 and the last time was at 150ft/lbs and it still came loose. I can't promise ya that my nuts were clean, but this last time I made sure the thread and nut was cleaned thoroughly with brake cleaner and dried. The key is clean threads and nut (new nut from Baker is hardened) before loctite. I would torque to at least 120ft/lbs.
but this last time I made sure the thread and nut was cleaned thoroughly with brake cleaner and dried. The key is clean threads and nut (new nut from Baker is hardened) before loctite. I would torque to at least 120ft/lbs.bigdogtech01
Well-Known Member
The threads will not stretch with 200 ft lbs... However, it's a lot of pressure to be putting on the shaft itself with the block in chain method. I use an air impact to tighten the front and rear nuts and have been doing this for many years with no problems...and they DO NOT loosen up. I also do as others have already said, clean threads and use A LOT of high strength 262 RED loctite.
If the Loctite is "Primer-less" do not use the thread primer. The Loctite will actually setup before you can get the nut's torqued against the hub/sprocket. If using a torque wrench, you will get a false reading.
I clean threads using brake/parts cleaner and let dry. No need to let sit overnight. By time you get done putting primary cover back on along with clutch adjustment and everything else, the loctite will be cured.
If the Loctite is "Primer-less" do not use the thread primer. The Loctite will actually setup before you can get the nut's torqued against the hub/sprocket. If using a torque wrench, you will get a false reading.
I clean threads using brake/parts cleaner and let dry. No need to let sit overnight. By time you get done putting primary cover back on along with clutch adjustment and everything else, the loctite will be cured.
BigDogBro1
Made in the USA
I was told by Baker on this issue that it would seem that you have a transmission mainshaft/bearing problem if it continues to keep getting loose.I had mine come loose at 80, 100, 120 and the last time was at 150ft/lbs and it still came loose. I can't promise ya that my nuts were clean,
I feel that agressive RPM down-shifting when coming to a stop contributes to the clutch nut loosening problem as well.
BWG56
Guru
I've had the tranny rebuilt by Andrew since I had those problems and all is good now. And yes this time I used an impact wrench on the nuts and the shaft /nut was bleeding with loctite.:2thumbs:
pknowles
RETIRED
If this doesn't work, get yourself a knocker wrench and a 20 pound hammer