Trans /oil question

Post Reply
jbgoodner2
Posts: 92
Joined: Sun Feb 07, 2010 1:35 am
Bikes: Nellie Belle,1962 Duo-Glide Police Special.1966 Shovelhead, 1998 Road King
Location: ft laud fl

Trans /oil question

#1

Post by jbgoodner2 » Sat Jun 02, 2012 1:16 pm

Mornin' ! Well, I finally got the rebuilt tranny in, but it seems like it has an unusual amount of gear whine, especially in third. Is this normal for a freshly rebuilt trans? Also, I am using 85/90 gear oil. Should I use 70 wt. instead? Last question, my speedometer now reads 25 when I'm doing 50, so do I now need a 2:1 speedo ? Thanks, Ride Safe, and God Bless !!!!



JR JOHNSON
Posts: 325
Joined: Thu Jan 07, 2010 5:13 pm
Bikes: 1941wla,1946el,1947fl,1950fl,1959flh,1972flh,4 twinkies,1 evo
Location: oregon

Re: Trans /oil question

#2

Post by JR JOHNSON » Sat Jun 02, 2012 1:53 pm

hi,is your gears new,or new gear to used gear?i always used 50 engine oil in the transmission,you don't need gear oil,as per shop manual,is it the same spedo that's been on the bike,i be leave that the shovel speedos have a diff ratio,mite try the search on that,if your running 50 in the engine,run that in the trans,flush it with the 50 wt in the trans a couple of times,an also see if it's making steel on the magnet...............with respect......JR

58flh
Posts: 3338
Joined: Sat Jun 26, 2010 1:54 pm
Bikes: 1958flh 1969sporty,had a knuckle but sold back to original owner
Location: NEW JERSEY

Re: Trans /oil question

#3

Post by 58flh » Sat Jun 02, 2012 2:33 pm

I run the same as motor st.60wt. -DO as JR said check with magnet for dteel,Also I run a mag drainplug just for insurane! WHEN I first rebuilt it I used 80/90 gearoil for 1st 1000 miles After breakin I dump every 3rd engine-oil change.,IT has been noise free shifts smooth & I can run all the gears sitting still & back to neautral! no problem. But that has to do with preventive maintenance/& we all know that!--YOU WANT a 1-KICK trouble-Free/ YOU put your TIME in!---my 2----RICHIE 8)

1950Panhead
Posts: 1578
Joined: Wed Jul 07, 2010 4:28 am
Bikes: 1950Panhead
Location: USA

Re: Trans /oil question

#4

Post by 1950Panhead » Sat Jun 02, 2012 2:48 pm

Engine and trans use 60 wt, however oil change will not change whine.
Are 3rd gears new or used?
48-61 speedo drive=7t, driven = 11t 2000 rev/mile
62-65 speedo drive=4t, driven = 13t 1000 rev/mile
Speedo and drive gears need to be matched, if you have a 62 you need a 62-65 speedo.
Jerry

58flh
Posts: 3338
Joined: Sat Jun 26, 2010 1:54 pm
Bikes: 1958flh 1969sporty,had a knuckle but sold back to original owner
Location: NEW JERSEY

Re: Trans /oil question

#5

Post by 58flh » Sat Jun 02, 2012 2:58 pm

Apologies I didnt read it threw!/ gear whine fresh rebuilt tranny!---Something aint right!/ IF a shop did it ask to see your old gears,BUT they can getover on that one!. Sorry to hear that I know you dished out $$$ & it should be done right! I would pull the lid off & check a looksee on everything! IT should not whine!,Hell I have seen trannys with Alot of MILES & no whine!----EVEN if you put mollases in there it doesent mean the problems fixed!--Pull it & check-JUST my 2----GOOD-LUCK--Richie :!:

Bosheff
Posts: 1223
Joined: Fri Jul 03, 2009 8:23 pm
Bikes: 65 FLH 82 FLH
Location: Michigan

Re: Trans /oil question

#6

Post by Bosheff » Sat Jun 02, 2012 3:38 pm

H-D Big Twin mixers all whine to a certain degree in third. This is normal. Whining in every gear is not. Many things can cause a full time whine. Sometimes a countershaft being to tight will cause a whine (not enought end play). It may be in the kicker cover. Look for brass/steel in the oil....bosheff

jbgoodner2
Posts: 92
Joined: Sun Feb 07, 2010 1:35 am
Bikes: Nellie Belle,1962 Duo-Glide Police Special.1966 Shovelhead, 1998 Road King
Location: ft laud fl

Re: Trans /oil question

#7

Post by jbgoodner2 » Sat Jun 02, 2012 3:53 pm

Yes, a shop did it. I bought a complete gearbox, (STD case) and installed my jockey lid and kicker cover. I have only put about 15 or 20 miles on it. I just started draining the trans and the gear oil is coming out VERY slowly. I'm thinking that it might have been too thick to be able to lubricate new, tight bushings. (Please,Lord, let that be the case !!!! ) I will allow it to drain completely, replace it with 70 wt, (So. Fl., that's ALL we run !!), run that for 20 miles or so, and replace with fresh. I'll post if that makes a difference ! Thanks, Ride Safe, and God Bless !!!!!!!!!

jbgoodner2
Posts: 92
Joined: Sun Feb 07, 2010 1:35 am
Bikes: Nellie Belle,1962 Duo-Glide Police Special.1966 Shovelhead, 1998 Road King
Location: ft laud fl

Re: Trans /oil question

#8

Post by jbgoodner2 » Sat Jun 02, 2012 4:09 pm

Well, THAT'S totally bizarre !!!! The gear oil is coming out partially congealed !!! I don't know what kind of assembly lube he used, but it is NOT compatible with gear oil !!!!! I will put the 70 wt in , ride her for 10 miles or so to heat it up, and change it again.God Bless !!!!!

jbgoodner2
Posts: 92
Joined: Sun Feb 07, 2010 1:35 am
Bikes: Nellie Belle,1962 Duo-Glide Police Special.1966 Shovelhead, 1998 Road King
Location: ft laud fl

Re: Trans /oil question

#9

Post by jbgoodner2 » Sat Jun 02, 2012 7:26 pm

First flush came out yellowish and foamy, much quieter now, 3rd still whines, but nothing like before. Did a little fine-tuning on the clutch, disengages smoother now. Good Lord Willing, maybe she'll work even better yet as the new parts wear in !!!! Thanks, Ride Safe, and God Bless !!!!!!!!

Post Reply

Return to “Transmission, Starter & Shifting”