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transmisson oil

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1450
Posts: 84
Joined: Fri Nov 21, 2008 8:47 pm
Bikes: 57 flh 2008 ultra
Location: gilbert az

transmisson oil

#1

Post by 1450 » Thu Nov 05, 2009 8:33 pm

hi all , i changed oil in transmission 60 wt first time on my pan ,now its hard to shift ,and harder to down shift? can be the oil?60 wt .hd oil :? any suggestion

1450



FelthamW
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Bikes: 1955 FLH
2005 FLHTC
1990 bastid wild child
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Re: transmisson oil

#2

Post by FelthamW » Thu Nov 05, 2009 10:24 pm

could possibly be a coincidence but..................
check your clutch to make sure it has enough travel to disengage the fiber plates from the steel plates by pulling in the clutch lever and rotating the pressure plate by hand. It should roll freely. I have never had a tranny shift easy or right (or even when you want it to) if the clutch drags.
If it drags now but didn't before the oil change, could it be that the new oil has soaked the plates?
wayne

james
Posts: 835
Joined: Tue Nov 18, 2008 7:33 pm
Bikes: 2003 FLHRCI
1952 FL
Location: Wrightsville Pennsylvania

Re: transmisson oil

#3

Post by james » Fri Nov 06, 2009 3:33 am

Uh oh her we go again with the trans oil..................
now your really gonna hear it.

partshunt
Panhead Register Member
Posts: 305
Joined: Sun Sep 24, 2006 9:04 am
Location: "Big Timber Country" Western Canada

Re: transmisson oil

#4

Post by partshunt » Fri Nov 06, 2009 11:01 am

I think Wayne is on to it, check out your clutch first thing. Oil is not the cause, You can even use 90W EP gear oil in those transmissions without effecting the shift quality....Joe

Bigincher
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Bikes: 1941/59 EL
1952 FL
1977 FLH
1994 Fatboy

Re: transmisson oil

#5

Post by Bigincher » Fri Nov 06, 2009 3:06 pm

1450, I apologize if I am telling you the obvious and mundane, but just so it's been covered...... the tranmission oil must be checked with the bike in the upright position. Fill to just below the bottom of the fill hole. If the mistake was made of filling it while the bike was on the jiffy stand, it will most certainly be overfilled, and one of the paths of escape is out the end of the mainshaft around the clutch pushrod seal. Especially if the seal is the old cork style, and has been in there awhile. The oil will then contaminate the clutch disks and do just what's been described.

1450
Posts: 84
Joined: Fri Nov 21, 2008 8:47 pm
Bikes: 57 flh 2008 ultra
Location: gilbert az

Re: transmisson oil

#6

Post by 1450 » Fri Nov 06, 2009 5:32 pm

Bigincher wrote:1450, I apologize if I am telling you the obvious and mundane, but just so it's been covered...... the tranmission oil must be checked with the bike in the upright position. Fill to just below the bottom of the fill hole. If the mistake was made of filling it while the bike was on the jiffy stand, it will most certainly be overfilled, and one of the paths of escape is out the end of the mainshaft around the clutch pushrod seal. Especially if the seal is the old cork style, and has been in there awhile. The oil will then contaminate the clutch disks and do just what's been described.

51Hog
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Location: Wasilla, Alaska

Re: transmisson oil

#7

Post by 51Hog » Fri Nov 06, 2009 10:09 pm

I fill mine with 90 wt gear oil. bike on rear stand (level). Just so I can see oil in the bottom of the tranny just touching the bottom of the throw out bearing---(old style).
I started filling this way after a 100% rebuild of the tranny 6000 miles ago. No problems. NOS parts in the tranny. Some used old stock parts. Book says to use engine oil.
Dale ----- Ducking the incoming flames-----LOL

Bosheff
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Location: Michigan

Re: transmisson oil

#8

Post by Bosheff » Fri Nov 06, 2009 11:47 pm

Drain the 60, refil with 50. If it still don't wanna work right, you know the problem's not the oil....bosheff

fourthgear
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Location: north florida

Re: transmisson oil

#9

Post by fourthgear » Sat Nov 07, 2009 12:07 am

Check you primary chain adj..

Bigincher
Posts: 2830
Joined: Tue Dec 18, 2007 2:10 pm
Bikes: 1941/59 EL
1952 FL
1977 FLH
1994 Fatboy

Re: transmisson oil

#10

Post by Bigincher » Sat Nov 07, 2009 2:40 am

1450 wrote:
Bigincher wrote:1450, I apologize if I am telling you the obvious and mundane, but just so it's been covered...... the tranmission oil must be checked with the bike in the upright position. Fill to just below the bottom of the fill hole. If the mistake was made of filling it while the bike was on the jiffy stand, it will most certainly be overfilled, and one of the paths of escape is out the end of the mainshaft around the clutch pushrod seal. Especially if the seal is the old cork style, and has been in there awhile. The oil will then contaminate the clutch disks and do just what's been described.
I see the quote, but no reply. Any questions or comments?

ozwick86
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Joined: Sat Jul 17, 2004 4:06 am
Bikes: '59 Pan FLHF
Location: N. California

Re: transmisson oil

#11

Post by ozwick86 » Sat Nov 07, 2009 5:00 pm

The capacity of the transmission is 1-1/2 pts.

Don't overfill

1450
Posts: 84
Joined: Fri Nov 21, 2008 8:47 pm
Bikes: 57 flh 2008 ultra
Location: gilbert az

Re: transmisson oil

#12

Post by 1450 » Sat Nov 07, 2009 7:28 pm

thanks all, for the help,i put 1 1/2 qt in the trans ?? i will try 50 wt and see .

NightShift
Posts: 532
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Bikes: Two Schwinns, a Hercules, and a Hiawatha
Location: Underground in Illinois

Re: transmisson oil

#13

Post by NightShift » Sat Nov 07, 2009 8:33 pm

Dear 1450,
Even if the bike was on its side with the filler plug up you still couldn't get 1 1/2 qts in.
Two-thirds of a quart or just up to the threads on the filler plug hole with the bike sitting level works good.

'Respectful,

ozwick86
Posts: 756
Joined: Sat Jul 17, 2004 4:06 am
Bikes: '59 Pan FLHF
Location: N. California

Re: transmisson oil

#14

Post by ozwick86 » Sat Nov 07, 2009 10:53 pm

It's pints not quarts!

From my previous post; "The capacity of the transmission is 1-1/2 pts.

1.5 PINTS

Cotten
Posts: 6911
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

Re: transmisson oil

#15

Post by Cotten » Sun Nov 08, 2009 3:37 am

Besides re-filling the tranny with the same weight as the motor,
I would just cut to the chase and pull the clutch pack and scrub it.

If you find fresh oil all over the plates, then freshen up the hut nut seal.
Cram two in if there is a wear line on the pushrod.
Reassemble and adjust.

Harley Big Twins had phenomenal clutches.
They are truly unsung.

...Cotten

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