Trans trouble
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Tourer
Joined: Oct 2007
Posts: 269
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Trans trouble
I have a 78 and runs great but all of the sudden I am getting a whine from trans( it sounds like an old heavy duty 4 speed muncie or something like that). When I have the clutch in no noise when I go up thru the gears the whine gets louder but once I get in 4th it seems to quite down. I dont think I was running the corrrect weight oil in the thing either could that have caused some damage in the trans? The noise just started all of the sudden while I was out riding. Now granted I ride the thing like I stole it, but I hope I didnt screw anything major in the trans. Please give any thoughts you might have on the subject. I built this bike myself and it is my first HD, I do have the manual but need some advice from someone that knows alot more about these old bikes than me.
Thanks in advance for the help.
T-Ron
Thanks in advance for the help.
T-Ron
Tourer
Joined: Apr 2006
Posts: 351
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From:
Does it make the noise when it is idling in neutral? Drain the trans and see if there is any metal particles in the oil. From the sounds of it, you have worn gears and spacers from using the wrong oil. The bearings could be bad causing the gears to mesh at the wrong angle & causing the whine. The correct type of trans lube should be in your shop manual.
Cruiser
Joined: Aug 2008
Posts: 183
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From: indiana
a good 50wt. like castol or other should be ok check ur levelalso u didnt say how long u rode like this could be shifter forks are not engaing gears fully or gears areworn or not shimed correctly let me know
live hard die free
live hard die free
Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
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From: Houston Texas
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Tourer
Joined: Oct 2007
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I know I was lucky it could have really cost me some coin. I am checking before every ride even if its just around the block.
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Road Warrior
Joined: Sep 2006
Posts: 1,605
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From: nj
Why not buy hd oil for the primary? I know that it might be alittle more but you don't have to use the wrong weight Thanks.
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Road Master
Joined: Aug 2006
Posts: 751
Likes: 6
From: 500 miles south from Artic Circle
All 77 and newer should use Sportster Transmission Fluid in primary/transmission... if transfer valve in primary is blocked it's good for older too. Clutch operates better with correct fluid/oil price isn't issue.
Last edited by sepixlh; Sep 1, 2008 at 05:11 AM. Reason: typo
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