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Brayn

Speedometer problem in 84 Brat

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I have an 84 Brat that I picked up from a guy locally a couple months back that is in good to very good condition. One problem I am having though is with the speedometer. Sometimes it works fine, but most of the time the needle just goes all the way around and buries itself on the bottom when I start moving. Anyone had this problem or know what might be causing it?

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Very common problem. Oil from the transmission has migrated up the speedometer cable and into the speedo head and is dragging the needle around. Only fix I know of is to replace the seal at the transmission to prevent this in the future and replace the speedometer unit and cable. Do a search on this; it's been written up before.

 

Edit: Cleaning the speedo head might be possible; I never tried it. Also, cleaning the speedo cable and re-greasing it might also be possible.

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I had that problem, and cleaning the cable really didn't work. Even the new cable I put in didn't work. I suspect in my case the actual speedo unit got damaged from the cable spinning too much for too long and, unexpectedly, the needle shot off with a loud pop after more than a year of no movement. I had to replace the whole gauge cluster and now no problems. If you can't fix it with the easy methods, you may want to yank out the cluster and look to see if the speedo is damaged.

Edited by eVIL_NTT
typo

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I had that problem, and cleaning the cable really didn't work. Even the new cable I put in didn't work. I suspect in my case the actual speedo unit got damaged from the cable spinning too much for too long and, unexpectedly, the needle shot off with a loud pop after more than a year of no movement. I had to replace the whole gauge cluster and now no problems. If you can't fix it with the easy methods, you may want to yank out the cluster and look to see if the speedo is damaged.
The point of cleaning the cable and replacing the seal on the transmission is to keep the replacement speedometer from having the same problem again. In any event, replacing the speedo will be a necessity unless you're very lucky in cleaning out all the grease that got into the head.

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I have had this problem with my 86 XT DL.  I have pulled the speedo head and am working on a replacement, but I was wondering if anyone could tell me the Subaru part number for the oil seal.  My local dealer has only been a Subaru dealer for 3 years and didn't even know what an XT was, and the seal that he order isn't even close to fitting.  Any help would be appreciated.

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Give Jason in Parts (Dealer in Auburn, WA) a call.  He's quite familiar with the earlier models.  Does online sales with a pretty good discount off list.  I know he's not local to you but that shouldn't matter.  The other rub is he would need to special order seal to get it to you.  Toll free number:  8 six six 5 two eight five 2 eight two. Have your VIN # ready if you call.  

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