home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 07-04-2015, 05:20 PM   #1
towerymt
the real Towery
 
towerymt's Avatar
 
Join Date: Sep 2002
Location: VA, USA
Default Odometer gear replacement (with pictures)

This is a pretty easy job but I've been putting it off for a long time. My car is a '92 240 with a service light reset and tachometer. This car uses torx screws, but earlier ones used phillips head instead.

Step 1, remove the cluster. Two knobs left of the cluster pull straight off. Pop the switch plate out with a pocket screw driver. Pop off the blanks or gauge bezels to the right of the cluster. Remove 4 phillips head or torx screws that secure the cluster to the dash.

Pull the cluster forward til it's against the steering wheel. You may need to remove the steering column panel on top, two screws (phillips or torx). On my '92, there's a round plug, a half-round, a red/yellow connected at the lower corner on the passengers side, a red/white tach signal wire plugged to #1 on the tach, a small plastic connector on the speedometer circuit board, and a pink/grey wire with male disconnect plugged in just beneath the tach (or large clock).

Step2, remove the speedometer from the cluster. Remove the seven screws from around the edge of the cluster and remove the four smaller screws on the back of the speedometer.





Step 3, crack open the walnut. Remove the two small screws and carefully lift the circuit board up, being mindful of the small wires that connect it to the speedo.





If a broken gear is the reason your odometer doesn't work, it'll be obvious. Remove and replace the smalll gear. Make sure it spins freely. A dab of sewing machine oil wouldn't hurt. In mine, the broken gear was stuck to the shaft, but it hadn't spun since last October. Once freed, it spun easily, so I assume it's just from sitting in the same position for so long.



Put the grey plastic disc back inside the odometer and carefully seat the circuit board back in place, making sure the black gear on the shaft meshes with your new gear.

Replace the two screws and slide the speedometer back into place on the board. Be sure that these small connectors on the odometer circuit board line up with the cluster circuit board.



If you don't have a service light, then I don't think you'll have these. Definitely were not there on my '87. Drop the board back into the cluster, making sure the trip odometer reset lines up, and replace all 11 screws.

While it was apart, I cleaned the face of the cluster and the black bezel that was filthy. All clean and back together.



I've reinstalled my cluster and test driven the car...odometer works again.
__________________
1987 244 | Project Thread | The 87 | Now with 74 mods and counting
1992 244 | The 92
Quote:
Originally Posted by Poik View Post
244s are drop dead ugly and suck.
towerymt is offline   Reply With Quote
Old 07-04-2015, 06:54 PM   #2
bwiley240sedan
Professor Dickweed
 
bwiley240sedan's Avatar
 
Join Date: Jul 2010
Location: Boise, Idaho
Default

Nice one! Much better photos than the black-and-white copy that usually comes with those gears.
bwiley240sedan is offline   Reply With Quote
Old 07-04-2015, 08:40 PM   #3
towerymt
the real Towery
 
towerymt's Avatar
 
Join Date: Sep 2002
Location: VA, USA
Default

Bought a couple gears from a member here: http://forums.turbobricks.com/showthread.php?t=303803
towerymt is offline   Reply With Quote
Old 07-05-2015, 07:54 AM   #4
cleanflametrap
Board Member
 
cleanflametrap's Avatar
 
Join Date: Sep 2009
Location: near baltimore
Default

Be sure you retrieve the broken teeth. Might be obvious to you, but plenty have been bitten.
__________________
-Art
cleanflametrap is offline   Reply With Quote
Old 01-05-2016, 11:59 PM   #5
towerymt
the real Towery
 
towerymt's Avatar
 
Join Date: Sep 2002
Location: VA, USA
Default

Six months later, it still works. I reset the trip odometer (while stopped) at every gas fill up, too.
towerymt is offline   Reply With Quote
Old 01-06-2016, 05:15 PM   #6
cleanflametrap
Board Member
 
cleanflametrap's Avatar
 
Join Date: Sep 2009
Location: near baltimore
Default

Hey, that's great. You did good work.

As for the trip reset, I use them unabashedly on all those cars with new gears in them. Even when rolling. The new gears aren't made of mush, no matter whose you buy.
cleanflametrap is offline   Reply With Quote
Old 01-06-2016, 06:08 PM   #7
volvo?
That One Guy
 
Join Date: Nov 2009
Location: Oregon City, OR
Default

I bought one from ipd and my odometer still does not work. It works if I put my old gear back in until it makes it to the missing tooth. Any ideas?
__________________
Quote:
Originally Posted by mikep View Post
Well that got out of hand fast.
volvo? is offline   Reply With Quote
Old 01-07-2016, 08:03 AM   #8
PardoR
Board Member
 
PardoR's Avatar
 
Join Date: Oct 2015
Location: Quilpue, Chile
Default

Quote:
Originally Posted by volvo? View Post
I bought one from ipd and my odometer still does not work. It works if I put my old gear back in until it makes it to the missing tooth. Any ideas?
The same case on my odometer... I bought the single gear from ipd, replaced the older gear (it was in good shape, not broken teeth) and still not works! Maybe a lack of lube?
PardoR is offline   Reply With Quote
Old 01-07-2016, 10:04 AM   #9
BradC
Board Member
 
Join Date: Jan 2011
Location: Perth, Western Australia
Default

If you are going to lube them, use some silicone grease. It's the petroleum based lubricant on there from the factory that has damaged the plastic over the long term.
BradC is offline   Reply With Quote
Old 01-07-2016, 03:10 PM   #10
blkaplan
50 shades of beige
 
blkaplan's Avatar
 
Join Date: Jul 2002
Location: Rockville, MD
Default

I had to blow my odometer out with compressed air as i believe the old teeth were logged in the works somewhere...
__________________
www.BEIGEPOWER.com
Kaplhenke Racing Facebook
Quote:
Originally Posted by DarkKratoz View Post
The only safe bet is Ben.©
blkaplan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 03:24 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.