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#1 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Speed Warning - Back from the Dead
I bought a speed warning cluster from member John H a couple of weeks back, then promptly destroyed it because I took the needle assembly too far apart. I know masking isn't perfect, but if you find yourself in this position, mask it, don't blow it apart.
Anyhow, TBONE the gauge specialist member was a huge help. First he had a spare needle assembly. I almost ruined that one too because I wanted to airbrush the needle... so I took it apart, just not as far. Take my advice, having done it twice: don't take it apart. I managed to get it painted and back on, but I have literally days into it. Anyhow, the odometer was all yellowed. Tried to clean it without success, so I decided to transfer my original over. For some reason internally I discovered the thousands digit was locked at 6. And indeed, the truck has 76XXX miles on the odometer. I bet it just stuck at 76K and wrapped around perpetually every 1000 miles. Tried to take that apart and fix it, but could never find the problem. I decided to then pull an odometer out of my Pontiac stash. Had to shorten the shaft a little but otherwise seemed to interchange. The little plastic retainer had shattered but I didn't need to make a new one because this speedo head has the full rail for each odometer digit tab (some have a gap for the thousands and rely on the plastic thing). Sadly, when I pulled the face of the speedo all 6 little gears for setting the speed warning and some shims fell right out, as they're actually retained by the face. TBONE to the rescue again as he was able to send me a photo showing the correct gear layout. Once back together, I found the speed warning aspect didn't actually work. Just oxidation after all these years I guess, as I was able to clean up the spring contact with some laquer thinner and use some emory cloth on the pin of the speed warning needle contact and now its consistent and accurate. So, long story short, I'll soon have it done. I'll post a photo of the whole cluster eventually. In the photo it looks like the base of the yellow needle is unpainted or a different color, but it's just the angle of the photo.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible Last edited by davepl; 09-09-2014 at 09:39 PM. |
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#2 |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Speed Warning - Back from the Dead
Always glad to help Dave. I am happy you got it back together and functioning properly.
By the way, that is the nicest speed warning face I have seen in a while. They are extremely hard to find in that condition. Looking forward to photos of the complete cluster. Great work there, Tom
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Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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#3 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Looks like you gotter done man! Good job. I had mine done by TBONE1964 great job on the cluster.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#4 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Speed Warning - Back from the Dead
Does anyone (TBONE?) know how sensitive these are to the added weight of repainting them? This needle assembly in particular seem to have an counterweight balance. If that counterweight's mass was calculated based off a weight that I've now changed, I wonder how much, if any, it'll affect its accuracy or linearity.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#5 | |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Speed Warning - Back from the Dead
Quote:
Hi Dave, I don't the very little bit of paint you use on the needle will cause an inaccuracy but you do bring up a valid point and it is possible that paint build up on the needle will throw of the calibration of the speedometer. Here is a little tool I use in my shop to confirm speedometer accuracy. Now that you have asked, I need to do an experiment with a known accurate speedometer and pile on some paint and see what happens. It will make it slow if anything. Not sure when I would have time at this point but I will do a test in the future. I use this tool also for each and every gauge cluster I sell to insure accuracy, no noise and no needle bounce. Hope this helps. Tom
__________________
Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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#6 | |
Senior Member
![]() Join Date: Apr 2013
Location: Podunk, Texas
Posts: 748
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Re: Speed Warning - Back from the Dead
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#7 | |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Speed Warning - Back from the Dead
Quote:
I feel lucky to have it as they are getting harder to find. It did not come cheap either ![]()
__________________
Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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#8 | |
Senior Member
![]() Join Date: Apr 2013
Location: Podunk, Texas
Posts: 748
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Re: Speed Warning - Back from the Dead
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#9 |
Registered User
Join Date: Oct 2007
Location: Sammamish, WA
Posts: 2,115
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Re: Speed Warning - Back from the Dead
Dave,
Excellent work! That cluster came from AZ, so I thought it would be in good shape minus the fading. The speed warning needle should be a pale yellow. I should have taken pictures of the nos one I had. I am right behind you on the cluster I am building. I need to get the other part of the cab puller. |
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