Speedometer Issues |
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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Posted: 22-May-2021 at 1:31AM |
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ISI got back to me and said they would recalibrate it now or at the end of the driving season for no charge. I will wait until the driving season is over and then send it back. Thanks for the information Rivercrest, but it looks like ISI will make it right for no charge. |
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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Rockatansky
Senior Member Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6059 |
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i saw the 1 of the Last Of The Montegos on the road today
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72 GT Ute
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Rivercrest
Member Joined: 07-December-2019 Location: Manitoba Canada Status: Offline Points: 175 |
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Although it is not near you these people are well known here for their good service: Located in Winnipeg. They do speedo calibration and repairs. They do all Winnipeg police and RCMP units. Perhaps they can give you advice.
Sobering Automotive Centre Ltd 3.9 (131) · Auto repair shop 7+ years in business · 1575 Dugald Rd · (204) 661-8525 |
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Bob
1974 Cougar XR7 with a 72 351C |
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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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I remember that last Cougar, I saw a new one on a dealers lot in about 1999. That was a modern day AMC Pacer, ugly and pitiful. I cringe thinking of the AMC Pacer, my parents considered trading our 72 GT in on one when we were in Germany. The thing was smaller than the Gran Torino, driving in Europe was interesting in city streets. I recall our trip to Italy, and trying to get it washed near Piza. It was too wide for their machine, they had to wash it by hand. I need to locate those old slides, my parents took plenty of pictures back then.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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Good God man. I never knew this existed.
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californiajohnny
Moderator Group Joined: 05-October-2013 Location: winlock, wa Status: Offline Points: 14606 |
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years ago i towed one of those cougars... what a disgrace kinda like what they did to the nova and lemans of those years... sad don't even begin to describe those cars! what the hell were they thinking?
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JOHN
74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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True but thankfully Ford kept the Foxbody V8 powered and kept the Ford Probe...as a FWD car that would get stuck in 4-6 inches of snow, and killed it off. And then brought it back as the "new" Cougar for the 99-02 model years. And was thankfully put out to pasture.
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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A couple things. I looked into lube for speedometers last year. My speedo got this horrific chirp noise issue along with jumping issues at low speed.
I spent time researching and found the only oil you want to use is supposedly 3 in 1 Mineral oil. Lubes like PB blaster and WD40 work ok but dry out. the 3in1 oil is a mineral based oil and seems to be what's needed. On the speedo cables, All I have ever used is a can of spray lithium grease, but I am sure there are specific lubes for cables. Another oddball issue I ran into was my GTS has had factory cruise control items added in. Never used them, nor finished the install mainly because for some reason just not worried about it. I have had the speed sensor that the main speedo cable screws into, lock up and fail ruining a cable. In turn stripping a speedo cable gear. Typically what I do on gear replacements... I order the correct gear for the tail shaft, seal kit for the tail shaft, and new speedo gears. Fun fact: Manual transmission speedo and tail shaft gears have a helix pattern that is reverse of the automatic transmission counterparts. |
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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Steve M.
Senior Member Joined: 08-June-2019 Location: Florida Status: Offline Points: 1740 |
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OMG.....I remember all of that. His wife drank rubbing alcohol and ended up in the hospital. The "NO TURN ON RED" thing was crazy.
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Steve M.
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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Signage everywhere. "55 Saves Lives". And Ma. Governor Dukakis got around the federal right on red by putting up bo turn on red at almost every intersection. Sorry for the off-topic irrelevance.
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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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There was a song about it, "I can't go 55." Those were sad years, low speed limits and lower powered cars.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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Why do speedometers go up to 140 when the cars can't GO 140, and IF you did, you would go to jail?
Some 80s-90s comedian used to do a bit about this.
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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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californiajohnny
Moderator Group Joined: 05-October-2013 Location: winlock, wa Status: Offline Points: 14606 |
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i bought the white face overlays for my car... i like that as it makes them easier to see in the daylight since the sport cluster sits way back in a dark tunnel so to speak. and since i'm running red LED's they are now easier to read at night vs the black
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JOHN
74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
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Rockatansky
Senior Member Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6059 |
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IIRC there was a White Face Gauges outfit that had an upgraded MPH speedo and 7k tach overlay but last time i looked they were no longer shown on the page. probably a bunch of complaints that the overlays required recalibration, which as i recall was clearly spelled out in the description OK, the pics are still there in these listings, 160 mph & 8k tach Edited by Rockatansky - 17-May-2021 at 4:11PM |
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72 GT Ute
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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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That's great, I was hoping a company like that could calibrate to another range. I'd like more than 120, but I'm not sure how much more would be better. The marks get closer together, which isn't really a good thing. I'd love to get a tach labeled and accurate to 7000rpm.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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I honestly don't think I would ever bury the speedometer in any old car without a full race restraint and roll bar. When I was a kid it was never an isssue but now with the speed comes loss of license and six years of surcharges that go along with it.
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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I agree, it is kind of cool to have a 200 mph speedometer, but not as cool when the speedometer is marked in km/h. On the plus side though, if anyone wants to do a custom overlay for our speedometers, it looks like ISI can calibrate it to those speeds. So there is no need to hunt down a rare and super expensive police speedometers.
I haven't had a chance to contact ISI yet, I post their response when I hear back.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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Don't look a gift horse in the mouth. Lol
I bet they would fix it after you get it ready for bed in the fall. It is pretty cool though, you have to admit.
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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So I figured out the problem. The speedometer was my problem with the bouncing needle and inaccurate readings I was having last year. The cable is fine.
Since the install of the rebuilt speedometer, it made no sense that the odometer was reading accurately, but the speedometer was off. Randy was on the right path when he indicated it might have something to do with the overlay. When ISI calibrated the speedometer, they calibrated mph to the kilometer scale (which are the big numbers on the overlay), which is why it was reading so low. So now, when it shows 50 km/h, I am actually going 50 mph. I used the GPS on my phone and the speedometer very accurate now when I use MPH, within 1 mph or so. So Don was right when he said I have a 200 mph speedometer - I think this has to be the first 200 mph speedometer in a Torino!
Here is a pic of the speedometer. The big numbers on the outside are supposed to be in km/h, but it is now calibrated for the big scale to be MPH. So I am assuming this was an honest mistake by ISI, especially since no 1972 car has km/h from the factory (Canada didn't get metric speedometers until the late 1970s). On top of that, the US cars that have km/h scales have the km/h scale as small numbers. What do you guys think is the best way to get this resolved? I don't want to send my speedometer back and wait to another 4 months losing out on the best driving time. I am hoping I can bring it to their attention now, but wait until the fall to send it back to ISI. I would also think they should be doing the recalibration for free, although I will probably get stuck paying shipping at least one way. Any advice is appreciated. |
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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Earlier in the thread you said you have an overlay converting to Kilometers.
Any chance that is inaccurate or installed wrong? (off-center maybe?) Since the Odometer and speedometer are driven by the same cable, any problem before the speedo head would be a shared problem. Only one part working sounds like a problem in the rebuilt unit.
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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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How far off is the speed? Try a different gear after driving say 10 miles on the dot. If the speed and odometer are both off you will know.
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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So to update this thread, I finally got my speedometer back from from ISI and it's still not reading accurately. It now reads way slower than actual speed, but seems to be smooth and consistent. Oddly, I clocked a distance and the odometer seems to be reading accurately. I am hoping it's not something with the speedometer rebuild, because I don't want to send it back. I will drive the car a bit more and continue to check the accuracy of the odometer.
I removed the speedometer cable and lubricated it with white lithium grease. It seems to move smoothly when installed, but it does hit a tight spot when installing. Anyone have any ideas?
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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handsofstone
Senior Member Joined: 13-April-2018 Location: Northeast Status: Offline Points: 3941 |
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Headers can cook them as well.
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Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
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A lot of "bouncing speedos" are caused by a burr or a dry spot on the cable.
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"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
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Steve M.
Senior Member Joined: 08-June-2019 Location: Florida Status: Offline Points: 1740 |
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Good question,
I did test the fuel, oil pressure and temperature gauges in the sport cluster that I installed in my 1976. I don't recall the exact ohms.(13) I think. I did notice that they're all the same. They all work in the car as accurately as any 1970s technology can be. |
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Steve M.
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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I took the speedo out of the cluster and it looks in excellent shape. No dirty or rust, it looks nearly new, although I am sure there is some wear. Those speedometers have a top jewel design and the jewel becomes oblong from use over time. We can rebuild it, re-magnetize the shaft, new jewels and calibrate, should be good as new. I might send it off this winter, but I will fiddle with it a bit more in the mean time. On the fuel gauge, I was wondering if anyone has bench tested one before? I was going to try and rig something up to vary the resistance to ground, from 10 ohms to 70 ohms to see if the gauge reads properly. Just not sure the best way to go about it with the cluster out of the car. Any ideas? |
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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72 RS 351
Senior Member Joined: 04-September-2014 Location: Knoxville TN Status: Offline Points: 2765 |
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Dorman parts are the current standard for later cars, and they are expanding to other makes and years. I wonder where those are made, because they make so much. Lots of it is appreciated, but much of it is low quality also. I like that voltage regulator too. Is that for a 9v battery, I always wondered why they had those odd terminals?
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000+ rpm 351-4V &4R70W 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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Yes, that is it. I just checked the part number in the catalog and it is correct for the gauge cluster cars (std gauages use a different part). That is way cheaper than the NOS motorcraft ones on eBay. I just hope it's not a made in China special.
Yeah, i saw the speedometer cables are still available. I will try to lubricate mine first, as I question if the aftermarket ones are any good. Parts all seem to be offshore junk.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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Rockatansky
Senior Member Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6059 |
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is this it? and i just accidentally ran across speedo cables on Rockauto, cheap like <$15 under the Interior heading IIRC
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72 GT Ute
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72FordGTS
Admin Group GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 5802 |
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Do you know where I can get one? I guess just hunt for one on eBay? Now that I have the cluster out, I might as well give it a good once over. I do have a new repro PCB, but my original still looks solid, which is why I haven't swapped it yet.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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