Speedo mystery

It *may* be a bad cable.

Could also be the brass bushing at the cable/shaft inlet to the speedo. After ~35 years, it runs out of lube and sticks periodically.

And welcome back :-)

Speedy Jim

I would also look at the speedo bearing cap to make sure the hole hasn't rounded out after 35+=20 yrs

Mario Vintage Werks resto

first, congrats on the Ghia....the problem you are having is possibly a dry speedo cable, but likely to be a dry bushing in the speedo itself...does it make a nice squeeling noise too? i've had the "pleasure" of disassembling three speedo's here lately(68 type1 speedos) and lubing them.....one had actually stopped working due to a part vibrating loose inside....if you want to eliminate the cable as the culprit an electric drill in reverse with a flexdrive and number 2 square(robertson) bit can be placed in the input and spin the speedo...if the sticking/fluttering/raising hell continues, take the speedo apart and clean and lube...

Is there a good way to take a later speedo apart? When I took mine apart back in 1984 for this problem, I remember prying some press fit lip open all around the perimeter of the speedo. It wasn't too pretty, although I didn't have too much problem fitting it back together later.

that is the only way...i use a very thin screwdriver that i made from a regular flat head...i ground it down thin....i can insert it under the ring with very little damage....when i put it back together i use a metal wheeled "spline tool" that is used to replace mesh screen in windows to press it back down and it usualy takes any dings out too....

Oh well, I hoped someone had figured out a better way. I'm going to take mine apart some time soon. It need re-lubing, the indicator light plastic needs replacing and all the bulbs and bulb holders need tweaking.

The screwdriver trick works fine as long as you go slow with it. I use the screwdriver to press the lip back down when I was putting mine back together(about 10 years ago...)

FYI...you can get new gels, sockets and bulbs for the speedo at the bughaus. Or you can just buy a new speedo head. ;-)

Chris

Wow, lots of very good info there, truly appreciated. When I find the culprit I'll be sure to let you know ;o) Thanks for the congrats and warm welcome.

Thanks for that link. I guess I hadn't come across them before.

Chris, the pointer does not need to come off to access the gels....the gels in my 68's speedo(and a few others i have disected over the years) have been held by a rubber "cap" that sits in front of the bulb openings....to change the gels i'd take the ring/glass off, then pull the fuel guage(68+), then take out the two screws that secure the speedo/odo "guts" to the casing(rear of casing)...then the rubbers i'm talking about are still connected to the casing....i can post a pic if needed for clarity, i have one apart now...

I would like to see the pics.

| > Chris | >

| | Chris, the pointer does not need to come off to access the gels....the gels | in my 68's speedo(and a few others i have disected over the years) have been | held by a rubber "cap" that sits in front of the bulb openings....to change | the gels i'd take the ring/glass off, then pull the fuel guage(68+), then | take out the two screws that secure the speedo/odo "guts" to the casing(rear | of casing)...then the rubbers i'm talking about are still connected to the | casing....i can post a pic if needed for clarity, i have one apart now... | |

eddie....i will snap some pics and post tonight...

Thanks Joey, I eventually want to change mine without screwing it up.

| >

| | eddie....i will snap some pics and post tonight... | |

here ya go Eddie...as you can see, you don't have to remove the pointer nor the faceplate to change the colored gels....hope it helps a bit...any more questions, feel free to ask.

That's cool.

Still don't understand calling them "gels" though. They were never made of gelatin, were they?

Check this out maybe.

Thanks again. Are all of the speedo's basically the same? I forgot to mention, mine is a 65.

| | here ya go Eddie...as you can see, you don't have to remove the pointer nor | the faceplate to change the colored gels....hope it helps a bit...any more | questions, feel free to ask. | |

Ah...that explains all those speedos on Broadway.

yours should be the same, but you won't have to remove the fuel gauge...LOL