Testing Speedos?

Gibbo Custom Title Time!

1,685 posts · joined Jun 2004 · 2 Dec 2004, 9:18 am

#273572

Morning all!

I dont spose there is a way to test speedos?

I have about 12 to test!

Cheers

VWFREAK VWFREAK

2,577 posts · joined May 2004 · 2 Dec 2004, 9:22 am

#273575

Ask Dave Birchall or Dave Becker.

MikeM Buggy Head

1,429 posts · joined Aug 2003 · 2 Dec 2004, 10:05 am

#273583

Easiest way I've seen of late is to use a GPS. Most GPSs have a current speed reading. Just compare that to you speedo.

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Gibbo Custom Title Time!

1,685 posts · joined Jun 2004 · 2 Dec 2004, 11:44 am

#273625

Erm, I mean that they actually work, not the acuracy.

Do you mean some kinda techy GPS system fitted to a car?

VWFREAK VWFREAK

2,577 posts · joined May 2004 · 2 Dec 2004, 11:48 am

#273628

I've used my work police radar gun before, but that only works when fitted to the car. I've heard of drills being used, but I'm unsure of the maths behind it. Works in theory I suppose.

MikeM Buggy Head

1,429 posts · joined Aug 2003 · 2 Dec 2004, 11:51 am

#273632

Gibbo wrote:Do you mean some kinda techy GPS system fitted to a car?

No, just a cheap hand held one in the car with you will do.

Even devices like the "road angel" that use GPS technology have a current speed readout.

as for testing if they work out of the car, yeah spin the shaft and the needle should move 🙂

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Gibbo Custom Title Time!

1,685 posts · joined Jun 2004 · 2 Dec 2004, 11:53 am

#273633

Thanks all.

Yogie Moderator Custom Title Time!

1,608 posts · joined Jun 2003 · 2 Dec 2004, 12:36 pm

#273669

Lionel Otto instruments in Evans Road Salisbury test them. Not sure how much it costs but we just had 2 beetle speedos rebuilt and had one of them converted to kmh for $160 if that helps. ( We got the kmh face plate from an L bug to fit on to the older speedo and he recalibrated it)

Yogie

Gibbo Custom Title Time!

1,685 posts · joined Jun 2004 · 2 Dec 2004, 12:38 pm

#273671

Excellent info, thats just around the corner from me.

Cheers!

Gibbo Custom Title Time!

1,685 posts · joined Jun 2004 · 2 Dec 2004, 12:57 pm

#273676

A very kind person just U2U'd me this info, thanks!

Hi when I tested my speedo I had a small nylon tool used for adjusting t.v's , filed down the end to fit in where the cable goes and used a drill ( running backwards from memory), to turn it. and if it sqeals the internal gears need lubrication.
Steve

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 2 Dec 2004, 1:52 pm

#273693

If you just want to see them spin the needle get a battery drill n old cable hook them up and spin the drill in reverse.... easy

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

blutopless2 DAMSLO

2,457 posts · joined Jan 2004 · 5 Dec 2004, 5:32 pm

#275050

should be able to test the accuracy with the drill also.. if you know how fast the drill is running then you can calculate the reading on the speedo.. should have the conversion on the speedo - usually stamped on the back.

see.... air and water do mix 😉

1974 1300
1997 MK3 Golf GL
2003 NB Cabrio
2012 Golf VI GTI
2014 Audi A4 Quattro

jonno-t3 Officially Full-On Dubber

289 posts · joined Apr 2003 · 6 Dec 2004, 5:47 pm

#275527

yeh...as vw54 said...in the drill and wack it in reverse....my dewalt 12v does about 70km/h!!!

jonno

"if only everything in life was made like a volkswagen"