Well...I gave in and sent my malfunctioning tachometer (2003 VS with knock-off VDO gauges) to North Hollywood Speedometer to be rebuilt.  I shipped it on a Monday, it arrived at the shop that Thursday.  They called after taking a look at it and we discussed the issues I was having and the plan to get it in working order.  Basically they recommended removal of all the old knock-off internals and replacing them with quality VDO parts.

My estimate for a complete tachometer rebuild / conversion to VDO internals: $365.00 ($345.00 plus the $23.00 for shipping).  Not a bad deal after all was said and done.  My biggest concern was that it would come back home with completely different connections and require me to delve into the wiring, which I really wanted to avoid!

Less than a week later it was delivered to my front door.

I am quite pleased to say the leads were all the same as the originals.

I spent some time this morning putting it all back together and to say I am happy would be quite the understatement!  It actually took me longer to draw the schematic to identify the connections and number the loose wires than it did to put the gauge back in the dash!

Thank you to all for the guidance and suggestions I got on my prior post about the tach.  Not only that, but having the historical posts to look through while figuring out what exactly I needed to do was incredibly helpful.

In the end: North Hollywood Speedometer is highly recommended by this user, and many others on this site I imagine!

Original Post

North Hollywood Speedometer did a gut rehab of my tachometer 6 years ago.  Their turnaround was pretty fast and it's still going strong.

Fun fact - I don't know if it's still true, but Palo Alto and North Hollywood used to be owned by two different Hartmuts. 

North Hollywood = Hartmut Behrens

Palo Alto = Hartmut Mees 

 

On my 2003 VS there were “L” shaped brackets that held all the gauges in the dash.  They were mounted behind the dash and one end pressed against the gauge while the other end pressed against the back side of the dash.  Tension on the nut effectively pulled the gauge into the dash and held it in place.

I imagine yours is held in place the same way,  but each build is different from the last.

In the photo, you can see one of the two studs (near my thumb) that the bracket ran though and were held in place with a hand tightened nut.3A1ADDEE-267A-44E9-8E8D-E625B9C6E9EA

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fuguboy posted:

How does the tach mount ? I looked in the back and no thumb screws on the studs. Only pushed in the gasket? I need to send in my Chinese piece for repair anybody do a 8000 rpm upgrade ? Thanks in advance for any info. 

If you have the rubber gasket on and it fits snuggly when pressed in, that's all you need to do. If it's not quite snug enough you can wrap electrical tape or painters tape around it a few times to make it snug.

If it'snnowhere near snug, you will need the nut and L shaped legs that Mayo mentioned. 

Thanks for replying I think mine is just pushed in with a gasket. Not sure if I will repair my6K,convert to 8Kor buy a vdo 8K 100mm? Who has the gasket for 105/100mm adaptations? Been broke for a year now got to get some stuff off my list. 😳Thanks again ✌🏿

fuguboy posted:

Thanks for replying I think mine is just pushed in with a gasket. Not sure if I will repair my6K,convert to 8Kor buy a vdo 8K 100mm? Who has the gasket for 105/100mm adaptations? Been broke for a year now got to get some stuff off my list. 😳Thanks again ✌🏿

I got the rubber gaskets from Sierra Madre Collection. 

https://sierramadrecollection....al-100mm-p17173.html

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