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- - RE: Tachometer (https://67-72chevytrucks.com/vboard/showthread.php?t=688792)

chanclas90063

11-16-2015 07:30 PM

RE: Tachometer

Hello Group, I have a 1970 Chevy C-10 and the tachometer does not work. It looks like it is missing the needle. I purchased a new one from Brothers and when we pulled the bezel off, it appears that the entire back is sealed. Is it necessary to break the seal to install the new tach?? Thanks for any advice or suggestions...

michael bustamante

11-16-2015 07:42 PM

Re: Tachometer

love the screenname. my gramma was very accurate with her chanklas! haha
are you replacing a factory tach?

leftybass209

11-16-2015 09:13 PM

Re: Tachometer

Quote:

Originally Posted by chanclas90063 (Post 7378520)

The instrument cluster must be partially disassembled to install a new tachometer. There is nothing "sealed" from the factory. There's a series of screws around the perimeter, the bulbs need to be removed so the circuit can be removed from the back, and it should be fairly self explanatory when you remove pieces as to the installation.

chanclas90063

11-17-2015 11:40 AM

Re: Tachometer

Quote:

Originally Posted by michael bustamante (Post 7378531)

love the screenname. my gramma was very accurate with her chanklas! haha
are you replacing a factory tach?

I'm not sure if it is the original, but it appears to be original. I ordered an original replacement which appears to fit the bezel.

chanclas90063

11-17-2015 11:44 AM

Re: Tachometer

Quote:

Originally Posted by leftybass209 (Post 7378650)

If you are correct, then the cluster I have is not factory. When I removed the cluster, the back appears sealed with a thick plastic covering the back of all the instruments and is sealed. Maybe I will send this tach back to the vender and just purchase a complete replacement set already for immediate installation. Thanks for the suggestions and ideas...

EARNHARDT#3

11-17-2015 12:02 PM

Re: Tachometer

Quote:

Originally Posted by chanclas90063 (Post 7379265)

That's the flexible printed circuit board. Go ahead and take it off.

michael bustamante

11-17-2015 12:45 PM

Re: Tachometer

can you post a pic of the front and back of the cluster? that would help alot

chanclas90063

11-17-2015 03:26 PM

Re: Tachometer

Quote:

Originally Posted by michael bustamante (Post 7379323)

can you post a pic of the front and back of the cluster? that would help alot

Sorry, the truck is a couple of hundred miles away getting an upgraded tranny. The consensus seems to be that the back is removable so that is what we will do. I almost retuned the tachometer but will hold onto it...

leftybass209

11-17-2015 03:36 PM

Re: Tachometer

The original gauges don't look like any of the aftermarket gauges. You can take a quick look at a stock cluster. If your gauges don't look like them, then you have some type of aftermarket cluster. If your gauges resemble original style gauges, then they will disassemble easily.

They're easily identifiable because the numbers and letters are printed on the clear plastic lens, NOT on the gauge itself as you can tell with the new tach you purchased.

lolife99

11-17-2015 03:42 PM

Re: Tachometer

Look here for info:
http://www.earlyclassic.com/tech.asp...Tach%20It%20Up

chanclas90063

11-17-2015 05:16 PM

Re: Tachometer

Quote:

Originally Posted by lolife99 (Post 7379519)

Look here for info:
http://www.earlyclassic.com/tech.asp...Tach%20It%20Up

This is great, thank you...

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