Modifying VDO 52mm gauge - CHT

[Sandeep]

Hi,

I have a 52mm VDO CHT gauge (black ****pit style) and I want to modify the face of the gauge. It does not look like the black bezel comes off.

Has anyone modified the interior of this style of gauge ?

It looks like you could take a hacksaw blade and cut the top off the gauge, about 1/4" below the bexel, being careful to just break through the plastic. To put the gauge back together would require a little plastic glue.

Any suggestions ?

In case you are wondering why I want to do this ... I have modified my datalogger to sample all 4 CHT's and signify the hottest temp of all 4 cylinders. I will light a green LED in the gauge for temps of 300F to 325F, a yellow LED for temps of 326F to 360F and a red LED for temps above 361F (all of these are user selectable through software). The needle in the gauge will work as originally designed.

Sandeep

[fweem1970]

I have modified many VDO Gauges and its quite easy to get in to one. the first thing i do is take a small common screwstick and insert it between the gauge body and the bezzel. then lightly pry/ dig under the bezzel. go around the whole body opening the bezzel. once you open it do the modifications you wish then place the bezzel back and gently push/hammer the bezel back down and your ready to rock and roll.
more info can be found at http://www.pelicanparts.com/techarticles/Mult_gauge_repair/mult_gauge_repair.htm