<VV> Re: Thermisters (Now plug depth)

[RoboMan91324 at aol.com]

Hello Craggie,

Thanks for the quick response.  The either / or use of the washer or 
thermocouple makes sense.  Now my concern is how robust is the setup.  If you (or 
someone who doesn't know to be gentle) cranks on the sparkplug while tightening 
it, can damage be done to the thermocouple.  Also, what if the "tiny leads" get 
damaged?  How expensive is a replacement?

I would also like to know if the gauge can be adapted to be installed in the 
standard spot on the dash pod or must it be mounted elsewhere?  Lastly, can I 
assume that two thermocouples can come into the gauge through the use of a 
switch.  This would allow the user to monitor the temp in either head.  I seem to 
recall someone talking about a system that would switch itself between two 
inputs.  Is this part of the system we are discussing, part of a different 
system or a faulty memory on my part?

Do you have a link to the manufacturer's website?

Thanks in advance.
~~~~~~~~~~~~~~
In a message dated 8/15/2005 10:01:15 AM Pacific Daylight Time, NicolCS 
writes:

> <snip> I have always wondered if there is any issue with sparkplug thread 
> depth when you use an under-the-plug thermistor. Doc. <unsnip>
>  
> I've been reading and hearing about this carbon thing since the beginning of 
> time, but, you know I've never actually experienced it.  I wonder if it's 
> one of those myths that just develops a life of it's own.  
>  
> As far as the VDO thermocouple (it's not a thermister) is concerned, it 
> substitutes for the washer and is about the same thickness so I don't think it's 
> of any concern relative to plug depth. The hassle with the VDO thermocouple 
> is in keeping it from rotating as you install the plug. (have to trap it with 
> a skinny screwdriver) and getting the tiny leads up through the shroud (cut  
> a groove next to the boot or cut a groove in the boot).  They work, but they 
> are a hassle.
> Craiggie