Jack

        The lower Temp’ Switch Range keeps the Eng Too Cool to be @ It’s Most Efficient Best Performance ~

> On 24 Aug , 2021, at 7:13 AM, Jack R <jack007@COMCAST.NET> wrote:
> 
> Mark,
> 
> I have an 84 Westy, with working AC, and a 2.1L also.  I put in the "lower temp switch", to help make sure my van runs cool when in traffic, so it turns on earlier.  I haven't had an issue "yet"!?!?
> 
> Why is the lower temps switch "wrong"?  Should I put in the regular switch?
> 
> Thanks!
> 
> Jack
> 
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of vw_van_fan_Mark
> Sent: Monday, August 23, 2021 11:38 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Replacing radiator Fan Thermo switch questions
> 
> The new switch you have is the standard replacement temp range.
> 
> The "wrong" switch turns on the fan at lower temps than that.
> 
> The early watercooled vans used one that turned on at higher temps than
> your new one.
> 
> Bentley page 19.12 shows the original factory temp switch ranges for
> waterboxers.
> 
> After you replace it, look closely at your old one to see what temp
> markings are on it.
> 
> Mark
> 
> Tom Buese wrote:
>> My thermo switch is bad & I have a new spare that is rated 85-93 degrees C. I read an old post from Mark Drillock talking about the several different switches that were available 12 years ago & a problem w/ using one that operates at a lower temp thus causing the #7 fuse  to overheat & melt the plastic around the fuse holder!  I dont want to install my new switch if that is the wrong one!
>> Do I have the best switch or did I get the wrong one? Inquiring mind needs to know before another 500 mile RT on Friday! TIA!
>> 
>> Sent from my iPhone
>> 
>> 
>> Sent from my iPhone
>>