Author Topic: Engine Thermostat  (Read 425 times)

0 Members and 1 Guest are viewing this topic.

Offline cliffrun2

  • Newbie
  • *
  • Posts: 3
Engine Thermostat
« on: 13 January 2019, 22:39 »
I have a 71 Super AutoStick and noticed it does not have the brass accordion thermostat on the engine case below the pushrod tubes.  I have had Beetles in the past and there has always been the thermostat that helps regulate the air flow from the fan.  The engine is the original so I eliminated the thought of a different case.
Any information of clarity will help.

Thanks.

Offline Raymond73

  • Newbie
  • *
  • Posts: 41
    • TheSamba
Re: Engine Thermostat
« Reply #1 on: 13 January 2019, 23:03 »
Those are getting harder to find. The site below still has them though.

http://www.awesomepowdercoat.com/thermostat_new_used_rebuilt.html
'70 AS, 30 PICT-3

Offline bhartwell59

  • Jr. Member
  • **
  • Posts: 79
    • strategy + unique ideas = greater awareness & results
Re: Engine Thermostat
« Reply #2 on: 14 January 2019, 04:22 »
Yep, that's where I got mine... $130
1974 zambezi green Ghia vert

Offline cliffrun2

  • Newbie
  • *
  • Posts: 3
Re: Engine Thermostat
« Reply #3 on: 14 January 2019, 20:04 »
Thanks for the replied information, but I am asking if an engine without the thermostat is common for autostick cars/engines.  As I stated, this engine is the original and I don't see any indication of a modification.

Offline Raymond73

  • Newbie
  • *
  • Posts: 41
    • TheSamba
Re: Engine Thermostat
« Reply #4 on: 14 January 2019, 23:34 »
Sorry for the misunderstanding. I would say that it most likely had a thermostat installed when it was new.

For example, take a look at the manual for your year. https://www.thesamba.com/vw/archives/manuals/71bug/71bug.pdf

On page 64 Technical data: Engine
"Air cooling by fan, thermostat controlled"

It's probably common that it was removed by someone. Is there a mounting stud on the bottom of the engine (or maybe a remnant of one)?
'70 AS, 30 PICT-3

Offline 68autobug

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3409
  • 68AutoBug - Lee in Australia
    • My 1968 Autostick Beetle
Re: Engine Thermostat - THERMOSTATS VERY RARE IN AUSTRALIA --
« Reply #5 on: 15 January 2019, 09:47 »
Hi again Cliff,
All thermostats were removed at the first service by VW mechanics , or at a later date , when one was found to be be still in the car. This was in Australia. As far as I know all air cooled engines came with a thermostat.... and they should all still have one...
but to VW Australia Policy was to remove them [from local VW trained VW mechanic - who used to adjust the thermostat so they wouldn't work] and throw them in the trash... so, they are very rare in Australia.... it seems that someone high up in Volkswagen Australasia thought that the engines would run  cooler if it didn't have a thermostat... Now in very high temperatures [like today 40C] having a thermostat would have little effect as the engine would get hot very fast anyway.... but in the winter when it can reach 0C degrees in parts of Australia, the thermostat would keep the engine at the same temperature.... so it would warm up very fast and stay warm regardless of the outside cold temperature....  so, without the thermostat, it would take longer to get to operating temperature, and may actually stay too cool.... because it would take longer to get to operating temperature means it would wear more than normal ------ as far as i know engines overseas kept their thermostats.... You can buy a new thermostat in the USA... CIP1 used to sell them. they are a new design... maybe from Brasil or Mexico.???


LEE in Australia

-- Helping keep Autostick beetles on the road --
   -1968 Silver metallic 1600 single port Beetle - with BOSCH  SVDA and new BROSOL H30/31 carburetor with GENIE Extractor exhaust system with a quiet thunderbird muffler

http://photobucket.com/68autobug

Offline cliffrun2

  • Newbie
  • *
  • Posts: 3
Re: Engine Thermostat
« Reply #6 on: 15 January 2019, 20:38 »
Raymond73 thanks for the attachment.  I saw the statement you referenced.  I didn't see anything on the engine block, but I will make it a point to add the thermostat when I pull the engine for spring cleaning.

Also, to Lee, I appreciate your wealth of knowledge on matters of the VW Beetle.

Offline 68autobug

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3409
  • 68AutoBug - Lee in Australia
    • My 1968 Autostick Beetle
Re: Engine Thermostat
« Reply #7 on: 16 January 2019, 13:02 »
The thermostat is connected to a piece of flat metal that goes across the back of the fan housing. It should have a spring attached to it to keep the thermostat flap open...  the thermostat flaps are in the bottom part of the fan housing... they are attached to the flat steel bar at the back with little clips... I have seen many fan housings with the flaps taken out... these should be left in as they direct the cooling air over the engine, otherwise it is just a big hole...

Lee in Australia
-- Helping keep Autostick beetles on the road --
   -1968 Silver metallic 1600 single port Beetle - with BOSCH  SVDA and new BROSOL H30/31 carburetor with GENIE Extractor exhaust system with a quiet thunderbird muffler

http://photobucket.com/68autobug