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Old October 14th, 2017, 06:58 AM   #1
Amber 74
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Default thermostat

My dual port does not have a thermostat or the flaps in the fan shroud do I need to replace them or is it OK to go without them for proper cooling ?
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Old October 14th, 2017, 08:29 AM   #2
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Default Re: thermostat

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My dual port does not have a thermostat or the flaps in the fan shroud do I need to replace them or is it OK to go without them for proper cooling ?
This would depend on a couple of things, but generally, I'd recommend the thermostat and flaps on most VW air cooled engines. If you live in a cold climate it's a must for one reason, and if you live in a hot climate, it's a must for another reason... So basically the only people who don't "need" them are non existent.
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Old October 16th, 2017, 06:07 AM   #3
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Default Re: thermostat

I live in Hot south Carolina . Where do I find everything to replace them ?
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Old October 16th, 2017, 09:21 AM   #4
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I believe John at air cooled.net has the stuff... it isn't old original stuff but is current best case usually
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Old October 18th, 2017, 08:27 PM   #5
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Default Re: thermostat

I'm one of the nonexistent people who doesn't run the thermostat, when I put the chrome fan shroud on the flaps wouldn't function properly so I left it all off, I just make sure I let the engine heat up really good before taking off, I've never really had any problems, altho recently I thought I was having issues, turns out the exhaust I put on back in August has a few leaks, I'm gonna double up the gaskets before it gets to cold

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Old October 19th, 2017, 03:01 AM   #6
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Default Re: thermostat

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So basically the only people who don't "need" them are non existent.
Everyone may "need" flaps but I'm betting after all these years more cars have missing or non functioning flaps than the other way. I've never had functioning flaps in and aircooled VW, but I live in mostly warm Texas and I don't drive an aircooled much in really cold weather. If you have everything apart and are willing to procure all of the proper parts and make sure they are all assembled and functioning correctly you would probably be better off. Lots of videos and info out there to guide you through the process.
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Old October 19th, 2017, 03:49 AM   #7
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Default Re: thermostat

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Everyone may "need" flaps but I'm betting after all these years more cars have missing or non functioning flaps than the other way. I've never had functioning flaps in and aircooled VW, but I live in mostly warm Texas and I don't drive an aircooled much in really cold weather. If you have everything apart and are willing to procure all of the proper parts and make sure they are all assembled and functioning correctly you would probably be better off. Lots of videos and info out there to guide you through the process.
I'm Betting you're right, Mr. Parker... but I always consider the the saying... "Just because you can doesn't mean you should"... right? Knowing I live near you (Garland G Bush at 78)... I know we can get away without them a lot of the time, but summer time would be nice to have the air flow directed properly to keep temps regulated... I have only ever had 2 VW's with the full set up on them out of I believe 29 Beetles now... Like you, I give advice better than I follow in this situation... LOL
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Old October 21st, 2017, 02:26 PM   #8
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Default Re: thermostat

I ran my 76x88 slip ins in my 65 bug for 15 years and over 100,000 miles with out the thermostat and flaps. I freshned it up in 03 and just put the flaps in and welded them open to help direct the air. 50.000 so far in the East Tennessee weather. Not really able to tell a radiance but I do drive it on longer interstate trips now tho. You really need all the cooling tins and seals in place.
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Old October 21st, 2017, 05:01 PM   #9
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Default Re: thermostat

Motors wear faster, when they are not hot enough.
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Old November 11th, 2017, 06:52 AM   #10
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Default Re: thermostat

The way it was explained to me years ago was the thermostat moves the flaps to blow air either on the heads or the jugs depending on temperature to keep each at the proper temp. Makes sense to me, don't want either area getting too hot or too cold. Not only do you need the thermostat but it needs to be adjusted properly to put the flaps where the air is needed. Just my opinion.
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Old January 26th, 2018, 03:45 PM   #11
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Default Re: thermostat

There is an excellent tutorial on the Samba under "Engine cooling and cabin heating tutorial" by Paul Windisch. It gives insights into why the aftermarket fan shrouds without vanes are a bad idea. It covers the entire engine cooling and cabin heating process, very well written and very informative for those who haven't seen it.
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Old January 27th, 2018, 06:44 AM   #12
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Default Re: thermostat

I have never run heat in any of my VW's, I just dress on layer during the cold days and try not to exhale onto the windshield, I keep my car under parked under thr carports so I never hafta scrap snow and ice iff, every once in a while I might hafta use a broom to get snow that has blown on it, but that's it

As for the seals in the engine bay, well with all the sheet metal gone it would be tough to seal it up, I do have all the cooling sheet metal on the engine except the thermostat, back in December I had just put 10,000 miles on the engine and it's still running strong, I should invest in cylinder head temp gauges but their out of my budget at the moment, my oil temp never gets above 180 degrees F, I have no idea what the proper oil temp should be, but on the hottest days of summer it does creep up but never gets above 200
So far this winter my car has been more dependable than my wife's car, it starts every time no matter how cold it is

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