Thermostat

Beetleboi -Greg- · June 27, 2008, 10:14:40 PM

If thermostats are so important to the VW Engine? Why aren't they available? They are on the Samba used... but how can you trust that they work?
I'm going to check tomorrow for the pull rods that you check behind the fan housing tomorrow. VW-Resourses said if you have pull rods you have flaps. Hopefully I just need new tin and the 50 dollar used thermostat. m-d

matt · June 27, 2008, 10:30:10 PM

THermostat cant be stretched out, in fact there is a tolerance height to them, dont have the book in front of me,

but if you have a few vw books, that specification will be in one of them...........

M

Beetleboi -Greg- · June 27, 2008, 10:44:50 PM

I don't get what stretched out thermostats have to do with anything. Or is that what usually happens then they go bad? The last thermo I replaced was on my 65 Ford Falcon and that was a lot easier than this lol.
Nothing like finding out that you're missing parts :'(

matt · June 27, 2008, 10:51:49 PM

Engines get hot

Engine heat expands the accordian-type thermostat

this expansion pushes up on the rod to the flaps to open them

Bad thermostat, one has expanded slightly or grotesquely
slightly, will not move the rod the distance it should
hence flaps are not opened to the degree they should be when your engine ishot.........
really expanded ones....well, you could not fit under the car at all.

Last year dissasembled and old engine that had a thermostat which was expanded over a foot ( I remember it was over 2 feet, but dont want to seem too crazy c23 - so I'll say a foot. ) wish I took a pic of it, it was unbeleivable!

the fish that got away

Matt

Beetleboi -Greg- · June 28, 2008, 01:03:33 AM

That makes sense. I'm going to have to look in he bently book and see if there are diagrams of how the thermo is set up. I know I need a bracket too. I'll look for those measurements in the Muir book for the thermo expansion.

lovebus (jack) · June 28, 2008, 10:45:21 AM

you can buy a new kit from cip1 for around $25.

Someone just posted all this stuff, READ!!!

Beetleboi -Greg- · June 28, 2008, 11:32:22 AM

i checked there before i wrote the message. they dont carry it ne more. unless there is a secret link that i am unaware of. aircooled was suppose to carry the kit as well but they no longer carry it. :wallbash:

skymath · July 15, 2008, 02:29:51 PM

check out http://www.ratwell.com/technical/Thermostats.html it will give you all kinds of info.

skymath · July 15, 2008, 02:30:12 PM

but basically if a used thermo is expanded it's probably no good

Beetleboi -Greg- · July 15, 2008, 02:54:25 PM

thanks sky ;D

lovebus (jack) · July 15, 2008, 04:34:18 PM

Great article Sky and good to see your doing your homework, so many people don't know why that stuff is improtant.

njgt-1 · July 15, 2008, 05:00:15 PM

Sky,

thats about the best explanation I've seen as to how these things work. I'm not so sure his repairing one is a great idea but if all else failed, who knows. Keep in mind your bus has the type 1 motor so the flaps & thermo arrangement is a bit different than those with the flat shroud motors. Anyway its a bit warm to worry about them right now!

skymath · July 16, 2008, 10:53:48 AM

I've been reading a lot of the articles on that site (and whereever else I can find what appears to be good info). When you're completely ignorant there's a lot of stuff you need to learn!

njgt-1 · July 16, 2008, 12:26:54 PM

QuoteWhen you're completely ignorant there's a lot of stuff you need to learn!

ignorance is temporary if you have the will to learn and an open mind.

Beetleboi -Greg- · July 16, 2008, 12:57:02 PM

Reading that article, I realized that I don't have the wheel, the wire and possibly even the flaps. >:(

Thermostat

skymath

skymath

skymath