1700 thermostat/cooling flap help

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1700 thermostat/cooling flap help Empty 1700 thermostat/cooling flap help

Post by Muffler Bearing on Fri Jul 03, 2015 9:03 am

I have a 72 bus with a 1700. I have never needed to look inside the cooling ducts until now when I replaced the oil cooler. My question is should I leave the thermostat flaps like they are and have been for years (driver flap down and pass up) or should I wire it open? It looks like the air has not been passing over the cooler at all really. I could maybe rig up something to allow me to move it manually. Thanks in advance
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Post by type4revolution on Fri Jul 03, 2015 11:23 am

Put it in its original configuration by the book with thermostat
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Post by Muffler Bearing on Fri Jul 03, 2015 4:52 pm

Do you have a thermostat for sale?
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Post by type4revolution on Fri Jul 03, 2015 5:00 pm

I'd have to check is that all your missing
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Post by Greg on Fri Jul 03, 2015 8:40 pm

Muffler Bearing wrote:(driver flap down and pass up)

From your description, it sounds like you have them open already. The way they work isn't intuitive at all. Driver flap goes down to direct more air over the cooler and the pass goes up to send more to the cylinders.
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Post by Muffler Bearing on Sat Jul 04, 2015 12:31 am

I have the bracket,the wire and nut. If i have looked correctly I believe th flaps are in the warm up position until the thermostat heats up then pulls the cable that is attached to the flaps and moves them into the operating temp position. Thus pushing air thru the cooler. My flap is laying on my cooler and I do not see how air could pass thru it
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Post by type4revolution on Sat Jul 04, 2015 8:51 am

Check your flaps they can be bent and easily damaged if some one has gorilla gripped it at some time in its life. Also make sure everything is in place and installed completly. The main flap rod should be spring loaded.
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1700 thermostat/cooling flap help Empty asymmetrical type 4,life

Post by type4revolution on Sat Jul 04, 2015 9:00 am



Last edited by type4revolution on Sat Jul 04, 2015 9:27 am; edited 3 times in total
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Post by Muffler Bearing on Sat Jul 04, 2015 9:08 am

It works good. All it needs is a thermo and thermo bits.
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Post by type4revolution on Sat Jul 04, 2015 9:09 am

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Post by type4revolution on Sat Jul 04, 2015 9:13 am

I buy them new for my customers. You can get them from the type4 store or evwparts.com and you can find some good ones on the Vw classified site
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Post by type4revolution on Sat Jul 04, 2015 9:23 am

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Post by Muffler Bearing on Tue Jul 14, 2015 4:11 pm

For the moment....let it stay closed or wire it open?
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Post by Greg on Wed Jul 15, 2015 12:19 pm

if you have all the pieces to the thermostat system, it should be held open by the spring. You want the driver side almost laying over the cooler.
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Post by Muffler Bearing on Wed Jul 15, 2015 3:51 pm

It is laying on the oil cooler as of now. I don't understand this type 4 stuff.
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Post by Greg on Wed Jul 15, 2015 4:24 pm

can you post a picture of the flaps, as they are now. Although it sounds like they are in the hot position.
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Post by Muffler Bearing on Wed Jul 15, 2015 9:59 pm

1700 thermostat/cooling flap help 2D682886-2D46-43F1-9F61-52BFDA031833_zpskfwialh8

This is how it sits when left alone.
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Post by Greg on Thu Jul 16, 2015 8:43 am

I believe that is the "hot" position. that's where mine are, if you don't have a thermostat, that's how you want them to be. That way the flap can grab some of the incoming air and force it into the oil cooler.
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Post by Muffler Bearing on Thu Jul 16, 2015 10:41 am

Ok, thanks.
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