Am I missing the Bellows Thermostat?

bvd · Last edited by bvd on Sat Jan 08, 2011 5:14 pm; edited 1 time in total

Hey guys, these pictures are from my 74 standard which I believe has a rebuilt engine in it with a case from a '75 beetle. I've been reading up on the cooling system and the importance of the bellows thermostat (which as I understand are not produced anymore and fetch high prices). Anyway I looked under my right cooling tin sled today between the push rod tubes and do not see one...I am assuming I am looking in the right spot?...thanks

here are some photos:

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Is this where the thermostat bracket mounts to the case...in the middle???

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Foreboding Zombie Graveyard in the background...

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Glenn · Posted: Sat Jan 08, 2011 2:50 pm Post subject:

Looks like it's missing.

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BTW... you should come to the DasVolks meeting this Wednesday in Farmingdale.

Also you should reduce the size of those pictures to help the topic load faster.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

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bvd · Posted: Sat Jan 08, 2011 6:07 pm Post subject:

Thanks Glenn. So I guess all I really need to get is the thermostat bellows, the thermostat bracket, and then the rod that connects from the top of the bellows to the flap linkage on the fan shroud right? Is it possible to see if the flaps on my fan shroud are there and intact with the engine still in the car? I am hoping the PO didn't remove those as well.

From what I can tell, this would be the correct set up for my car?
http://www.thesamba.com/vw/classifieds/detail.php?id=1055737
If the thermostat had failed the bellows would be fully expanded correct?

And Glenn, does Das Volks meet once every month? I have to work this Wednesday night, but I hope to come to one soon.

norcalmike · Posted: Sat Jan 08, 2011 6:26 pm Post subject:

yeah, that should do it. i doubt you will find a better deal than that.

Bruce · Posted: Sat Jan 08, 2011 7:07 pm Post subject:

Antonio Trejo · Posted: Sun Jan 09, 2011 9:12 am Post subject:

emu88 · Samba Member Joined: May 20, 2009 Posts: 1857 Location: UK

Yeah mine is missing too. I think people remove or or neglect to replace them in hot climates - stupid thing really, cause they cost a lot for what they are.

bvd · Posted: Sun Jan 09, 2011 1:10 pm Post subject:

Hey thanks for all the help and great photo references guys...it's really helping me to understand how this whole system works. Unfortunately, I stuck my hand behind the fan shroud today to find that the holes are empty, meaning the flap assembly is not there. I guess in the grand scheme of things it's not all that bad. I just had one more question. I've been trying to determine if my car has the rear air deflector tins, but have been unable to find a picture of them installed. On Rob and Dave's site, they said they are under the rear pulley?

Here they are on Cip1:
http://www2.cip1.com/SearchResults.asp?Search=air+deflector+tins&Search1=Search

Thanks

Bruce · Posted: Sun Jan 09, 2011 2:06 pm Post subject:

Here's a pic of the left one installed.

It is the part with the hole in it, directly below the exhaust port. The two shiny screws hold it in place.

This one shows the right one:

Held in place by the same shiny shroud screws.
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emu88 · Samba Member Joined: May 20, 2009 Posts: 1857 Location: UK

Here are my two, left and right:

Seem to be slightly different from Bruces, especially the right one.

AutoLuxLexES · Posted: Sun Jan 09, 2011 4:16 pm Post subject:

why are the air deflectors different?
maybe one for SP motors and other for DP?

Charley

emu88 · Samba Member Joined: May 20, 2009 Posts: 1857 Location: UK

Cusser · Posted: Mon Jan 10, 2011 5:57 am Post subject:

I believe the tins are different because the geometry of the engine is not mirror-like. The #1/#2 cylinder head is more rearward than the #3/#4 cylinder head.
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

priss · Posted: Mon Jan 10, 2011 8:52 am Post subject:

There ia an air scoop that picks up warm air from off the heads and ducts it up through the rear tin where it is connected by a flexable hose to the oil bath air cleaner at the carb pre-heat flap.

Some are on the right, some are on the left. I have a 1970 singleport, mine is on the right.


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