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 Purple Martin
A.k.a.: Martin
Fahrvergnugen
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| posted on February 20th, 2006 at 06:50 PM |
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thermostat and flaps... how do they work?
I'm rebuilding my kombi's 2L at the moment. It has no thermostat or pulley or cable. It has one flap in the fan housing, in the top outlet above
the oil cooler: there is a pic below. The flap has a thing where something attaches to it... but it just hangs there in its "lower" position. The
outlet on the other side of thefan housing has nothing in it at all. Can anyone describe to me (or post pictures of) how the thermostat and flap
system works, and what parts are missing from my engine? I'd like to get it all back to how it should be. Thanks!
1959 red & white Beetle
1975 Kombi camper
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Menangler
A.k.a.: Dave Becker
Custom Title Time!
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| posted on February 20th, 2006 at 07:20 PM |
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Looks like most of the thermo parts have been removed, but they have left the single flap that directs air over the oil cooler probably the most
important part.
You are missing the rod that attaches to this flap, the cross bar, the other flap for the other side, probably the small pulley that the cable runs
through, the cable, the thermostate and bracket.
Not impossible to get if you realy want to make it right.
FAHRVERGNUGEN;
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Experienced when a car and it's driver are in mutual harmony, A unique driving experience, Pleasure, Satisfaction,
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76camper
Fahrvergnugen
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| posted on February 20th, 2006 at 07:27 PM |
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Not uncommon... most people used to think these cars were made in the stone age or something lol hence pretty much all engines not in once peice.
Its important to get this system back to stock... quicker warm ups means lower fuel consumption and engine wear... longer between rebuilds.
Looks like you need:
Main rod which both flaps connect to and the wire from the thermostat connects to
LHS flap
Main rod spring (very important... if for some reason the thermostat fails the spring will force the flaps into the hot position.
Thermostat
pulley
cable
The little rods etc that connect the main rod to the flaps
The plastic bushes that the rod sits in.
Its not very hard to put it back together just alot of fiddling etc... I might have a few bits and peices that u need i will have a look if your
intrested. I think it would be a good idea to get this system working properly... in the long run you will end up saving.
good luck and i will post if i have any parts which may intrest you...
cheers
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Purple Martin
A.k.a.: Martin
Fahrvergnugen
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| posted on February 20th, 2006 at 09:24 PM |
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Thanks guys, your answers make a lot of sense. I know I need to get this working because in Canberra winters my oil temp NEVER gets up to normal and
I get "mayonnaise" under the oil cap... the low oil temps must be terrible for engine wear.
I didn't know about the main rod spring, that's a really useful bit of info, thanks. Did you mean to say I need the RHS flap, because the one in
the pic (above the oil cooler) is the one on the left side of the motor (but the right side of my pic).
1959 red & white Beetle
1975 Kombi camper
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his@hervw
Casual Dubber
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| posted on February 20th, 2006 at 09:35 PM |
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Does that flap sit on top of the oil cooler, if it does then the air acually comes out under the flap, as mine has a srew holding it down so it
doesn't close accidently?????
this was after a rebuild at bribie Is The pulley that the cable runs around is held on by a small screw,, mine went right through into the sump, but
sadly was left out when the flaps were taken off, oil pissed out every left hand corner. Have fun
Never Rushed
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76camper
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| posted on February 21st, 2006 at 06:47 AM |
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Yep, was talking bout orientation of the picture... What happens is you install your thermostat in the bracket on the side of the sump under the
pushrod tubes, run the cable over the pull up through a hole in the tinware and then on the main rod you clamp it down. You set it with the thermostat
closed and push the main rod to the closed position against the spring and tighten it up. Then when the thermostat heats up it opens and releases the
cable slowly. The spring pressure on the main rod pulls it open as the thermostat releases. Good idea to have this spring or there is no point in the
whole system and if you leave it off it is likely the rod will fall to the cold position and you wont be able to cool your engine at all.
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