Type4 Thermostat

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luftvagon
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Location: Little Rock, AR
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Type4 Thermostat

Post by luftvagon » Thu Jun 05, 2014 1:30 pm

Colin noticed my type4 thermostat leaked, and failed open, leaving the engine fan blowing cold air non-stop. That's not such a bad thing in summer, but in winter, you get way too much cooling... So here is my proposal to the alternative...

Image

I can control this either through my ECU or through an alternative temperature probe.
You energize it, the arm raises, and it pulls up down on the flap, closing the flap. Key off, power off, or failure, and the arm lowers, instantly failing the cooling open....

Who's in?

:thumbleft:
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

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Mike Boell
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Re: Type4 Thermostat

Post by Mike Boell » Thu Jun 05, 2014 1:35 pm

The first problem I see is, "Made in China"
Mike Boell
1975 FI Westy
Oregon City

SOME PEOPLE ARE LIKE SLINKIES - NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN THEY'RE PUSHED DOWN THE STAIRS.

luftvagon
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Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Thu Jun 05, 2014 1:35 pm

Another alternative is vacuum actuator. Which is also interesting idea, since I have available vacuum up to 120F, at which point, I close off the vacuum (fast-idle circuit/or AAR in stock lingo)

Image
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

luftvagon
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Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Thu Jun 05, 2014 1:36 pm

Mike Boell wrote:The first problem I see is, "Made in China"
Don't worry.. That's a Cadillac part. =D>
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

luftvagon
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Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Thu Jun 05, 2014 2:05 pm

This just turns me on... :)
Image
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

luftvagon
Old School!
Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Thu Jun 05, 2014 2:08 pm

I am thinking about using these on my heater boxes too... ;)
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

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Amskeptic
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Re: Type4 Thermostat

Post by Amskeptic » Thu Jun 05, 2014 9:35 pm

I say either liquid/gas pressure or mechanically or electrically-actuated with fail-safe open. That's what I say.
Vacuum actuated, naaaah.
I think we need a nice progressive action too, not on or off. Let's be kind to our air-cooled engines and actually control temperatures for best metallurgical clamping of the case/cylinders/heads, and what the hell, let's keep the heat on for better control of rapid temperature changes which have got to annoy the cylinder heads. If we have a responsive and robust system, we could actually even out the heat production from the exchangers by closing off the cooling system on long downhills. We could get rid of the cable and that silly wheel all together, just drive the cross shaft with a torquey little step motor off a Lexus . . . :cyclopsani:
Looking good here in the Star Wars Fleet Maintenance Facility.
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

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hambone
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Location: Portland, Ore.
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Re: Type4 Thermostat

Post by hambone » Thu Jun 05, 2014 9:54 pm

Nothing cooler than a copper accordion full of alcohol. Wires, everything's got wires coming offit nowadays...
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
it balances on your head just like a mattress balances on a bottle of wine
your brand new leopard skin pillbox hat

Jivermo
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Re: Type4 Thermostat

Post by Jivermo » Fri Jun 06, 2014 7:06 am

Image

How about this guy's offering? I need one, and this is what I was going to order. Anyone using one of his...I know I saw some write up somewhere here about this?

Psucamper
Getting Hooked!
Location: Boalsburg PA
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Re: Type4 Thermostat

Post by Psucamper » Fri Jun 06, 2014 7:18 am

If you have a good Type 1 thermostat there is procedure to adapt it to the T4 engine.
Think it's on Ratwell but not sure. I mention it because these things are pricey. Bob

luftvagon
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Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Fri Jun 06, 2014 7:41 am

Just priced the thermocoupler probe, and stepper motor controller, cpu and etc.. it comes to about $100 with the cpu:

Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade) - v2.0 PID: 269 - $14.95
Thermocouple Type-K Glass Braid Insulated - K PID: 270 - $9.95
Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA PID: 324 - $14.00
Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.0 PID: 1438 - $19.95

+ Arduino board and miscellaneous wires, and project boxes == $100..
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

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Bleyseng
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Re: Type4 Thermostat

Post by Bleyseng » Fri Jun 06, 2014 7:53 am

A good used type 4 one cost me $40 6 months ago..... Very low tech but no wires yo short out.
Geoff
77 Sage Green Westy- CS 2.0L-160,000 miles
70 Ghia vert, black, stock 1600SP,- 139,000 miles,
76 914 2.1L-Nepal Orange- 160,000+ miles
http://bleysengaway.blogspot.com/

luftvagon
Old School!
Location: Little Rock, AR
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Re: Type4 Thermostat

Post by luftvagon » Fri Jun 06, 2014 7:56 am

The busdepot Type4 themorstat (111119159A) only lasted 6000 miles... and it was $99. Stay away from it.
1981 Volkswagen Vanagon Westfalia - air-cooled Type4 1970cc CV (hydraulic lifters, 42x36 valves, stock cam, microSquirt FI with wasted spark ignition)
1993 Ford F-250 XL LWB Extended Cab 7.3L IDI

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Amskeptic
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Re: Type4 Thermostat

Post by Amskeptic » Fri Jun 13, 2014 7:56 am

luftvagon wrote:The busdepot Type4 themorstat (111119159A) only lasted 6000 miles... and it was $99. Stay away from it.
I am following your research here, please ask questions as necessary. We need a good location to read engine temperatures . . . it needs to respond accurately.
Colin =D>
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

72Hardtop
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Location: Seattle, WA./HB. Ca./Shizuoka, Japan
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Re: Type4 Thermostat

Post by 72Hardtop » Sat Jun 14, 2014 10:17 am

Jivermo wrote:Image

How about this guy's offering? I need one, and this is what I was going to order. Anyone using one of his...I know I saw some write up somewhere here about this?

I'm running one of his thermostats and they are very well made. He makes them using updated material that resists the expanding & contracting better overtime vs the OE T-stats. A highly recommended item and quite likely the last T-stat one will have to purchase.
1972 Westy tintop
2056cc T-4 - 7.8:1 CR
Weber 40mm Duals - 47.5idles, 125mains, F11 tubes, 190 Air corr., 28mm Vents
96mm AA Biral P/C's w/Hastings rings
42x36mm Heads (AMC- Headflow Masters) w/Porsche swivel adjusters
71mm Stroke
Web Cam 73 w/matched Web lifters
S&S 4-1 exhaust w/Walker 17862 quiet-pack
Pertronix SVDA w/Pertronix module & Flamethrower 40K coil (7* initial 28* total @3200+)
NGK BP6ET plugs
002 3 rib trans
Hankook 185R14's

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