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Official Upright fan shroud thread
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AlteWagen
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PostPosted: Thu Dec 15, 2011 3:55 pm    Post subject: Official Upright fan shroud thread Reply with quote

WORK IN PROGRESS!!! PICS ADDED AS FOUND. If you have better pics please post.

25hp shroud
seamed at top of shroud

KDF shroud
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1946/1947
Manual lever for "summer/winter"

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Listed from PR

1947 Cooling air throttle ring
previously slide

March 1949 Now without throttle ring

May 1950 Automatic cooling air regulation
previously throttle ring with swing handle

December 1951 Throttle ring spot welded
previously screw mounted

September 1952 Throttle ring support guide projected for operating shaft
previously recessed

Oct 1953 Fan blade increased to 1.5mm thick
previously 1.25


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36 hp shroud

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Throttle control ring and thermostat

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Aug 1959 Fan bore diameter increased to 28mm
previously 20mm

Nov 1960 Fan now has 28 blades with 20mm bore diameter
previously 16 blades 28mm bore diameter



40hp stale air shroud

Transitional?
Note holes for plug wires and choke

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May 1961 Throttle ring rubber stop now increased to 8-9mm
preciously flat



1961-1962
Note cutout for air cleaner no choke hole

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July 1962- December 1962
Non fresh air with larger housing

PR lists
Fan housing/fan
Now: Modified shape increased
cooling air throughput

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63-70 fresh air shroud
Uses upright oil cooler

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April 1964 Cooling flaps replace throttle ring
August 1964 Cooling flaps replace throttle ring (Type II)



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71-74 dog house shroud
Type I used a large negative oil cooler slot
Type II used a large positive oil cooler slot similar to a thing shroud (1971 only)
2 piece oil cooler exhaust ducting

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All important hoover bit bolted to oil cooler to seal shroud and direct air through cooler

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Thermostat flap rod changed due to dog house addition

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Doghouse shroud with modified fresh air outlet for use with A/C

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Different left side A/C fresh air outlet

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73 thing shroud
One year only for export
Non fresh air heat
Uses large positive oil cooler slot

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Early FI shroud
Large neagative slot
Velosity ring on back

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Late FI shroud
Small peanut oil cooler slot


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Puma shroud
Low profile
Non fresh air heat
Large negative oil slot
Both upright and doghouse versions available
Doghouse type has enclosed oil cooler with round exhaust outlet with matching front tin

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Brazilia shroud
Low profile
Fresh air heat
Large negative oil slot
Both upright and doghouse versions available
Doghouse type has enclosed oil cooler with round exhaust outlet with matching front tin



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Last edited by AlteWagen on Fri Jan 06, 2012 1:55 pm; edited 14 times in total
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torsionbar
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PostPosted: Thu Dec 15, 2011 4:18 pm    Post subject: Reply with quote

excellent, nice work!
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KopfenJager
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PostPosted: Thu Dec 15, 2011 4:50 pm    Post subject: Reply with quote

And I wast just going to take a pic and post, asking what shroud do I have, but I see it is a 1963 Type II 1500
Non fresh air with larger housing . Sweet. Soon off to Don's powder coating.
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borninabus
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PostPosted: Thu Dec 15, 2011 5:09 pm    Post subject: Re: Official Upright fan shroud thread Reply with quote

derluftwagen wrote:
71-74 dog house shroud
Image may have been reduced in size. Click image to view fullscreen.



that is a late model FI fan shroud.
note the venturi ring, coil & throttle cable location Wink
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fivelugshortaxle
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PostPosted: Thu Dec 15, 2011 5:11 pm    Post subject: Reply with quote

Very cool thread.....
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danielsan
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PostPosted: Thu Dec 15, 2011 5:15 pm    Post subject: Reply with quote

Nice thread.

Puma shroud cooling flap linkage and puma shroud return spring. (German spring shown so you can compare)

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KopfenJager
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PostPosted: Thu Dec 15, 2011 6:03 pm    Post subject: Flaps? Reply with quote

Does anybod know if a 1963 Type II 1500 Non fresh air with larger housing originaly come with flaps and a thermostat? The one I scrounged out of a scrap pile doesn't have them on it.
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66brm
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PostPosted: Thu Dec 15, 2011 6:17 pm    Post subject: Reply with quote

Thermostat yes, flaps no, they use the control ring
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jl_1303
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PostPosted: Thu Dec 15, 2011 6:29 pm    Post subject: Reply with quote

Out of interest, does anyone know if these seals are still available anywhere?

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KopfenJager
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PostPosted: Thu Dec 15, 2011 7:02 pm    Post subject: Reply with quote

Ok, where do I get the ring and thermo?
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danielsan
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PostPosted: Thu Dec 15, 2011 7:47 pm    Post subject: Reply with quote

Brasilia shroud:

Tube for charcoal chamber. Uses the German style exhaust. No Kadron linkage slot. Fresh air tubes do not have an indentation that allows the Kadrons the clear the tubes.

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Photo of the stock puma with the provisions for the fuel lines and the Kadron linkage attached:

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SRP1
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PostPosted: Thu Dec 15, 2011 7:58 pm    Post subject: Reply with quote

jl_1303 wrote:
Out of interest, does anyone know if these seals are still available anywhere?

Image may have been reduced in size. Click image to view fullscreen.


The two metal pieces CB Performance has, and they come with the rubber
seals. I would bet they have the rubber pieces available seperatly too.
http://www.cbperformance.com/catalog.asp?ProductID=274

The soft seals are nothing more than foam weather stripping availble at
you local hardware store, home depot, etc...
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Almost Alive
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PostPosted: Fri Dec 16, 2011 12:23 am    Post subject: Reply with quote

WOW! Long overdue my friend. I LOVE this post.
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74 Thing
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PostPosted: Fri Dec 16, 2011 12:34 am    Post subject: Reply with quote

Can you clarify with maybe an explanation or close up photo between the difference of a positve vs negative oil cooler slot?

Thanks
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nextgen
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PostPosted: Fri Dec 16, 2011 8:03 am    Post subject: Reply with quote

What fantastic amount of information.

I vote his post be a permanent information listing.

Excellent.

I like the Venturi Ring, ha!!!!
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Glenn Premium Member
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PostPosted: Fri Dec 16, 2011 8:06 am    Post subject: Reply with quote

nextgen wrote:
What fantastic amount of information.

I vote his post be a permanent information listing.

Excellent.

I like the Venturi Ring, ha!!!!

Added to the FAQS/Sticky.

Now if only people would look at it before posting Wink
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Almost Alive
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PostPosted: Fri Dec 16, 2011 9:37 am    Post subject: Reply with quote

Glenn wrote:
nextgen wrote:
What fantastic amount of information.

I vote his post be a permanent information listing.

Excellent.

I like the Venturi Ring, ha!!!!

Added to the FAQS/Sticky.

Now if only people would look at it before posting Wink


Well deserved.
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AlteWagen
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PostPosted: Fri Dec 16, 2011 12:39 pm    Post subject: Re: Official Upright fan shroud thread Reply with quote

borninabus wrote:
derluftwagen wrote:
71-74 dog house shroud
Image may have been reduced in size. Click image to view fullscreen.



that is a late model FI fan shroud.
note the venturi ring, coil & throttle cable location Wink


Fixed! Very Happy
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AlteWagen
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PostPosted: Fri Dec 16, 2011 12:43 pm    Post subject: Reply with quote

74 Thing wrote:
Can you clarify with maybe an explanation or close up photo between the difference of a positve vs negative oil cooler slot?

Thanks


Negative oil slot (inverted scoop)

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Positive oil slot (scoop)

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Joost
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PostPosted: Fri Dec 16, 2011 1:47 pm    Post subject: Reply with quote

Wich is better the late or early FI shroud?
The early shroud looks to be better due to the large slot,
But there must be a reason why they changed right?

I have got two late FI shrouds and one normal doghouse shroud with large negative slot, can i remove the venturi and weld it too the normal shroud as too have better cooling?
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