High Altitude Carb's ??

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milesdzyn
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High Altitude Carb's ??

Post by milesdzyn »

Was cleaning out my spare set of carbs and noticed some minor differences to the stock Swiss Army carb's.

The internal choke plate disc has considerably smaller holes.
Also the throttle adjust arm and screw is located higher.
All these parts are shown in the Parts Catalog but indicated as not for this model (Meaning, not Swiss Army)
Image

One small difference intside the carb base, behind the fuel cutoff solenoids, there are 4 small holes instead of the 2 on the standard carbs. As represented in the Parts cataloge as Y version.

The front reads PU, but it did have what was left of the light red model tag. This apears to be High altitude carbs due to the restricted air holes in the choke plate.
Image

These were jetted with high altitude jets.

Anyone know for sure what I got.

Miles
Lots of Pinz pictures here.......
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'73 Pinzgauer 712M
Jim LaGuardia
United States of America
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Post by Jim LaGuardia »

It's a newer version, I find them a lot on 75 and newer Pinzgauers.
Also of note, 712 carbs are jetted different than 710 carbs due to increased load capacity.(jet sizes are in general specs)
Cheers, Jim LaGuardia
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"Arch Magus of Machines."
milesdzyn
Posts: 550
Joined: Wed Mar 09, 2005 2:32 am
Location: Las Vegas, NV
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Post by milesdzyn »

Thanks Jim, The size of the holes on the choke plate made me wonder if it was for the pinz or not.

This set of carbs has:
125 Main Jet
170 Air Correction
55 Idle Jet
110 Idle Air Jet
80 Pump Jet

I live in las Vegas, elevation about 2100 ft.

I can switch out the jets from my other carbs (bases being rebushed):
140 Main Jet
230 Air Correction
60 Idle Jet
130 Idle Air Jet
80 Pump Jet

Miles
Lots of Pinz pictures here.......
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'73 Pinzgauer 712M
Profpinz
Australia
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Post by Profpinz »

Nice job on cleaning up the carby bodies Miles.
Did you "Scotchbite" them ?

I've just got an old body in the glass bead blaster but I think I'd prefer a less matt finish.....I'm thinking of trying walnut husks or something equivalent maybe.
Peter

1974, 712 6X6 Pinzgauer
1983, 710-1.6 4X4 Pinzgauer
1997, 718 6X6 Pinzgauer (in pieces)
1971, 700 Haflinger
1974, 703 LWB Haflinger
2001, Range Rover

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milesdzyn
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Post by milesdzyn »

Profpinz....Thanks, they were covered in a thick layer of oil and dirt when I got them, but for $100.00 I was happy to put a few days into cleaning them up and rebuilding them. The shafts are tight and included the 4 shutoff valves.

I let them soak over night in carb dip, and then soaked in a cleaning degreaser for 24 hrs, cleaned with a brush and a fine steel wool pad. Finally to make sure all the cleaner and solvent were removed they were immersed in a sonic cleaner filled with hot water and cleaning solution. Flushed with clear water in the sonic cleaner and blown out with air.

Miles
Lots of Pinz pictures here.......
http://picasaweb.google.com/pinzgauer.depository.1

'73 Pinzgauer 712M
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