The Portal Hub: All things Pinzgauer, Haflinger, Volvo 303 and more.

The Portal Hub: All things Pinzgauer, Haflinger, Volvo 303 and more.

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 Drive with one 712 wheel off the ground? 
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Joined: Wed Sep 22, 2010 3:32 pm
Posts: 13
Location: Reno, Nevada
Post Drive with one 712 wheel off the ground?
Friends,

Is there a way to drive a 712 with one of the four rear wheels off the ground?
Like using a come-along to winch the 1/2 shaft upward?

This would be an expedient way to survive a flat if you had run out of spares.

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Thanks,
MaxF

1973 712m Reno NV USA
"The difference between theory and practice is much greater in practice than it is in theory"


Last edited by Maxf on Wed Sep 24, 2014 3:21 pm, edited 1 time in total.



Wed Sep 24, 2014 12:47 pm
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Joined: Fri May 01, 2009 12:30 pm
Posts: 1588
Location: Detroit Motor City
Post Re: Drive with on 712 wheel off the ground?
Search for the red bull truck a few years back. A come along can be used to pull the axle up for towing. I would not plan to drive it.

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1973 712m
(2) 1968 Haflingers One For Sale
1979 Mini Cooper Ranger For Sale
1986 Corvette For Sale
2001 F250 Diesel and trailer
Current Company Cars
2016 Flex
2017 F-150


Wed Sep 24, 2014 12:58 pm
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Joined: Wed Feb 01, 2012 11:39 am
Posts: 2313
Location: Ontario, Canada
Post Re: Drive with on 712 wheel off the ground?
could you remove 1 rear wheel (say the middle one) and drive a 712?

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72 Pathfinder
75 710M 2.7i
96 350GDT Worker


Wed Sep 24, 2014 2:06 pm
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Joined: Wed Apr 14, 2004 9:58 pm
Posts: 1287
Location: Idyllwild, CA
Post Re: Drive with on 712 wheel off the ground?
Quote:
could you remove 1 rear wheel (say the middle one) and drive a 712?

I know that if you remove one wheel from the rear of a 712 the drum just barely clears the ground (obviously this depends on your tire size). I've used this method on a dynamometer during testing. I would not "drive" it this way -- a rock or bump could shatter the drum and/or damage the aluminum hub casting.

On the other hand, I once had a flat on the mid axle and did not realize it; I probably drove several miles before I was flagged down. It did not do the tire any good, but I probably could have driven much further (having at least the wheel on will protect the drum and hub from most damage). This event caused me to get a tire pressure monitoring system, tubeless tires, compressor and plug kit so I can repair most small punctures by realizing the tire pressure is dropping before the tire has been destroyed. Prevention is much easier than changing to the spare (assuming you have a spare to change).

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Jim M.
712W and 710M


Wed Sep 24, 2014 2:25 pm
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Joined: Wed Sep 22, 2010 3:32 pm
Posts: 13
Location: Reno, Nevada
Post Re: Drive with on 712 wheel off the ground?
I know it s crazy thought...But

Yes - that is exactly my question. Lift one off the ground and drive on the other three.

If you removed the wheel and lifted the hub "somehow" - maybe winched it up or something. Maybe it requires a special piece that bolts to the hub with a bearing on it so you can hook to the end of the hub and hold it up out of danger. Hold it up by the gunnel above?

I thought I saw this done in someones Africa travel log. But can't find the reference anymore.

[RedBull PInz search did not yield and good images]

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Thanks,
MaxF

1973 712m Reno NV USA
"The difference between theory and practice is much greater in practice than it is in theory"


Wed Sep 24, 2014 3:01 pm
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Joined: Sat Jan 17, 2015 11:41 am
Posts: 159
Location: UAE
Post Re: Drive with one 712 wheel off the ground?
I realise I am bumping a very old thread. :shock:

But if you really wanted to do this you could jack up one axle, and replace the standard 18" limit strap with a 'spare' 16" limit strap that you have bought just for this purpose.

Still I would prefer to drive with one flat and destroy a relatively cheap tire rather than a portal hub.


Tue Feb 10, 2015 12:24 pm
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Joined: Wed Sep 22, 2010 3:32 pm
Posts: 13
Location: Reno, Nevada
Post Re: Drive with one 712 wheel off the ground?
Good point - shredding the flat tire and destroying the wheel is a cheaper solution!

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Thanks,
MaxF

1973 712m Reno NV USA
"The difference between theory and practice is much greater in practice than it is in theory"


Tue Feb 10, 2015 12:34 pm
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