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How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 2:46 am
by JNijst
Gents,

I want to powder-coat my wheels, but I am not sure where exactly to put the support (2 x 3 ton-supports). I can obviously only do two wheels at the time if I don't want my Pinz to fall over, so I am planning for that. Preferably I would like to do the sides first (right-side or left-side), as that is easier in my rather narrow garage, but I could also jack-up the end or the front. I think jacking up the front or back would be more stable...
Any idea what would be the best place to put these supports ? I thought where the steel plate between the differential-box and the rest fans out to the body support. (Just behind the hand)

Thanks in advance for your thoughts !

Best regards,

Jules

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 4:08 am
by Profpinz
I lift the whole front or rear (all 4 wheels on my 712) by placing a garage trolley jack with a suitable piece of wood under the front or rear diff casing. The casing are very thick on the bottom (and top....same part), so providing the check straps are intact all will be fine.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 6:59 am
by undysworld
Ditto. For the rear of a 712, I have an 8"x8" wooden beam, maybe 4' long, that supports both diffs. with a floor jack under it. You can either lift front or rears, and the opposite end will provide stability while one end is off the ground.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 12:42 pm
by Jimm391730
I've lifted the front diff and put jack stands under the ends of the axles (in the area where you would normally jack each wheel), then lowered the front onto the jack stands. Then you can lift the rear diff and have all six wheels off the ground. It is not terribly stable like this (don't go climbing in and out) but you can also put TALL jackstands under the spring pivots on each side between the rear wheels for more stability.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 8:13 pm
by oilcan
curious what you plan to do with the lug nuts? put them on and spray them? just leave them naked?

thanks

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sat Feb 13, 2016 8:46 pm
by TechMOGogy
oilcan wrote:curious what you plan to do with the lug nuts? put them on and spray them? just leave them naked?

thanks
You could also zinc plate them so they look bare but won't rust!

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sun Feb 14, 2016 1:37 am
by Brickren
Are there any benefits to getting the rims zinc plated? How about anodized? Would either of these processes damage or wear off? Is it even practical?





“There's no way to rule innocent men. The only power any government has is the power to crack down on criminals. Well, when there aren't enough criminals, one makes them. One declares so many things to be a crime that it becomes impossible for men to live without breaking laws.” --Ayn Rand

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sun Feb 14, 2016 1:08 pm
by Haf-e
I had my rims hot dipped galvanized and like the look - this was done about 10 years ago and they look the same today and when they were done. They fit the look of a military / utility vehicle.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sun Feb 14, 2016 2:27 pm
by Jimm391730
...benefits to getting the rims zinc plated? How about anodized?
The rims are steel; anodizing is only for aluminum. Since steel rusts, zinc is added (plated on the steel) and it is, through chemistry, going to be consumed first. But zinc doesn't rust, so you don't really see it being used up. The steel won't rust or oxidize until virtually all the zinc is gone. The zinc is not a paint, it will protect the steel even at some distance even if the steel is exposed (perhaps an inch or so). You can purchase "Cold Galvanizing Compound" which is a zinc filled paint, and it works very well in my opinion; Galvanizing is the term used for zinc plated onto the steel.

Powdercoating, like paint, is just a covering to prevent oxygen from reaching the steel to form rust. This works well until a chip or crack develops that allows holes in the covering, then rust will start, possibly neatly hidden under the coating. Galvanizing, on the other hand, completely stops rust even if small sections of steel are laid bare. Galvanizing can be redone when necessary. Since galvanizing is an additional coating of zinc, it is not likely to be as smooth and pretty as paint or powdercoating would be, but it is probably the best protection against rust that you could do for your rims.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Sun Feb 14, 2016 4:35 pm
by GadgetPhreak
Haf-e wrote:I had my rims hot dipped galvanized and like the look - this was done about 10 years ago and they look the same today and when they were done. They fit the look of a military / utility vehicle.
Do you have any pics? I'm curious to see what they look like.


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Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Mon Feb 15, 2016 1:26 am
by Haf-e
They look light gray... the pictures I sent to you with the aluminum top had them... I'll try to get some more recent pics of the ones on the truck and the 2nd spare rim which I've never used side-by-side to show how they have weathered.

There are several places in the Seattle area that accept small batches of automotive parts for galvanizing - I think there is a 100 lb (part weight) minimum charge or something. The parts need to be sandblasted first to remove all of the paint but surface rust isn't an issue - at one place they batch up all of the work outdoors in the rain even. Nice to not have to worry about that (like you do with powdercoating) especially here in the rainy PNW where raw metal starts to rust quickly. There is a new place up in the Arlington area - the other places I have used are in Ballard and one down by the airport.

I haven't had any problems with beads on the tires sealing - but I have heard of others saying that can be an issue - I've done it on about 3 vehicles different vehicles.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Mon Feb 15, 2016 1:42 am
by Haf-e
Here you go... This is the spare rim that has been stored outdoors and has some dirt / sawdust on it.

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Mon Feb 15, 2016 9:29 am
by GadgetPhreak
Thanks, I've seen that finish before and didn't know what it was. They look great.


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Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Mon Feb 15, 2016 9:45 am
by TechMOGogy
Not to totally derail this thread but...
Half-e your truck has some cool features beyond the galv rims!
Rerouted exhaust with spark arrestor is interesting as are the top wooden rails - is that a comfort thing?
Extra jerry can mounts etc
Hard top you have posted before.
Would be cool if you posted info about your truck and your mods (new thread?)
Cheers,
Dan

Re: How to jack up a 712M when I want to remove 2 tires ?

Posted: Mon Feb 15, 2016 6:24 pm
by Brickren
I am glad you pointed those things out on his.Pinz. I would have missed the top rail and the spark arrestor. Nice..