floor jack etiquette

[lakeside]

I am removing all tires for powder coating. Can I lift the car with a floor jack at the pumpkin and set the jack stands on the axle or should I lift each side of the axle separately? The car will be on the stands for a month.Thanks.

[J Franklin]

You can lift in the center if you want.

[V4F]

lift it & put it on stands . I do it all the time with no problems . just be sure you have it where you want it !

[Rowdy]

And yes it is OK to cuss while jacking. No need to be polite to a jack. Rod

[lakeside]

Thanks everyone.

[Tony Stein]

Sponsored Links (Register now to hide all advertisements)

Can you share some details of your powder coating project. Preparation? Color? Cost?

[Patrick L.]

I was taught to not jack on the pumpkin. So, I don't.

But, when it comes to proper etiquette, I ask the jack if I can please use it and then thank it for its time when done.

[katy]

Can I lift the car with a floor jack at the pumpkin

Why not?

[Mark W.]

Coming over from the Model T side of the hobby I do not jack up the pumpkin - if you look at the weight distribution the springs place all the weight of the car near the wheels - jacking in the center makes the leverage of the length between the jack point and the spring connection fight against the height of the bolt pattern on the differential (roughly 3:1 or 4:1 on each side guestimate) and is known to elongate the bolts on the top side causing oil leaks - and if done to the heavier bodies like a T Fordor can actually bend the axle tube due to the body weight.

Just me, but its not worth the 5 minutes savings

[jim galli]

The frost is on the pumpkins. OK to jack at the banjo ;~'))

[J Franklin]

I might not lift a T that way but a Model A rear is much more rigid, and the weight should be less than 1000 Lbs.

[lakeside]

Reply to #6 T. Stein....After checking with several P.C. shops I discovered that they all have what's called a RAL# specific to the industry and limited in colors. Eventually I ended up at a place called Model A Wheel Colors .com.They were initially difficult to reach and there were a number of threads about their business on this site.. I did order from them since, I believe, they do have the correct custom colors for the Model A.
The prep I left to the powdercoater after a lot of questions. I chose Tacoma Creme. The cost was $100.00 a wheel on average + or -.Since I had my own powder,the cost was a bit less. At some point you have to trust someone.

[mshmodela]

It seems to me if you're lifting by the rear axel, from a single point from the differential or by two lift points equally spaced from the differential, the force upon the differential would be the same





You'd need to not lift by the axel/differential altogether to avoid it..

[richsfords]

Just got mine done this week 5 -19 inch vermillion red for $425. took about one week with a local in New Bern. great job also very pleased. installed 5 new wheels from Croker shipped in less than a week, I am a happy A modeler. in time for the upcoming Christmas Parade. really sets off my black 31 Slant window 4 door. I had it up on stands for 3 weeks just as everybody describe, jack in the middle and set to the outside. great group.

[28Ca8149]

I live in Alberta CA and my friend got six wheels powder coated for $300 Tacoma creme And a good job done

[BRENT in 10-uh-C]

Originally Posted by mshmodela

It seems to me if you're lifting by the rear axel, from a single point from the differential or by two lift points equally spaced from the differential, the force upon the differential would be the same


You'd need to not lift by the axel/differential altogether to avoid it..

What you are missing is the leverage ratio.

The deal about a Model-T rear axle bending was some nonsense started WAY back some 20+ years ago on the old MTFCI forum where someone argued they would bend if jacked up in the center. Someone finally put a dial indicator onto the housing and jacked their Center-door up and there was something like .010" deflection which others argued that could have been movement from loose rivets in the tubes. No bending or movement happened to the axle tubes themselves. Ironically, when the vehicle was taken off the jack, the indicator returned to .000, so there was no apparent damage done by jacking from the differential housing. In the end, it was a stalemate simply because folks were only going to believe what seems believable to them. For those of us who have straightened T axle housings in a lathe can attest how strong they are!

The bottom line is, there is MUCH more weight transmitted to the differential housing through driving as the wheels/tires are constantly pushing/pulling the outside of the housing forward & backward while the differential housing is what is pushing/pulling the entire vehicle. This movement is even exacerbated because most Model-Ts do not have the radius rods correctly adjusted (tensioned).

[lakeside]

Question #14 and #15. Did either of you balance your wheels? Any problems mounting,ie, scratches,etc.?

[DougVieyra]

LakeSide , post #1: "I am removing all tires for powder coating."
___________________________________

Powder coating tires is something I have not heard of. How well does the powder adhere to the rubber of the tire ?

[Fullraceflathead]

The load put on the axle center is way higher than the load placed on the center from a jack/vehicle weight.
The engine has 128lbs of torque multiplied by the transmission first gear ratio then multiplied by the rear end gear ratio. At least 1450 lbs torque with 3.0 1st then 3.78 rear gears.

[lakeside]

#18. Reply. I reread my thread and you are correct. I really did say that! It would be pointless to P.C. the tires. I should have said wheels.