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Is that the one you says plugs into the cigarette lighter and draws 10A?

The picture shows crocodile clips, and the spec says 90A.
 

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Discussion Starter · #43 ·
18 to 30 psi on my 235/60/18 in about a minute or less , so allowing faff round time etc about 6 minutes to get all 4 back up to pressure.
Here's a link to my one.
wow, thats a beast, essentially two single piston 160 l/m compresors together.... no wonder its quick, but 90 amps....

look slike lighter ones peak out at 40 l/m , 10 amps,
 

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Anyone else get this when clicking on 2013GV’s link above:
Colorfulness Rectangle Software Font Technology
 

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Just pointing out - that is also not a 10A, cigarette lighter powered model like you said you had. Crocodile clip connections, and approx 30A - it's a generic Chinese product, available under half a dozen different labels.
 

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Just pointing out - that is also not a 10A, cigarette lighter powered model like you said you had. Crocodile clip connections, and approx 30A - it's a generic Chinese product, available under half a dozen different labels.
Mines got a cigarette lighter plug and draws just under 10A
 

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Discussion Starter · #51 ·
ok, silence in the class kids!

diff should be here next week, im still a bit in the datk regarding this part of the setting if i DIY the diff... how critical is to have the dumnmy pinion and special plate to set it?

Rectangle Font Slope Parallel Schematic
 

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ok, silence in the class kids!
There's actually a reason I choose to follow this up - setting expectation levels appropriately.

Cigarette lighter powered compressors are limited by the power available at the outlet - most are 120W, and a few allow 180W, which essentially means that the compressors are going to use the lower figure for a more widespread compatibility. 120W is approximately 1/6 hp, and a 1/6 hp compressor is going to struggle (and I do mean struggle) to inflate a 235/60R18 tire from 18 to 30 psi, it's not going to do it in under a minute, my best guess is around 10 minutes, and it could be a lot more than that, because some of the cigarette lighter powered compressors out there are really tiny.

I have several compressors, some are ac powered, some are 12V powered and at least two are cigarette lighter powered, the cigarette lighter powered ones are kept in the back of the car "just in case" - the most common usage is to top off the tires when the TPMS light comes on in the fall - adding an additional 3~5 psi per tire takes about 5 minutes, add the time to screw/unscrew the compressor, remove & replace valve caps and move from wheel to wheel, not less than 30 minutes or so.

One of the 12V compressors was purchased specifically for 4WD use, that one is a 72 l/min unit, with a 30A draw, so it cannot be used with a cigarette lighter, it's a "pop the hood, clip directly to the battery AND start the engine affair" (it pumps noticeably faster if the engine is running) and it cannot inflate my 235/70R16 tires from 12 to 26 psi in 5 minutes, to do that in under a minute would require me to use one of the bigger ac powered units AND let it run long enough to fill the tank.

Anyone who feels they can go out and buy a cigarette lighter powered compressor to air up their tires after airing down off road is in for a rude awakening, and anyone who suggests it's possible is, in my opinion, being misleading, so, if anyone says they have a cigarette lighter powered unit that can do all four wheels in around 6 minutes, I want to see it, I want to get me a couple of those, if they actually do exist.
 

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Discussion Starter · #53 ·

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Crush sleeve or shims are relatively similar in operation, just different ways of achieving the same thing. Critical thing is drive pattern and pre load. If transferring crownwheel and pinion to another housing make sure you determine the drive mesh patten before disassembly otherwise its going yo be noisy in the new housing if you doing get it exactly matched.
Preload can be set with a spring scale and a bit if string, I have even done them with weighted containers and a string wrapped around the drive flange.
 

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Discussion Starter · #55 · (Edited)
sure, its just that for the crush tube id need a new one as well as other adavantage according to LOROR
Why choose a pinion spacer over a crush sleeve?

  • It takes between three and four hundred ft. lbs. of torque to crush a crush sleeve. For some with limited tooling, this can be impossible to achieve. Because solid spacer preload is set by adding shims, installation does not require such high torque.
  • Crush sleeves are known to continue to collapse over time. This means that the preload setting on the pinion shaft can change and need adjusting. In addition, if you run your pinion flange into a rock you will likely further crush your sleeve. In contrast, solid spacers never shift in length and will not loosen over time.
  • Crush sleeves cannot be reused. If you have to rebuild again in the future or if your installation does not go well the first time and you have to tear it down again, you can reuse your solid spacer again and again.
  • With a solid spacer, you can change a leaking pinion seal without needing to reset the crush sleeve.

In Short: Solid spacers reduce the risk of overtightening your pinion nut while ensuring a reliably stable pinion load.




found the shims i need here in case it helps anybody
https://www.ebay.co.uk/itm/224326415431?_trkparms=ispr%3D1&hash=item343ae57447:g:bmUAAOSwZtxgX8er&amdata=enc%3AAQAGAAACkPYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSvtkx670Z0mbyfWqmxLFLYVCbt%252F2A%252BW44sS1pp6LjThxXlSDaw%252BE%252Bk9YTGlmVWiAO3Uf1hDIgLvymbp%252BNhCIszw0W0%252F%252F0gb2YLfcAdC3Jnzh%252B3Xes09n7YmQlJInF0Q%252B3BU24DWbnq8G21l1YHaF7Hgl3xLKa5yGJ9ea4t5c1oISjPUwtmS4APWDoOy8hDPugEEjpRB6HveZw8q8nbPkLMidwdl35IHLDwuDJzwt5iRLGFdwFsy9exbKree8vkT2QoPQoK5YKAnC2JqwxLJtCTx%252FNcgWpnHgLhgV96TFy%252FEJSIQX0DaIzwoRyyrlwAFffa8LQuOyx6mjIR0rgqvLRFWJh22ERvCsiFGpPQiZ%252BBmTN8EqSPyr4E1YyNxMeoxpiqoHCPEsZIDOcrVra3BtkQa2iCP6R75Agh%252B61VY1GpHOlF8sX%252Fo1I%252BdJgIqXVh5Gy3vRoSt7cTvQE8HRo9Hu%252BJ5b%252FIKtNWhlGynaglA31hbiwJO2kG5pJ492xnH27nRD3z%252Bv17FTwJQQnYjWRHyBNqBJ5ZkdrDNWMTEdCGF7WHHSGE7G9SuGH9KOFVVr4LKPDwX9drkk24Gmh1fz6XYqwOu0CTu%252FPo9dg5zlwFgSSY%252FNIinflm6qJkBLtbuYA9rYsJ7oDXk6FP2vHnWw0iCZ%252B06ySu0rIeRWw90FyoUdZsMfNIV%252FsqAf3y6pld2hIVX%252B0n%252FacG6xjZXxErian7Se%252B5ylpJHD%252FDYduaMOzBzLbyajZvr407SdoKPHfWwvd0fwDTcgCNOvprCTvVYam%252FEJLQx5hPzvNhy10KHPCaSTl9AohlGk6qv6ll6cDrrXhH6x4%7Cclp%3A2334524%7Ctkp%3ABFBM7On1nqhf
 

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