Outer Limits 4x4 Board

looks tight has anyone ever done this... ie turning crownwheel down???

REV_310 wrote:ie turning crownwheel down???

As in machining some meat off the outside circumference of the crownwheel? I don't think that's a good idea as the whole tooth gives support to the contact area. When gears fail, it's often the whole tooth that breaks off. Add to that the amoount of heat that would be introduced during machining and you would have to have it heat treated and tempered again. Any increase in ground clearance would be offset by the smaller diameter tyres you would need to run to avoid breakage to the gear.

Toyota pumpkins can often gain 10-12mm from shaving and plating them but I'm not sure about Patrols. I thought the rear pumpkins came shaved?

mayb's gu rear h260 bur its massive anyway. i thought this couldn't be done

REV_310 wrote:i thought this couldn't be done

Then why did you ask?

Confirmation. And it can but wouldn't be worth the loss in strength

REV_310 wrote:Confirmation. And it can but wouldn't be worth the loss in strength

wrong! its well worth the effort and the strength should be no different it done correctly.

1MadEngineer wrote:

REV_310 wrote:Confirmation. And it can but wouldn't be worth the loss in strength

wrong! its well worth the effort and the strength should be no different it done correctly.

i think he was talking about machining the crownwheel in the original post, not shaving the pumpkin. I didn't get a reply as to what he was talking about.

Wicked that looks sex as. How much did you take off. Keen as mustard to hear more. How long has it been this way how much does it cop.

How much off the crownwheel and housing did you take.

REV_310 wrote:Wicked that looks sex as. How much did you take off. Keen as mustard to hear more. How long has it been this way how much does it cop.

How much off the crownwheel and housing did you take.

Heaps, haven't measured that. The numbers are on my build thread, search for ShortyMQ.
We cut a big hole, welded some thick as plate over it, heated it and belted it out with a hammer till the centre wasn't rubbing any more.

Um awhile... It's done 2 tuff trucks, a few other comps, social wheeling...

It's a Stock H260 crown wheel, no matching just a shave housing. I have more clearance with shaved H260 than I did with the stock H233. Rotating it helped a lot there.

Edit - http://www.outerlimits4x4.com/viewtopic ... &start=120" onclick="window.open(this.href);return false;

So you didn't alter the crownwheel

REV_310 wrote:So you didn't alter the crownwheel

No

any done it to a h233? How much can you get out of it?

joshy wrote:any done it to a h233? How much can you get out of it?

15-18mm

thanks. Im assuming u can get the same out of it wether its front or rear?

Have done this before to h233 we gained just over 20mm on the back and the front just under 20mm..
it is a big difference as far as diff clearance is concerned you pretty much gain a tyre size..