Centrelock Wheels on Road Cars

[duncs500]

I’m pretty sure they are aloominum - which is probably why no-duggety, no doubt.

Bravo.

Hes been at the big book of dad jokes again. Do not encourage...

Love a dad joke.

[integrale_evo]

Meh, people pay lots of money for all sorts of pointless things on road cars. I bet most never get anywhere near the limits of their huge sticky tyres, add ceramic brakes because the salesman talks them into it or pay thousands extra for certain paint colours or to have glorified stickers on the wings of their Ferrari.

F40s have centrelocks, mclaren F1s have centrelocks, btcc and dtm cars have centrelocks, f1 cars have centrelocks. I like them even though they’re silly.

You could buy centrelocks for various Alfas as a dealer accessory in the 90s, came close to buying a few sets even though they’re not the nicest of designs

[GG.]

Tut tut - this isn't complying with the instructions...

[Mito Man]

Car is worthless now, that’s the chassis bent.

[integrale_evo]

I looked into getting one of those torque wrenches.

Pretty sure I decided it wouldn’t physically fit in the boot of an e36

[GG.]

Yes I don't think there is anywhere you could secrete that inside of a 911. Roof rack it is

[jamcg]

Yes I don't think there is anywhere you could secrete that inside of a 911. Roof rack it is

You’ve got the 4 wheel drive version- Zip tie it to the driveshaft under the car, You’re welcome

[GG.]

Yes I don't think there is anywhere you could secrete that inside of a 911. Roof rack it is

You’ve got the 4 wheel drive version- Zip tie it to the driveshaft under the car, You’re welcome

I do have quite an odd situation at the moment where among three vehicles we have two four wheel drives and two rear engined cars only one of which is an SUV and one a 911.

[Mito Man]

Does the torque wrench fold in half or is that an illusion of the camera?

[integrale_evo]

It’s a break back design, some of the bigger ones can als be split for storage

[V8Granite]

Also why is he using what would be a 1200nm torque wrench for something far lower.

Dave!

[mik]

Was at the Lotus Specialist yesterday. 992 GTS Targa4 sitting outside - on centrelocks obvs.

Mobile tyre fitter arrives to repair a puncture. Brings out the appropriate Porsche socket, plus a 1m long breaker bar (with a chunky 3/4" drive).

Heave!

Non.

HEAVE!

Non.

Comes into specialists. Can't dugga-dugga them obvs. Borrows additional approx 1.6m scaffold pole to slip over the end of his bar.

HEAVE!

Non.

HEEEEEEAAAAAAAVE

And it was free...... What a faff.

This car had the same (ie normal thread) nuts on each side. Not handed.

[V8Granite]

People don’t know how to heave on things. We have some small guys at work who can torque up everything I do up to 1400 on our flywheel bolt studs.

Don’t rely on your arms, your grip is weak most of the time, people have shoulders, legs, no end of things but they heave on a bar and round their shoulders. It’s stupid.

It’s like they never did a manual handling course on picking a cardboard box up

Dave!

[Mito Man]

Bunch of snowflakes. I can torque my nut with just my thumb and forefinger.

[Zonda_]

F40 had them therefore they are the height of correctness.

[nuttinnew]

I looked into getting one of those torque wrenches.

Pretty sure I decided it wouldn’t physically fit in the boot of an e36

Yes I don't think there is anywhere you could secrete that inside of a 911. Roof rack it is

It’s a break back design, some of the bigger ones can als be split for storage

[mik]

I still don’t understand why centrelocks have to be torqued whilst the car is off the ground, whereas normal bolts are torqued wheels on the deck?

Shirley the same danger of mis-torquing exists?

Is it just that mis-torquing normal bolts means one of 4/5 could be affected as opposed to the sole nut?

[Mito Man]

In my mind when you put a regular wheel on and do up the bolts pretty tight with the car off the ground initially it seats the wheel on the hub equally and properly so when you finally drop it to torque it the wheel is correctly seated.
With a centre lock say you have it pretty tight off the ground but still a few rotations off proper torque - you drop the car but the wheel can have a bit of play so if it then isn't seated correctly and you have weight of the car on it you may tighten to torque but the torque can't overcome the mass of the car so it will never get tightened to spec.

[integrale_evo]

I’ve always done mine with the car on the ground, I snug them up with the wheel in the air, drop it and tighten, just like a normal wheel with multiple nuts / bolts.

I have no idea what the clamping force of a but being tightened to 500+ nm is, but I’m property sure it’ll pull the wheel to the car or the car to the wheel no problem.

I think Porsche just make it as complicated as possible to stop normal people messing around with them.

[mik]

Which seems a far more logical/pragmatic approach Harry. And means you don't need 2 people.

Wheel bolts/nuts get nipped up to the point that the wheel is seated before you drop the car - it's not going to be able to unseat before I torque them fully. I don't see why a centrelock would be fundamentally different.