Beagler Posted September 17, 2021 Share Posted September 17, 2021 What do people do to lock rear hub to enable undoing and tightening the rear hub nut @ 270Nm. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted September 17, 2021 Member Share Posted September 17, 2021 I borrowed a suitable torque wrench. There are several in the Equipment Register, along with sockets..Some tighten them blind and gingerly drive to where there's an available wrench.And some do force x distance with a rigid lever.JonathanPS: I used a piece of angle iron with holes drilled for two wheel studs to deliver the counterforce from the floor.PPS: Do check that you have the correctly handed nut, and start by hand... Link to comment Share on other sites More sharing options...
John Vine Posted September 17, 2021 Share Posted September 17, 2021 Assuming you have the brakes connected, get an assistant to stand on them hard.JV Link to comment Share on other sites More sharing options...
Beagler Posted September 17, 2021 Author Share Posted September 17, 2021 Thanks guys.have ordered this,https://www.amazon.co.uk/dp/B08BWXC9WM/ref=pe_27063361_485629781_TE_itemmy wrench only goes to 150Nm Link to comment Share on other sites More sharing options...
ScottR400D Posted September 18, 2021 Share Posted September 18, 2021 Why are you undoing them, your car should have the sealed for life bearings, I would have thought? Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Diff whine so changing it. Balance Propshaft, Drive shaft hubs and discs rusty. Paint calipers, replace handbrake cable as is rusty. Touch up suspension where required. All over winter. Link to comment Share on other sites More sharing options...
Area Representative Paul Richards Posted September 18, 2021 Area Representative Share Posted September 18, 2021 I have a suitable torque wrench you can borrow. Are you changing diff because it whines? Not sure a new one will be any better. Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Thanks Paul. Have already ordered torque wrench. Always wonder if a new diff would be better so want to eliminate it.can sell existing diff if new one is same as it must be ok. Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted September 18, 2021 Area Representative Share Posted September 18, 2021 To undo the hub nut do not utilise a torque wrench. It will be damaged if used as an every day ratchet handle.Use a two foot breaker bar to break the stick of the hub nut. Easily done with car on ground, rears wheels chocked, in gear & hand brake hard on. If not impact wrench !By all means use a torque wrench to tighten the hub nut. This should be done in stages. Up to 60NM initially then another intermediate stage before the final torque loading.Recheck torque loading after 150-200 miles. You may be surprised. Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Thanks Geoff. As a time served mechanic and subsequent military Aircraft Engineer, I am familiar with torque wrench use. I do have a long socket bar for undoing. Got a 1mtr angle iron fro B&Q and put two 12mm holes in for studs to hold hub. Thanks for your help. Link to comment Share on other sites More sharing options...
grumpy the 7th Posted September 18, 2021 Share Posted September 18, 2021 Be aware that the car will lift up off the stand if the hand brake brake isn't well pulled up Link to comment Share on other sites More sharing options...
StevehS3 Posted September 18, 2021 Share Posted September 18, 2021 Scott, I wondered if you knew what year the change to sealed for life bearings took place? Is there a way to tell visually without removing 'the nut'? My K series left the factory in Nov. 2011. Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Yes so you put the angle iron on the same side as the bar so the force is down not up Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted September 18, 2021 Member Share Posted September 18, 2021 "... what year the change to sealed for life bearings took place?"2016 suggested here:https://www.lotus7.club/comment/2353316#comment-2353316That thread also includes details of the hub nuts and bearings.Jonathan Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted September 18, 2021 Member Share Posted September 18, 2021 "Yes so you put the angle iron on the same side as the bar so the force is down not up"Hard to describe, but easy when you've got it in front of you!:-)Jonathan Link to comment Share on other sites More sharing options...
ScottR400D Posted September 18, 2021 Share Posted September 18, 2021 #13. Not sure it would make any difference. You're putting a torque on the nut/hub. The reaction from the angle bar on the floor is trying to lift the car but that should only happen if the hub rotates. Safer, IMO, to pull the breaker towards you not push it down. The angle iron needs to on the side of the hub your turning towards so it will be to the back of the car on both sides. (I think!) Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Will make sure it doesnt lift the car. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted September 18, 2021 Share Posted September 18, 2021 Also of note is the left hand drive shaft nut has a left hand thread. If there is no need to service the bearing and the aim is to get at the diff, it is usually easier to undo the deDion ear, remove the brake caliper slider bolts and support the caliper, then take the driveshaft, hub, ear and brake disc off as a unit. Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Driveshafts, calipers and discs and anything else that needs it will be dismantled and painted.Thanks for your input James. My moto is "If it moves oil it. If it doesnt paint it" Link to comment Share on other sites More sharing options...
ScottR400D Posted September 18, 2021 Share Posted September 18, 2021 I wouldn't apply that motto to your brake discs. The changing of which is the only reason you need to disturb the bearings. Everything else can be accessed without. Are they really that rusty? Mine are still fine after 6 years, Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 This was my Westfield built in 1995, still on the road today somewhere. Link to comment Share on other sites More sharing options...
Wrightpayne Posted September 18, 2021 Share Posted September 18, 2021 Not sure of the 'modern' sevens but my '98 car uses triumph discs on the back (like the fronts) which are cheap as chips so if you are taking apart just fit new ones. They have thin headed bolts attaching them to the hub which come off better with a modified socket. Basically grind the bevelled edge off the front face of a 'consumable' socket. I found a 14mm was a snug fit on the imperial size bolt... Link to comment Share on other sites More sharing options...
Beagler Posted September 18, 2021 Author Share Posted September 18, 2021 Anyone changed the diff without using an engine hoist. Link to comment Share on other sites More sharing options...
Wrightpayne Posted September 18, 2021 Share Posted September 18, 2021 I just bench press it with an assistant to poke the long bolt in. If I'm solo I have a diff shaped piece of ply I bolt to the trolley jack and lift it up on that Link to comment Share on other sites More sharing options...
SM25T Posted September 19, 2021 Share Posted September 19, 2021 Remove and refit diff on my own. I use a trolley jack to help lower and raise it. Ref socket for disc bolt removal ... even better is a proper hex socket ... still with the end face ground off. Link to comment Share on other sites More sharing options...
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