miketomcat Posted March 29, 2017 Share Posted March 29, 2017 (edited) I have some mach 5 beadlock rims that have been sealed (I use the term loosely) with silicone. I want to make a rubber gasket for said rims. What is the collective ideas for best thickness and type of rubber to use I'm thinking 3mm nitrile. Mike Edited March 29, 2017 by miketomcat Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 30, 2017 Share Posted March 30, 2017 Do you mean a giant O-ring? Quote Link to comment Share on other sites More sharing options...
miketomcat Posted March 30, 2017 Author Share Posted March 30, 2017 No flat rubber sheet with all the bolt holes in to compress between the flanges. Mike Quote Link to comment Share on other sites More sharing options...
Daan Posted March 30, 2017 Share Posted March 30, 2017 I would do a metal ring with the bolt holes in and a slightly thicker rubber ring (or o-ring) for a seal. If you just use rubber there is no compression limiter, so you cannot tighten them up. Other option, maybe a manhole cover o-ring in between the bead, the rim and the locking ring? This was used on the john sales split rims. Daan Quote Link to comment Share on other sites More sharing options...
miketomcat Posted March 30, 2017 Author Share Posted March 30, 2017 Daan do you think I could use washers between the bead and rim with larger holes in the rubber to allow for them. Mike Quote Link to comment Share on other sites More sharing options...
Daan Posted March 30, 2017 Share Posted March 30, 2017 probably, but it gets very fiddly. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 31, 2017 Share Posted March 31, 2017 I vote sell the clown wheels to a challenge person and buy some proper ones 1 Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted March 31, 2017 Share Posted March 31, 2017 Don't listen to him Mike. I quite like the wheels. Unless you plan on taking them apart on a regular basis, surely RTV would do the job nicely? Quote Link to comment Share on other sites More sharing options...
miketomcat Posted March 31, 2017 Author Share Posted March 31, 2017 They are with rtv now and two leak. Plus I have a perpetual dislike for silicone sealant. Mike Quote Link to comment Share on other sites More sharing options...
landroversforever Posted March 31, 2017 Share Posted March 31, 2017 I like Daans idea best, you've got something to tighten up against then. rather than constantly going round and round the rim doing them up and not having an 'end'. Quote Link to comment Share on other sites More sharing options...
Wytze Posted March 31, 2017 Share Posted March 31, 2017 is it possible to get a groove turned in to one of the parts and just use a O.ring? Quote Link to comment Share on other sites More sharing options...
Daan Posted March 31, 2017 Share Posted March 31, 2017 5 hours ago, Wytze said: is it possible to get a groove turned in to one of the parts and just use a O.ring? If you have a lathe that can chuck a 16" wheel you can... I saw this on ebay: http://www.ebay.co.uk/itm/Expanded-neoprene-cord-rubber-seal-3mm-to-10mm-diameter-10-metre-length-/162006540101?var=&hash=item25b8579f45:m:mRu5Gl69l_TDruYVg7ZofrQ If you create a large o-ring by gluing the ends, the in between rim, tyre bead and locking ring idea could be a decent option I think. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 1, 2017 Share Posted April 1, 2017 I'm just remembering the Stazworks rims on Mouse, they had a big ~5mm dia rubber O-ring that sat in a machined groove in the two halves of the rim. I was envisaging a laser-cut ring that acted as a spacer for the bolts to be nipped up and also added a recess for an O-ring like that. Very similar to what Daan's suggesting I think. That said, the more I look at those rims the less I like the design & the less I like the idea of driving the wife & kids along the motorway with them. Quote Link to comment Share on other sites More sharing options...
miketomcat Posted April 1, 2017 Author Share Posted April 1, 2017 Fridge they are no worse than the millions of alloy split rims out there plus unlike most bead locks the tyre sit on the rim then the rim is bolted to the rest of the wheel. I might well just stick with sealant as I'm more that likely to change to 33" tyres in the not to distant future. Mike Quote Link to comment Share on other sites More sharing options...
Daan Posted April 2, 2017 Share Posted April 2, 2017 I think fridge refers to them cracking around the rim where the spokes are welded on. At least you will get a warning because of a flat tyre. Quote Link to comment Share on other sites More sharing options...
-88- Posted April 2, 2017 Share Posted April 2, 2017 (edited) Hi. I have used three layers of adhesive plastic. Easy to install, just cut off excessive material, seals perfectly. Istantly ready to inflate tire, no waiting for silicone to dry.This plastic is made for coating school books etc. Low cost and available almost everywhere in grocery store here in Finland. I don't know do you have this stuff. Anyway works great. Edited April 2, 2017 by -88- Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 2, 2017 Share Posted April 2, 2017 I wasn't referring to any particular failure mode, just that rims like that are very much aimed at challenge trucks, not trucks which are likely to do tens of thousands of miles up and down the motorway etc. Quote Link to comment Share on other sites More sharing options...
Jon White Posted April 14, 2017 Share Posted April 14, 2017 Why not just run inner tubes? Quote Link to comment Share on other sites More sharing options...
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