Darmic1 447 #51 Posted January 15, 2017 The wheel and tyre combo shown with the rotavator attachment is I think an adaption to fit something bigger??? Share this post Link to post Share on other sites
Darmic1 447 #52 Posted January 16, 2017 I want to keep this project as close to original spec as possible. Unfortunately the 2.25x8 tractive tyres became obsolete quite a few years ago. A lot of internet time has been spent looking at the USA and China for alternatives........ So, after a long conversation with Bigtyres.co.uk this morning have decided to order a pair of 3.50x8 tyres. These are the closest we could find for sensible money at £18 each plus £15 a side for innertubes. There was another option available with 3.00x8 tyres through Allterraintyres, but at £49 per tyre, plus tube, plus delivery and VAT........... almost £150😲😲😲....... I've decided the cheaper option will have to do!!! Hoping there won't be a clearance issue? There is a little room to play with, the tyres are roughly 1.25' wider overall, if I have to make a wheel spacer then so be it!!! Share this post Link to post Share on other sites
Stormin 4,458 #53 Posted January 16, 2017 BigTyres are a good outfit to deal with. Get my tyres from them. Share this post Link to post Share on other sites
pmackellow 2,738 #54 Posted January 16, 2017 Have you tried All Terrain Tyres Darren ? I know Chris (Mr Showman) uses them a lot Share this post Link to post Share on other sites
Darmic1 447 #55 Posted January 16, 2017 51 minutes ago, pmackellow said: Have you tried All Terrain Tyres Darren ? I know Chris (Mr Showman) uses them a lot Yes Paul.......... £49 each for a 3.00x8 plus tube, plus shipping, plus VAT........ around £150 1 pmackellow reacted to this Share this post Link to post Share on other sites
Darmic1 447 #56 Posted January 17, 2017 Started the strip down of the actual tractor today...... it's now just a gearbox and a pile of bits! Share this post Link to post Share on other sites
Darmic1 447 #57 Posted January 17, 2017 Also had a delivery of tyres and tubes today........... Had to fit one to see if there would be any clearance issues............. Erm????? They are quite a bit bigger!!! 1 S1g reacted to this Share this post Link to post Share on other sites
Darmic1 447 #58 Posted January 17, 2017 Sat the engine back on and refitted a wheel and tyre to check for clearance issues........ It's close, really really close! about 2mm close!!!!!! I think I will make up a spacer plate and lift the engine by 5mm, there is enough slack in the chain and plenty of room in the chain case to allow for a 5 mm lift. if that doesn't work then maybe make up some wheel spacers and move them out by 10mm or so? Of course the 'bodge' would be to dent the cowling in a little...... I won't be doing that! 3 pmackellow, Alan and S1g reacted to this Share this post Link to post Share on other sites
pmackellow 2,738 #59 Posted January 17, 2017 Cosy ! 1 Darmic1 reacted to this Share this post Link to post Share on other sites
S1g 579 #60 Posted January 17, 2017 Cant blame youfor going with those tyres at the price difference, I know I would do the same. Do you think it will alter the traveling speed being a bigger diameter? 1 Darmic1 reacted to this Share this post Link to post Share on other sites
Darmic1 447 #61 Posted January 17, 2017 Yes, most probably...... I could do the calculations...... but my brain hurts! I will have to measure the circumferences and see what the difference is for every revolution of the wheel! I think the clearance issue might possibly resolve itself? Those tyres have been on a shelf for a while and they were quite flat, pushing the centre of the tread upwards....... Hoping that if I get them warm and leave them inflated they will relax a bit??? 1 S1g reacted to this Share this post Link to post Share on other sites
Darmic1 447 #62 Posted January 19, 2017 I made a start on the Villiers Mk12 today, I noticed the governor had been broken off where the spring for the throttle connects. Whilst this didn't really worry me that much as I had the engine running like it. However, after removing the sump this afternoon I was greeted by some loose parts sat in the bottom of the engine! It would appear that the governor had possibly been snapped at some point whilst the engine was running, this then allowed the engine to 'run away' causing the governor gear and counterweights to self destruct! The brass counterweights are bent and twisted on the pivots and the 2 centre pins are bent over to about 20 degrees......... Thankfully the only damage these loose bits have caused is some very light scoring to the crank lobes. The crank and all other internals are perfectly good to use again. It's a good job Alan and Chris persuaded me to take the spare MK12 sat at Johns! At least I have a source of spares!!! 3 the showman, pmackellow and Alan reacted to this Share this post Link to post Share on other sites
Darmic1 447 #63 Posted January 22, 2017 Well I cannibalised the spare MK12 today to recover the governor assembly, am pleased to say its exactly the same! Have also removed all the old paint and then reassembled the engine. I then etch primed it and once dry gave it a coat of top coat....... 4 nigel, Stormin, the showman and 1 other reacted to this Share this post Link to post Share on other sites
the showman 4,074 #64 Posted January 22, 2017 Making good progress Darren, as the paper says " game over " well not quite but won't be long , 1 Darmic1 reacted to this Share this post Link to post Share on other sites
Stormin 4,458 #65 Posted January 22, 2017 Coming along nicely. 1 Darmic1 reacted to this Share this post Link to post Share on other sites
Darmic1 447 #66 Posted January 22, 2017 1 hour ago, the showman said: Making good progress Darren, as the paper says " game over " well not quite but won't be long , The gearbox will be the biggest test Chris, the bronze bushes on the main drive axle are shot....... there's about 3-4mm play each side!!! Its ready to strip down, just building up the courage to tackle it......... 1 the showman reacted to this Share this post Link to post Share on other sites
Darmic1 447 #67 Posted January 22, 2017 1 hour ago, Stormin said: Coming along nicely. Thanks! Share this post Link to post Share on other sites
Darmic1 447 #68 Posted January 23, 2017 Put the ignition system back together and refitted the back plate, refurbished the carburettor, fitted the new air filter and then the exhaust. just the flywheel timing and the cylinder head left to do and it should be a runner? 3 Stormin, Alan and S1g reacted to this Share this post Link to post Share on other sites
Darmic1 447 #69 Posted January 24, 2017 Engine now complete, timed, points set, cylinder head refitted and flywheel tightened.......... Time to give it a try??? Here's a short video of the 1st time running........ 2 Stormin and Alan reacted to this Share this post Link to post Share on other sites
Darmic1 447 #70 Posted January 24, 2017 Received a call from the steel fabricator today, saying the rotor cover was ready for collection...... Very pleased with the result!!! 3mm folded and cut to my exact cardboard template and the hinge tube welded on. It fits perfectly..... just needs painting! 2 Stormin and Alan reacted to this Share this post Link to post Share on other sites
Alan 1,273 #71 Posted January 24, 2017 Very quick progress Darren. Looks brilliant. 1 Darmic1 reacted to this Share this post Link to post Share on other sites
Darmic1 447 #72 Posted January 24, 2017 Thanks Alan! What else can I do with my 3 rest days??? 1 Alan reacted to this Share this post Link to post Share on other sites
Stormin 4,458 #73 Posted January 25, 2017 He's made a very nice job of that, Darren. Seems a shame to paint it. 1 Darmic1 reacted to this Share this post Link to post Share on other sites
Darmic1 447 #74 Posted January 25, 2017 14 hours ago, Stormin said: He's made a very nice job of that, Darren. Seems a shame to paint it. That he has, most definitely! But its now painted!!! Share this post Link to post Share on other sites
Darmic1 447 #75 Posted January 25, 2017 Also cracked on and into the gearbox this afternoon...... Quite clean internally, a little sludge, but overall not too bad. The bronze bushes on the drive axle are quite badly worn as well as the axle itself........ Damn!!! Axle was originally 1" diameter, now measures 0.985 at the most worn point. Bushes should be 1.125 o.d x 1.0 i.d x 1" Jim Beacon is going to help me with this issue! Maybe turn the shaft down and make bushes to fit? Will then need to make some spacers to make the wheels fit again!!! In the meantime will strip the handlebars down, dismantle the ploughing wheels and get them to the shot blasters. Here's the gearbox once opened up......... 3 S1g, Stormin and Alan reacted to this Share this post Link to post Share on other sites
