EFA Posted August 11, 2002 Share Posted August 11, 2002 This timeits the turn of the diff mounting bolts! One of the two shorter 12.9 high tensile jobbies - clean in half! Fat Arn Visit the K2 RUM site See the Lotus Seven Club 4 Counties Area Website here Link to comment Share on other sites More sharing options...
old captain slow Posted August 11, 2002 Share Posted August 11, 2002 I don't know! Too much right boot again! C7 CDW Link to comment Share on other sites More sharing options...
wag Posted August 11, 2002 Share Posted August 11, 2002 If you keep breaking your car like this, we shall take it away and give it to Alex Wong. Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted August 11, 2002 Share Posted August 11, 2002 What a splendid idea...... Link to comment Share on other sites More sharing options...
Nick Woods Posted August 11, 2002 Share Posted August 11, 2002 Look, its quite simple Arnie. Your poor overstressed car obviously needs a rest from all that power. What you need to do is a short-term swap for something with a little less grunt, say a 1.6 K-series supersport with a 5-speed box. I'm on holiday all this week so I can pop down to yours whenever its convenient and let you borrow my engine and gearbox in exchange for yours. 😬 😬 😬 😬 😬 😬 Only for a short while of course, a year or two would be enough. Nick P8MRA - The green one with red wings Edited by - Nick Woods on 11 Aug 2002 22:59:10 Link to comment Share on other sites More sharing options...
edmandsd Posted August 12, 2002 Share Posted August 12, 2002 This could be as a result of the Quaife sequential box Arnie - If this is the case you can get a different design of prop to reduce the 'shock' experienced by the diff. Link to comment Share on other sites More sharing options...
philwaters Posted August 12, 2002 Share Posted August 12, 2002 I hope it is really hard to get the other half out of the Diff Arn... you should see the state of my thumb - nicely black all over! 😬 😬 😬 😬 Phil Waters Zetec is in and running Link to comment Share on other sites More sharing options...
stevefoster Posted August 12, 2002 Share Posted August 12, 2002 Phil, moan, moan, moan, moan, moan! I hope you get all the moaning over before Sat and you have to do some real work... You might break a nail on my trailer ramps. Steve My racing pics here Hants (North) and Berkshire area club site here Link to comment Share on other sites More sharing options...
philwaters Posted August 12, 2002 Share Posted August 12, 2002 mmmm, maybe this car stuff is too risky after all.... costing me a fortune in manicure sessions! Arnie, have you a set of left hand thread removers (like a set of taps (not the water kind!)). A small hole to get them a start and they get most bolts out.. Phil Waters Zetec is in and running Link to comment Share on other sites More sharing options...
Marius Posted August 12, 2002 Share Posted August 12, 2002 Arnie, you´re nuts ! A friend of mine is working in space-craft engineering, maybe he could supply you with some decent bolts to keep K2RUM together, titanium-multi-super-high-grade-mars-tested-carbon-stuff or similiar.... Good luck at Curborough though ! Marius Link to comment Share on other sites More sharing options...
stevefoster Posted August 12, 2002 Share Posted August 12, 2002 Drilling 12.9 isn't that easy with ordinary DIY drills... Steve My racing pics here Hants (North) and Berkshire area club site here Link to comment Share on other sites More sharing options...
Peter Carmichael Posted August 12, 2002 Share Posted August 12, 2002 How old was the bolt? *thumbup*253 bhp, up and running *thumbup*New boingy bits Link to comment Share on other sites More sharing options...
Jason Plato Posted August 12, 2002 Share Posted August 12, 2002 Even if the bolts are upgraded , what is the next weakest link in the rear end ??? Your best bet Arnie is to detune to around 230bhp preferably before 25th August ...... Dave Link to comment Share on other sites More sharing options...
Smokin Joe Posted August 12, 2002 Share Posted August 12, 2002 Arnie, if you'd follow my route 3.4lV6 chevrolet, Borg Warner T5 tranny, and GM 7.5" 10bolt rear end you too would put out 300+ horsepower and never break a thing! Greetings from Louisiana and good luck at Curborough! Just before you all start the damn Yank thing...... 1. I live in the South so would be a southerner, 2. Was born and raised in the UK and my parents live in Upper Hartfield... are we neighbours! Best wishes, Joe Link to comment Share on other sites More sharing options...
elie boone Posted August 12, 2002 Share Posted August 12, 2002 Arnie, did you check the bolt's regularly for thightness a M12 in 12.9 grade is strong enough remember that some cossie's had far more power than your VX also i think that the support for the diff is to small ( only at the center of the chassis ) it would be better to have some extra supports going to the outsides of the chassis x bracing or............ have a decent chassis that is a 5 link live axle 😬 Link to comment Share on other sites More sharing options...
Blatman Posted August 12, 2002 Share Posted August 12, 2002 Arnies chassis already has substantial extra bracing around the diff, fitted by Arch........ Link to comment Share on other sites More sharing options...
EFA Posted August 12, 2002 Author Share Posted August 12, 2002 Ellie, The cossie uses a different differentail and like the Sierra (and probably Westfooled, Blatman) it uses 5 bolts to hold it in. The bolts were last checked about 1 year ago, but the broken one appears to have been so for some time! Steve, DIY tools aren't required. Phil at RRT says he can probably get it out, and if he can't he'll just swap the casing. Dave J, My cars only got 230bhp....... at the wheels...... Dave E, Good old Elan rubber doughnuts in the prop? Peter C, They are one of the few remaining original parts! Joe, Upper Hartfield like Pooh Bear??? And yes of course I'll win at Curborough. Secret weapon taking shape! Phil, Try doing a search from "balck thumbnail" on the web and see what you get!!! I'm shocked! Fat Arn Visit the K2 RUM site See the Lotus Seven Club 4 Counties Area Website here Link to comment Share on other sites More sharing options...
Smokin Joe Posted August 13, 2002 Share Posted August 13, 2002 Yes Arnie in 100 acre wood! Well I am in Baton Rouge Louisiana but the parental domicile (and my old Dutton B type) are there. Building an all american 7 here with the aforementioned running gear. Can we post pics? Personally K2 is fab baby and the naysayers never appreciate the amount of thought and effort that goes into her, least the expense. go get um at Curborough, and keep the rears " smokin" Regards Joe Link to comment Share on other sites More sharing options...
edmandsd Posted August 13, 2002 Share Posted August 13, 2002 They are known as resilient props I think - recommended in sequential/dog box applications. I drove a Mk2 Escort with a Quaife sequential and found the change to be quite harsh on the hand and the axle at times. Maybe just a coincidence that this has happened around the same time as using the sequential box of course. Link to comment Share on other sites More sharing options...
DohNut Posted August 13, 2002 Share Posted August 13, 2002 I think that some/all motorbikes have a springy sprocket that gives a controlled amount of give to ease some of the shockloads through the transmition. I understand that some of the BEC*s removed this and was one reason for the engines dieing. I stand to be corrected by someone with more experience of this than me. Nick Link to comment Share on other sites More sharing options...
sjwb Posted August 13, 2002 Share Posted August 13, 2002 DohNut, The springy thing is a cush-drive. A set of rubber type buffers interspersed between the drive sprocket and wheel center. Sadly most of the 140+ hp bikes tend to destroy them - Kawasaki especially. I would imagine that the sprockets and transmission components would suffer but not the engine. As for the propshaft the correct term is RUT or 'Rutted', yes seriously. The RUT stands for Rubber Up Tube (that was a shock wasn't it)? They DO NOT work on high torque applications and are poor where refinement is required, There is a tendancy to shear, whip and run out of balance. Now, where a Se7en is concerned the refinement issue is not a consideration - as for the shear? Well who can say? Steve B Link to comment Share on other sites More sharing options...
elie boone Posted August 13, 2002 Share Posted August 13, 2002 Blatman, extra bracing in the tunnel alone won't help, you have to take the load to the whole with of the chassis. Arnie, 1 year ???????????? a friend has his seven checked after every major run or track day and he's got a mega 115bhp. Link to comment Share on other sites More sharing options...
edmandsd Posted August 13, 2002 Share Posted August 13, 2002 The resilient props i'm referring to are specifically designed for high power/torque outputs with many being found on tuned Cosworths - Can't see the power of a 2 lt n/a Caterham weighing circa 500kgs causing one a problem. Link to comment Share on other sites More sharing options...
Michael Peterson Posted August 15, 2002 Share Posted August 15, 2002 Smokin Joe: Would that make you a cujun scouser, or southern fried hagus? No officer, the wheel is on the RIGHT side. Red Super Sprint De Dion Soon! Link to comment Share on other sites More sharing options...
Smokin Joe Posted August 15, 2002 Share Posted August 15, 2002 But my 7 on the Bayou is hotter than Tabasco! So its Liverpudlian Gumbo and Jambalaya in the Sporran to you. Ca Va mon ami.... Joe Link to comment Share on other sites More sharing options...
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