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Chalky

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About Chalky

Profile Information

  • Gender
    Male
  • Location
    Coventry
  • Interests
    Cycling, Electronics, Boats, Land Rovers, History

Previous Fields

  • Occupation
    Roboticist / Research Engineer
  • Boat Name
    Lady Jacqueline
  • Boat Location
    Fenny Compton

Recent Profile Visitors

7,440 profile views
  1. What tools

    Sockets and spanners to fit all of the fixings on the engine/gearbox/drive coupling. Assorted screwdrivers, Mole grips, Multimeter, hose clips, block connector, wire, electrical tape, spare bulbs. Same range of tools I carry in the B (just miss out the spare points, plugs and condenser!). Seems like a lot of tools however they all fit in a small tool box in the engine room. Usually the reason why you get stranded is something small breaks, you know how to fix it, but haven't got the tool to fix it with...
  2. Oxford Canal Top pound restrictions - UFN

    I suspect that there's a correlation between the low pound level, the long dry period and the fact that harvest has either started or crops need to be got ready for harvest... Either way the pound is sufficiently low that we can't get off our moorings.
  3. Oxford Canal Top pound restrictions - UFN

    Notice Update: 21st July 17 Navigation: Open, Towpath: Open Oxford Canal Starts At: Lock 16, Marston Doles Top Lock Ends At: Lock 17, Claydon Top Lock Up Stream Winding Hole: prior to Lock 16, Adkins Lock 14 Down Stream Winding Hole: prior to Lock 17, Bridge 147 Update on 21/07/2017: Early indications are that repairs have been successful, Canal and River trust will continue monitoring Restrictions now removed Navigation Open Update on 21/07/2017: Early indications are that repairs have been successful Canal and River trust will continue monitoring Restrictions now removed Navigation Open Original message: Due to very recent water losses to the summit pound it is necessary to close the summit pound, there will be navigation restriction between lock 16 and lock 17 every evening between the hours of 6pm and 8.30am the following day. This is to ensure that there are no accidental losses or misuse overnight and to help maintain and reserve the pound levels. Our engineers are investigating possible causes of the loss.
  4. Oxford Canal Starts At: Lock 16, Marston Doles Top Lock Ends At: Lock 17, Claydon Top Lock Up Stream Winding Hole: prior to Lock 16, Adkins Lock 14 Down Stream Winding Hole: prior to Lock 17, Bridge 147 Friday 14 July 2017 18:00 until further notice Type: Navigation Restriction Reason: Water resources Original message: Due to very recent water losses to the summit pound it is necessary to close the summit pound, there will be navigation restriction between lock 16 and lock 17 every evening between the hours of 6pm and 8.30am the following day. This is to ensure that there are no accidental losses or misuse overnight and to help maintain and reserve the pound levels. Our engineers are investigating possible causes of the loss. You can view this notice and its map online here: https://canalrivertrust.org.uk/notice/11183/overnight-restrictions-between-lock-16-marston-doles-and-lock-17-claydon-oxford-canal
  5. BMC 1.5 Oil Level

    Not the diesel variant but there were a number of different dipstick / sump assemblies used on the petrol variant. This article describes them. http://www.mgexp.com/article/dipsticks.html
  6. Hypothetical 48 volt system (not Hypercritical...)

    There's some 48V automotive equipment avaliable, but its mainly alternators, motors and inverters. It's been used for some stopstart / mild hybrid applications. The attraction is that it's below the 60V cut off for low voltage - 4 batteries in series are Ok, 5 is over the threshold when charging. This was going to be the big thing in automotive and re-appears every few years. Most systems are now either 12V DC or > 300V DC.
  7. There's an article in today's Coventry Telegraph about the Coventry Canal. Features videos and pictures. http://www.coventrytelegraph.net/news/take-look-back-coventry-canal-12476442
  8. folding bike repair

    Get a proper bike shop to look at it and be guided by them. I spent an hour in theatre with a plastic surgeon, 2 days in hospital, a week off work and have 8 hours that I can't account for when the carbon forks failed on my road bike in November. Any frame failure can have dangerous consequences, I was lucky, some cyclists have ended up paralysed or worse. If the bike shop says scrap it and get a new one then do it - it could save you a free ride in an ambulance.
  9. Starter Motor Current

    There is one (petrol) engine that I've come across (about 18 years ago) that used a wasted spark ignition system and had to be cranked for a few seconds to purge the manifold and cylinders of fuel vapour before the ignition was turned on. If it wasn't purged the results were "spectacular".
  10. Starter Motor Current

    With modern electronic engine management the engine needs to spin at several hundred rpm to allow the crank sensor to correctly sync and work out where the crank is. Depending on the control method used it may be necessary to sync cam position as well. A diesel requires more torque to turn it over but most require a minimum speed to get them going.
  11. Starter Motor Current

    What would have been interesting as well would have been the battery voltage. Pulling +1000A will bring it down a lot - I've seen voltages as low as 3V when cranking a 4.6 litre V8 petrol engine at -40C (yes it did start!). The current profile and magnitude look about right. Big problem with Li-on batteries is that their performace is poor at low temperatures and they need to be warmed up to get the best from them (or cooled if too hot). Capacitive starting using a buck boost converter to charge them is a better option.
  12. Repairing press studs on cratch covers

    I got some from Midland Chandlers about 18 months ago. They're also used on a lot of classic sports cars to retain the hood
  13. Timing chain and tensioner for 1.5D

    Try the MG specialists. I usually use the MGB hive. They carry the parts for the petrol engine as stock. I bought the two sprockets, chain, tensioner, seal, gasket and lock tabs from them for my car.
  14. Timing chain and tensioner for 1.5D

    There are 2 cam timings for the MGB, the simplex and duplex being 4 degrees different. The effect is to move the power band by a few 100 rpm. Whether these are common with the diesel is something you'd have to investigate. if there is any commonality I would suspect that the crank sprocket may be common but the cam one would be different. The chain and tensioner will probably be common.
  15. Timing chain and tensioner for 1.5D

    The early 1.8 petrol engines ( 18G* ) used a duplex chain, the later ones (18V) used a simplex one. The tensioners are hydraulically operated. Petrol replacement kits include the correct tensioner and chain. You'll need a new gasket for the cover and ideally you'll change the crankshaft seal at the same time. There's been some discussion on the classic forums about the quality of the tensioners. A Google search will give you the info. On my 18V (late petrol) there is a spacer shim between the tensioner and block.
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