Jump to content

Eeyore

Member
  • Posts

    1,144
  • Joined

  • Last visited

Everything posted by Eeyore

  1. I’m happy to advise on the potential danger of creating a live to earth connection , but you should contact the manufacturer for further advice on a neutral to earth link.
  2. It’s worth noting that the French version of the Schuko can have an earth pin in the socket. So it’s possible to use one of those to ensure correct polarity; or just fit a UK socket to the inverter.
  3. Yes, because if its the wrong way round you will have an earth to live connection.
  4. There is a surprisingly high percentage of idling as trains can often coast for many miles once up to speed. The effects of idling being offset against the high power demands of accelerating away from a stop. This sounds a bit like the "Italian tuneup" advice often given to boaters with smokey engines, a high power run on deep water to get everything up to correct temperature for about half an hour and alls well again. So perhaps a little synthetic is fine providing you can get it up to full working temperature once in a while? That said, I ran my nearly new Lister LPW3 on Mobil 1. It was slightly undersized and over propped for a 62' nb, so no issues with getting it up to temperature, with the added bonus that it would idle smoothly from start up in sub zero temperature because the thinner oil didn't "gum up" the governor linkages which are internal to the engine.
  5. A fleet of trains that I worked on during their warranty period had Mercedes engines which used a synthetic oil. The Mercedes tech support team seemed to think it was needed in order to keep the oil inside the engine! This of course makes perfect sense as you can design/specify seals to deal with oil molecules of a consistent size.
  6. I wouldn't be so sure about that https://www.prm-newage.com/help-centre-marine The change from engine oil to atf was related to the time it takes for the oil to be 'squeezed out" from between the cone clutches during engagement. In some circumstances engine oil delayed the engagement of the clutch resulting in slipping and rapid wear of the linings.
  7. This tensioner was liberated from an Isuzu engine. Not a marine engine, but the same type as used by HMI when producing their range. Might be an Isuzu part.
  8. Some diagrams in this: 27255_Stelrad-HS_Classic_Web-3.pdf
  9. This post cannot be displayed because it is in a forum which requires at least 10 posts to view.
  10. Did you use a small load, say a 60w lamp, whilst testing? This seems to settle things down a bit. I've experienced units that displayed a harmonic frequency on the meter when off load. The worst one had sheared the screws holding the stator coils to the frame allowing them to rotate; with only the cable connections (briefly) holding everything in place!
  11. The maintenance requirements are quite simple: "The SL model alternator similarly requires no regular mechanical maintenance. It is, however, fitted with slip-rings and brushgear which require regular attention. Inspect brushes and sliprings at 500 hour intervals. Replace brushes when they are worn to a depth of 8 mm. The new brush should be bedded using a medium grade abrasive cloth. If the sliprings are pitted or badly marked the rotor should be removed and the sliprings lightly skimmed. The alternator must periodically be inspected and any accumulation of dirt or oil must be removed. Air inlet and outlet openings must be kept unobstructed." An accumulation of carbon dust from the brushes (normal wear) can cause some interesting symptoms, depending on where it settles.
  12. You will have to dismantle the end of the acoustic box to get to the circular end cover; it requires a clearance of at least its own length to remove it.
  13. The avr is attached to the same bracket as the brush gear, under the end cover. The box on top of the alternator containing the sockets and circuit breaker is fitted by Beta.
  14. Adjusting the engine speed will change the output frequency; and of course a frequency setting on your meter is the ideal way to set the engine speed.
  15. Is this the voltage from a meter on the control panel or from a multimeter? A multimeter needs to be a “true rms” type, otherwise it may give you the voltage you mention by default.
  16. And for us old enough to remember such things, part of a scandal involving some wine suppliers! It is of course the corrosion inhibitors that primarily determine the life of "antifreeze".
  17. Not strictly true as some products are material/manufacturer specific, but I take your point.
  18. I can see that they claim compatibility with "all engines" following a full flush and refill with their product. But just to clarify your post is there a link to any mention of it being compatible with other types of antifreeze?
  19. This post cannot be displayed because it is in a forum which requires at least 10 posts to view.
  20. I think you could have stalling issues on an engine that small; or at the very least "poor drivability" to use the automotive term. Some proprietary external regulators have a "soft start" feature, but you are looking at some form of two channel feed back (i.e in or out of gear) to handle the near 7.5 hp on the belt at 200amp output; can that be reliably achieved with a 6PK belt? The engine would need to be at 1300+rpm just to drive the alternator. As a project it sounds like fun; but not so sure as a practical application.
  21. Further to Tonys post, the small alternator is usually the type with a warning light terminal and an ignition switched positive terminal. These are connected to the wiring by either a "t" shaped plug with 2 wires or a flat sided oval plug with 3 wires. Just need to be careful when picking which wire to touch to the engine. Worst case, you'll blow the "control" fuse that feeds the panel. There are adaptors available for fitting the 3 wire plug type alternator to the wiring from the earlier 2 wire type. Sorry that I gave you duff info, I guess yours was the smaller diameter, but longer ignition switch with screw terminals?
  22. Is there much to choose between speedfit and hep2o nowdays? I had an interesting mix of mark1 and mark 2 HEP2O on my first boat, assembly of the various o rings and grab rings was more or less reversed on the later version.
  23. Useful table at top of this page. https://mobilehomedepotmi.com/plumbing/qest.html
  24. Which is very much what we were used to under the imperial measurement system.
  25. That they use the id of the pipe to specify the size of the fitting, so a 1/2" fitting takes a 5/8" od pipe.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.