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danny_galaga

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Everything posted by danny_galaga

  1. danny_galaga
    Case closed. I was curious if anyone was using automotive cable. Turns out some people are. So will I 🙂
  2. danny_galaga
    Without looking it up, I wouldn't be surprised if it's to do with fatigue. Aluminium wire I reckon would crack easier than copper. I feel it would have less flex I had no idea it was being used for starter motor cables though 😲
  3. danny_galaga
    That's getting a bit academic. I'm not building a 11kv transmission tower! Everyone uses copper cables for starter motors. so will I. Lucas sometimes used aluminium for field windings in their starters. The copper tag of the brushes were spot welded on. If you had to replace them, normally you would cut off the brush, leaving a bit of the copper tag behind. Then bind the new brush on with a single stand of copper wire and solder. One place I worked at did a lot of vintage stuff, and someone had a roll of 'aluminium' solder. Not sure what it was made from. Apparently unobtainium, because you couldn't buy it anymore. But it could solder copper to aluminium! I never used it though.
  4. danny_galaga
    When you say some manufacturers, do you mean aircraft manufacturers? It's certainly best to keep the lead as short as possible. You need cable going to a starter motor. It needs to be flexible.
  5. danny_galaga
    Fully agree. We always soldered our cables with gas. The flux was a paste from memory.
  6. danny_galaga
    Particularly the 'motorbike sized' starters like Rotax and Jabiru. Just curious. Would be much easier to set up with automotive than tefzel. You can get pre-made lengths easily enough. Obviously a drawback is it would be more likely to create smoke in a dead short situation. My thought is that with an isolator, it shouldn't be a problem. The run is quite short in my plane too, which also reduces the risk of a short.
  7. danny_galaga
    I think they use reduction gear starters now. Pretty sure my Victory did. At one stage Harley were using Hitachi starters 😄
  8. danny_galaga
    Yeah that pic seems to be an aftermarket part from Turkey. Delco were ok. My own personal opinion was that Bosch were the gold standard in quality. Nippon Denso weren't bad (and as we are noticing on this little journey, quite ubiquitous on small engines). At the bottom of the heap in terms of design and or quality were Lucas, prestolite, magnetti Martelli and Hitachi There were niches of course. CAV made really good quality truck starters, albeit complicated. Bosch next in truck starters, then Delco. Delco weren't bad mind you. Just a bit simpler. Easy to overhaul though.
  9. danny_galaga
    Damn it was hard to find a 3 brush starter example. I thought I was losing my mind 😄
  10. danny_galaga
    Looks like the latter Rotax starters are 4 brush, and the earlier black starters are 2 brush
  11. danny_galaga
    It's a very small force compared to everything else going on in there. A lot of the 2 brush jobbies are 90 degrees to each other. On my accusation of a RO-tax on the starter. Maybe I was too harsh. Here's the price for the similar Suzuki starter mentioned earlier 😲 https://www.cmsnl.com/suzuki-vx800-1990-l_model14275/partslist/FIG-23.html#.ZDZm6WR_U0E Price for that after market one is about $210 including freight as far as I can tell. 🤔
  12. danny_galaga
    Oh actually, I think maybe two on one side and one on the other because one of the poles (I want to say +) might run hotter...
  13. danny_galaga
    Most car and truck starters have 4 brushes. Some of the smaller Nippon Denso car starters had 3. Maybe I was mixing up that memory with something I'd seen recently! I never knew why 3 when I was an apprentice but I'm thinking it would be a way of increasing resistance for a lower current draw on existing 4 brush designs. Why not two then? Haven't the foggiest 😄
  14. danny_galaga
    Apologies. I could have sworn I saw 3 somewhere!
  15. danny_galaga
    You know, I've thought about it since more, and I'm tempted to buy that German after market F650 starter for shits and giggles. If it turns out to be not useful, it will be easy to sell on...
  16. danny_galaga
    That's a two brush starter. What did you do for the third brush? Or were they ok? Can narrow down those kits to a f650 or vx800 starter. If you need to change the brushes for instance, there can be different compounds. That can make a huge difference. For instance, the only difference between a 12v 40mt truck starter and a 24v 40mt truck starter was the brushes, and you didn't undercut the commutator bars.
  17. danny_galaga
    "Guten Tag The F1205 is sold out. warm regards" Oh well.
  18. danny_galaga
    Yes that's the first link I found. That seems to be a car dealer. Doesn't matter, I'm sure there'll be something closer to home. The only problem now I guess is if the last model to use that starter was 2012 (not saying it is, but if it was) then NOS of starters is going to be thin on the ground. Motorbike starters wouldn't be a big seller to begin with. I know myself if it was my bike and it was out of warranty, I'd hit the wreckers first before going new. And then we are back to the aftermarket one. I'm sorry I opened that Chattanooga Choo Choo link now, it's screwing with my edit function... Let's see if I hear back from that German outfit.
  19. danny_galaga
    Do you have a link?
  20. danny_galaga
    Yes I still think of them as Nippon Denso. The Denso solenoid is made in Japan. Wherever the Denso starter is made that Rotax uses will be good enough for me 😁 So if it is an F650 starter, wherever Denso gets it made is obviously speccy enough. Although I think most of their motorbike starters are still made in Japan.
  21. danny_galaga
    Good point, except that a badly made starter can get just as explodey as one that has the solenoid stuck on, which we decided in another thread might not be good for your engine. Although now I think about it, no shrapnel from this design of starter can get into the engine if it disintegrates. Maybe aftermarket would be ok to try, so long as you don't mind a dead short for a few seconds while the armature windings hit the magnets 🤔 Onetrack, Australia is not the UK so I doubt brexit would matter to a German supplier sending to us. a lot of the stuff vectriq are selling is made in Holland for instance. However I might try and contact an Australian BMW parts outfit about the F650 starter. See what they would charge.
  22. danny_galaga
    They have quite clearly sourced the correct genuine Denso starter 🙂 I have shot them an email to ask about price and availability. Sometimes, like with my fuel pump guys, the info stays online years after the business has gone under. Let's see if they reply.
  23. danny_galaga
    I have dealt with them before. Great service. They stock the aftermarket regulator/rectifier for the 912 that I bought 🙂 https://www.vectriqparts.com.au/product/rotax-voltage-regulator-carr5115/ I am becoming somewhat confident the starter is the same as the F650, so not too worried about the VX800 unless that is more easily had and at a great price since it sounds like you would have to swap housings. Doesn't look like vectriq does either. And while the aftermarket regulators are an improvement on the originals, I'm not so sure of the quality of aftermarket starters. That's a much harder thing to emulate well than electronics. If you are ok with aftermarket, then the guys I linked to earlier would be a source (provided I am right about the F650 being the same starter) https://www.stein-dinse.biz/product_info.php?language=en&products_id=524427#prettyPhoto
  24. danny_galaga
    The German site is informative, but I'm thinking I've nailed it with the F650. When you have similar machines or within a range people making starter motors don't make different specs for every single machine out there. Classic example is the Bosch car starter, from about 1960 to 1990. The same starter was used on Holden's and Ford's, Ramblers and Triumphs. Only the front housing was different. The carcass was the same. I'm confident that Suzuki starter, f650 and Rotax 912 have the same carcass. And I strongly suspect the Rotax 912 IS the f650.
  25. danny_galaga
    I should say, this is obviously for us Experimental, or 19 rego guys. I've had luck with the solenoid so far. Kyle seems to have found what fuel pump Rotax source. There's only so many things to measure on the starter, if I can get my hands on one. I might try and find a U/S one from the wreckers cheap to measure up. It's unlikely they are modifying the starters to suit their engine, but I concede it's a possibility. Most likely thing would be to machine the face plate for some reason. Still unlikely because they would have to pull apart the starter to machine it, and all that extra labour to potentially make it slightly weaker than it was before. Better to design the starter mount around an existing design. Same with the fuel pump- why reinvent the wheel? And I'm guessing it will be the same for the stator, and maybe rotor.
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