The rehabilitation of Sir Gustave Sabastian (‘Gus’)

Discussion in 'New Zealand' started by Box'a'bits, Aug 22, 2010.

  1. Padmei

    Padmei enamoured

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    Hi Nutso.
    At my local there was a newish bike frame they were throwing out. It is a Kinectic 175 frame but had a quite good looking centre stand. It measured 120mm across at the top & splayed out reasonably wide at the bottom. It was about 300mm long.
    Anyway it caught my eye as it looked to be as grunty as my motobins centre stand & thought it may be asomething you could perhaps modify. If you are at all interested let me know & I'll email you a couple of pics.
    Regards
    Padmei
  2. Box'a'bits

    Box'a'bits In need of repair

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    Cheers Padmei. If nothing else could maybe cut it up to modify the existing stand.

    Now tell me more about your Motobins centre stand? Did you replace yours?
  3. Padmei

    Padmei enamoured

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    I got mine when 1st got bike.as the original was well worn on the feet. It was the clearance ones for 24lbs. It's ok but there is a bit of flex in it when lifting the bike- kind of walks slightly back sometimes but I don't know if that is normal anyway. I do remember it being quite lite to pick up.
    I'll take that other stand off the frame & send up to you - if it's no good you havne't lost anything but may be a cheap easy solution.
    I really have to get a sidestand sorted tho. it's nearly impossible to use the centre stand out adv riding unless there's a handy flat concrete slab around.:D
  4. Box'a'bits

    Box'a'bits In need of repair

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    So the clearance stand is supposed to be the the low exhaust option. Is there any real difference between the new & old one? I considered getting one - definitely worth it at the price.

    How has Pete's gearbox breather worked out? Why don't you see if he can copy the Boxer Supplies sidestand pivot?
  5. Padmei

    Padmei enamoured

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    I'm not sure of the diff between old stand & new as threw the old one out before comparing.

    The Breather.

    Here's the prototype Pete sent over. it is manky looking cos I filled the hole with minutemetal. After using the old speedo cable outer as a breather I prefer to have a smaller breather hole as I have had problems with the oil spurting out under pressure going up knarly hills. I put this one down to the BMW engineers knowing what they were doing by having such tiny breathers.


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    Here's the comparison with the plastic inner the speedo cable sits into.

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    The first issue was when fitted into the gearbox case it was sitting proud. I took it out & saw that the speedo gear drive was still in situ. I pulled it out & took a measurement. I'm not sure if the drive unit is sposed to be left in there. There may be problems if it is taken out or left in.
    I don't know if it's that important.
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    If the speedo drive is to be left in then the length below the surface flange has to be shortened or the internal bottom hole bigguned.

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    The second thing I would change is to have the upper spigot(?) thinner to run a thinner breather pipe. As you can see the spigot is about 10mm & the ideal pipe size i'd like to use has a 6mm id.



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    I fitted it again & it slid in nice however the standard old breather bolt was binding on something. I twisted & wiggled then took it out to compare with the plastic one. The groove at the side on the original is quite a bit deeper than the new one so the bolt won't get past. The new one was only about 5.5mmish.

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    Luckily I had my SCA budget milling machine handy but it didn't really like the SS . :doh

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    I left it there for now as I was on parenting duties.
    The question is for me whether leaving the speedo drive out will Fk something up in the gearbox????
  6. Pete-NZ

    Pete-NZ Been here awhile

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    Send that black thingy over...
    Dose it have a 8mm retaining bolt ?..
    That drawing all up the poo then..
  7. Padmei

    Padmei enamoured

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    Will do. Apart from the fixing bolt groove it may verywell be all good. The breather hole size is my preference & the speedo drive may be left out.
    I will send it over to you & get onto the groove with a file so it fits.

    You coming over for a Nads ride soon? i really want to pick your nose about my sidestand & put some cash in your pocket. Ummm figuratively that is... I'm not a DR rider...

    ps if you quote a post you can easily delete the pics so they're not replicated ;)
  8. Voltaire

    Voltaire Bored Of The Rings

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    I removed the speedo cable on the racer and a mate made me a plug to go in the hole. I put a std bolt in the side in place on the one with a hole. On the top of the gearbox I took out the one that holds the filter housing clip and drilled a 4 mm hole for the gear box to breathe.
    Bad move as fist weekend at Puke it spewed EP90 into the air filter.....:cry

    Then put the drilled bolt back in the speedo drive....all good.
    I'll have a look at my disassembled box but I think you could safely leave the speedo drive out.
    Your breather looks good.
  9. Box'a'bits

    Box'a'bits In need of repair

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    I removed the drilled bolt & replaced with a standard bolt.

    I cut the speedo cable & used the outer as a breather. That goes up nr the steering head. There is a bit of air filter cable tied over it to prevent dirt going back down. Down at the gearbox, there is silicon around the inside of the rubber boot that surround the speedo cable outer / gearbox interface, to try to keep water out from there.

    I left the speedo drive in.

    I suspect both Padmei & Voltaire's breather set ups didn't let oil bubbles disperse (?), whereas my set up curves & allow this to breathe better (maybe). The speedo cable interior isn't big, & that might be part of the issues you both experienced. I also think the bigger (wider) breather set up may achieve the same thing. Phreaky Phil has breathers for his final drive & gearbox, and hasn't commented on issues.

    Padmei, I thought the whole point of getting Pete to make this up was to get the breather higher, in part so creek crossings weren't an issue. Your modification defeated that. :huh

    Pete, alloy would have been fine (or even Nylon), give it sits in the alloy case. The breather (or not) retaining bolt is only 6mm, but maybe there is tolerance in case the plastic casing is put in slightly off centre?
  10. Pete-NZ

    Pete-NZ Been here awhile

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    Alloy..... surpose yer want it anodized aswell :wink:.....
    It just so happens I have a anodizeing plant if I put it back togeather... anyone have access to small
    amounts of custic soda in powder form...

    Side stand.... Thought yer made one....
    Ride the beemer over we can turn the breather and make a stand...
    PS.... what pictures
  11. Box'a'bits

    Box'a'bits In need of repair

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    Pete, what I was trying to say was that the material doesn't really matter. It's effectively just a plug, and a way to get excess pressure out of the gearbox.

    Yes, I have a good working sidestand. It's Padmei that is struggling with it. Especially now he has ditched his crashbarfs, which held the pivot for the old one. I'd like to ride the Beemer over, but there's this ditch is in the way...:wink:

    I didn't end up posting those pictures because I thought Padmei was going to organise to get you all the bits.

    I'm away this weekend (in about 10 mins).
  12. Padmei

    Padmei enamoured

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    I think that the BMW engineers knew that the gearbox doesn't need any more of a breather than what was initially installed. I think in retrospect having a big hole just allows much more oil to be squirted out that shouldn't happen. I think it is more of a pressure release. I think the interior of the speedo cable is too big and allows oil to move up & down the brether tube under pressure.
    I was using the same setup as you however my speedo cable came out just under the seat. Oil spurted out untl I covered the end with a piece of cloth. My breather bolt has its' hole siliconed up.

    I am running a tube onto the new breather just the same way however instead of the 5mm breather hole it will be 3mm.
  13. Pete-NZ

    Pete-NZ Been here awhile

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  14. Padmei

    Padmei enamoured

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  15. Box'a'bits

    Box'a'bits In need of repair

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    MMMM 2012 - Friday

    After issues getting annual leave from work (at the last minute), I managed to negotiate Friday & Monday off.

    MarkS bailed on the ride up to Napier. No matter, it just gave me more flexibility. Was scheduled to leave here at 8.00am, but actually left at 9.00.

    I completely filled Gus's gas tank before leaving, to check the fuel consumption. Took 40 litres from what was in reserve.

    Over Rimutaka’s, for coffee at Martinborough. Then past Gladstone right at Te Wharua Rd, & link to Kaiwhata / Homewood Rd, through the forestry (logging truck signage out) & out to Riversdale Beach. Loved that section – haven’t been on that road since the early 90’s.

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    Homewood Road, Wairarapa

    Amazing the grip that a new set of tyres gives too, even at road pressures. But at Riversdale beach the sand was too soft to give any chance of an extended blast, so stopped nr the camp & had lunch (roast beef, edam & relish sarnies).

    Linked across to Tinui, & out to Castlehill Rd. More logging truck signage out, & this time caught a grader at work, which changed the traction dynamic somewhat. Linked to Route 52, the left at Pori Rd, to ride some ridgelines, through to Connor, Waitahora, & coffee at Maccas at Dannevegas.

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    Pori Rd, Waiararapa

    Originally the plan was to link across to Blackhead beach again, but given the black clouds that way, & the time , decided to forego that, & leg it up to Napier.

    Not too impressive fuel consumption – 12.3km/l for the 477kms (?) traveled.

    Overnighted at Westshore, subway for dinner, grabbed some rolls for breakfast. It was drizzling on & off all night.


    MMMM 2012 – Saturday

    Bart & Wade showed at 6.45am. I wasn’t quite ready – but Bart had said 7.00am, then changed things after I left, so…Missed the rest of the Hawkes Bay riders by not much – caught them on the road. Not too chilly through to Mohaka, started getting frosty after Tarawera.

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    DRGirl, ?, Pomgolian

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    Photo courtesy of Bart

    We’d decided to meet the main MMMM group at Pohokura Rd.

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    Pohokura Rd. Photo courtesy of Night Falcon

    I missed that given an urgent need to find some shrubbery (too early in the morning for me). I re-emerged to see Rosie (tail end Charlie) cruise on past. Caught her, & then latched onto Jatz, on his new GS. Very nice. I nearly spoiled the ‘new owner bliss’ for him, when he slowed on an icy patch. I didn’t realize until too late, & nearly slid into him, slightly sideways..

    I’ve always enjoyed the forestry section. Bottomed out on a couple of unexpected erosion ruts.

    Gerard crashed his modified R1100GS part way through – front end wash out (cruising at 100+kms in 6th gear). That was about 10.00am. He kept riding, but needed help getting his helmet on & off, & I could see his shoulder was slumped on the right side. He finished the Lake Waikaremoana ride, and then rode back to Palmerston North. He finally went to A&E at 7.00pm, & they found he had broken his collarbone in three places. Hard man.

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    See how well some fluro gear is allowing you to identify people. Fluro pink - Rosie. Fluro yellow helmet - Night Falcon. Wincing with pain, & looking uncomfortable with no visor - GSer...

    This year Clint had organized a challenge loop near the Minginui end. He mentioned a greasy rutty up hill. Given Gus wasn’t running particularly well & doesn’t like ruts, I decided to forego it. Chris’s photos probably captures the moment.

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    Photos courtesy of Chris Whitehead

    The road down to Lake Waikaremoana was in pretty good condition, well swept, & no particular ruts. Not a lot of wandering stock this year. At one of Maori communities we came across a heap of people standing on the road (we later decided they were waiting to be welcomed onto the Marae).

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    Hopuruahine Bridge

    Concerning how much this bridge moves around with just bike traffic over it...

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    Gremlin

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    Rosie

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    There was a fairly massive queue waiting for gas at Lake Waikaremoana. Not really an issue for me. Got to be some payoff for the weight penalty...:wink:

    Another grader after Lake Waikaremoana. I think he was supposed to do the hill near the Dam but got carried away. It appeared to me that he was making the road worser. :huh

    I decided not to do the extra sections Clint had scheduled. In past MMMM’s I’ve found the late afternoon gravel a ‘bridge too far’. Instead I popped into Wairoa for a quick pie & coffee (& put in 15 l’s of fuel to ensure I had gas adequate to Opotiki). Just as an aside, when I was gassing up, a concerned XR Jonny visited, worried as to what the cops on the bridge were doing. How long did you wait there Jonny? I buggered off & followed the Tiniroto road to it’s logical conclusion, & up Route 2 to the Matawai Hotel by about 4.00pm.

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    Photo courtesy of Pomgolian

    Once my bed was sorted, I decided to sort out a couple of niggling issues on Gus. I found that the gearbox bolt (that was supposed to be holding on the airbox) was actually lounging around in a pool of hot gearbox oil at the bottom of the airbox. I hope it enjoyed its oil bath, because next time that sucker is getting loctited in place. The oil baths are all well & good, but they make a hell of a mess.

    I also tweaked the choke eliminators. The drop from the adjusters to the choke is not perpendicular - & with a minor amount of vibration, the (left in particular) choke kept turning itself on. This probably accounts for the poor fuel consumption figures. But helped with the way the bike was running - lean.

    Gus has been running poorly all trip. Testing at Wellington suggested that we’d be okay this trip, but some jetting attention was needed. By Matawai I decided to just jump in & try to fix things. I decided to raise the jet needles one notch to help richen the mixture. Well it was getting dark, everyone was coming back from the ride, & well, I stuffed it up, & went leaner. I blame tiredness. So I had to tear it all apart again (by torchlight) & try again. Unfortunately that didn’t resolve things, so I packed up & left it for the morning.

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    Photo courtesy of ShewolfNZ


    MMMM 2012 Day Three:

    In the morning I put everything back to the way it was, & it still wouldn’t run right. A plug chop showed the right cylinder was seriously rich. So I replaced the plug, checked the plug lead & coil connections – nothing. Pulled the carb diaphragm to check for tears – possible, given that I’d pulled this at night – and found I’ve put the diaphragm in backward. Numb-nuts. Put everything back together, & it ran like it did all the way from Wellington. So the moral of the story is…

    By the time I sorted my shit out, everyone had left. So Jonny-no-mates rode out to conquer the Motu by himself. Actually, the delay had given the worst of the mist time to clear, & the day to brighten.

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    Looking back at the Motu township. Photo by Chris

    Stopped part way thru’ to take a couple of photos, & discovered the tail & brake lights had gone out. Decided to investigate why – and the group (who had taken a detour) decided to turn up right at the moment. I am sure left unchecked, Gus would have developed a reputation for unreliability…so I pretended it was a photo opportunity...

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    Nic

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    That Looks Like Fun

    Lunch stop at Opotiki. Decided to ride with Pomgolian back thru Murupara, Minginui, thru the Forestry section, and back to Napier. The ride thru forestry this time was considerably faster than the Saturday morning cruise.

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    Pomgolian

    Near Galatea we passed a run down house. A 3 or 4 yr old kid raced out to beside the road. I expected a wave. I got the ADV salute instead.:bluduh. You have to wonder how he'll grow up, & what sort of attitude his parents are instilling in him.

    Parted with Pomgolian at Supercheap Napier, after I replaced the tail light (GS’s have a reputation for eating these), then geared up for a night ride back to Wellington. Stopped at Dannevegas for Maccas, otherwise it was a straight ride home. Back at 9.15pm.


    STATISTICS
    1591.1kms for the weekend. 22.13 hrs ride time, so that averages 530.3km/day, & 7.37hrs per day. Fuel consumption to Napier 104.14 litres, 1282.5kms, so 12.2km/l :huh. Gus has a drinking problem...:freaky. Total costs for the weekend $652, excluding drinks at Matawai (paid in cash).
  16. bart-nz

    bart-nz Been here awhile

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    Yeah, that's me wedged in the rut on the DR, holding up the works. Who'd of though a DR was too fat.

    Nice write up. I was a bit annoyed not to do the whole ride, but with the amount of oil coming out of the shock by the time I got home, I think I made the right decision.
  17. innathyzit

    innathyzit AKA Woodman

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    Jatz.... Explain.

    Good write up btw.
  18. Padmei

    Padmei enamoured

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    Nice Nutso. What a bugger about the rough running. I hope you get it sorted & it is easy. You did do your timing chain aye?
    I wouldn't have left you all alone - I would have stood looking over your shoulder with helpful coments like "oh you sure you want to do that?" or "I don't think that went on there" The big tank came in useful on a ride like this.
  19. Pete-NZ

    Pete-NZ Been here awhile

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    great pics.........
    11.7km/l.... bloody hell.. got a hole in yer tank ?
  20. Eddieb

    Eddieb www.AdventureRidingNZ.co.nz

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    Geez, I did 550km's yesterday in my overweight underpowered 520i with the boot and rear seat full up and towing the bike on the trailer and got close to that economy.