Murray JetCruiser

Discussion in 'BUILD OFF 14 - CLASS 1 - BUILD JOURNALS' started by ParkRNDL, May 1, 2019.

  1. RustyGold

    RustyGold

    Joined:
    Jul 2, 2015
    Messages:
    2,576
    Location:
    Mid-Willamette Valley, Oregon
    So...on a lark I decided to reinforce my claim, above, while at work... running two machines...in under 15 minutes. This is proof of concept only...no templates or layout...just a quick eyeball job (I'm not a sheet metal guy).

    Found a piece of stock...
    IMG_20190718_182456608.jpg

    Cut off a chunk...
    IMG_20190718_182920450.jpg

    Shaped one end on a grey wheel...the other on a belt sander...
    IMG_20190718_183551364.jpg

    Tah and dah :grin:,
    Jason
     
    Scribble, Chad T and kingfish254 like this.
  2. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    Nice! I think I know someone with a grey wheel...
     
    RustyGold likes this.
  3. RustyGold

    RustyGold

    Joined:
    Jul 2, 2015
    Messages:
    2,576
    Location:
    Mid-Willamette Valley, Oregon
    The belt sander is really better at removing material...and contouring as well as you can place the material flat on the guard and use your finger as the center part of the radius. Grey wheel is fantastic for the finish work, however.

    These are what I used...both are fairly cheap pickups at garage sales, etc...(need to replace this grey wheel, soon :grin:)...

    IMG_20190718_201246090_1_1.jpg
     
    Last edited: Jul 18, 2019
    Scribble, Chad T and ParkRNDL like this.
  4. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    My build journey took a side excursion today...

    I have been doing some shakedown runs with the JetCruiser, and I LOVE the way it rides. It feel solid, no rattles or creaks, and it's a surefooted heavyweight that feels confident bombing over curbs or down rocky trails. But there's a weak link: the Falcon rear coaster hub. It feels sloppy and soft, and the brakes are not exactly confidence-inspiring. I tried tightening the bearing cones, but they're as snug as I can get them without binding and the wheel still feels junky. I got to wondering how hard it would be to lace in a new hub, though wheel building has always been mystical voodoo to me.

    Then I watched this video. Man, she makes it look easy...

    And then on our Thursday night ride, I talked to our ride organizer, who is also our resident wheel guru. If we have a broken spoke or a wobble or flat spot, he's the go-to guy. I asked him if lacing a wheel was really as easy as the video made it seem. He told me that he first figured out wheel lacing on his own as a 14-year-old kid in the '80s, before the benefit of YouTube. Basically, he took a wheel apart and spent 3 days figuring out how to get it back together like the good one he had sitting next to it. I decided if a 14-year-old kid could figure it out on his own, I could certainly follow a good set of video directions to get it right.

    And so I found myself sitting on the kitchen floor with an orphan 36-hole 20" wheel with a HiStop coaster hub and some implements of destruction:
    20190720_212529.jpg

    After a few minutes, I was down to a rim, a hub, 4 piles of 9 spokes, and 4 piles of 9 nipples.
    20190720_215913.jpg

    With the video going on my phone as a reference, here's the first round of 9 spokes:
    20190720_221146.jpg

    Flip it over, eyeball the right starting hole, and do the next round of 9 spokes:
    20190720_222137.jpg

    Then it's just thread from the inside, over, over, under, skip a hole for the next 9:
    20190720_223215.jpg

    And finally, flip it over and repeat for the remaining 9.
    20190720_224238.jpg

    Holy Hades, it seems I have laced a wheel correctly. I know that's no big deal for many of you guys, but it's a big step for me, even if I still have to take it to my guru friend or the LBS to get it tightened up and rideable.

    Now I think I want to find a Bendix red band or a 70/76 for this build, based on some words of wisdom from @rev106 , even though this bike will probably never see the likes of a Coaster Brake Challenge. I am also entertaining the notion of going freewheel, as I know where to find some knockoff MX1000s for cheap. And here I thought I was getting near done...
     
    Last edited: Jul 21, 2019
  5. OddJob

    OddJob

    Joined:
    Mar 26, 2012
    Messages:
    6,351
    Location:
    Maplewood, MN
    Nice work on the wheel! I do recommend an experienced wheel guy with a good truing stand to do the final tightening / truing of the wheel. It's easy to get 'hops' otherwise, meaning vertical not side to side.

    You will find out that hub flanges vary, as well as the spoke length to accommodate those differences. That's when it gets tricky!
     
    KJV and ParkRNDL like this.
  6. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    Oh yeah, I figured it would require an expert to do the final adjustment. The friend of mine who does it told me that when he worked at a bike store years ago, they sent him to "wheel building school." He also mentioned the spoke length issue, and he told me that there are spoke length calculators online. He actually has access to a machine that will cut a spoke to whatever length and thread it, which comes in handy for replacing a broken spoke or two, but I guess you wouldn't want to do it for a whole wheel.
     
    RustyGold and OddJob like this.
  7. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    latest updates: grips and headbadge
    20190721_094826.jpg 20190721_094407.jpg 20190721_090303.jpg
     
  8. OddJob

    OddJob

    Joined:
    Mar 26, 2012
    Messages:
    6,351
    Location:
    Maplewood, MN
    We have a spoke cutter at our shop. I did all the spokes for the 4 spd hub laced into my 57mm rim on Trans-MIG-RaT. It's pretty slick, but as with any specialized tool, takes the right touch.
     
    ParkRNDL likes this.
  9. kingfish254

    kingfish254 CHECK OUT MY SALE THREAD FOR COOL STUFF! Pro Member

    Joined:
    Aug 31, 2009
    Messages:
    25,523
    Location:
    Historic Savannah
    Nice work on the trusses and the badge!
     
    KJV likes this.
  10. KJV

    KJV

    Joined:
    Aug 5, 2010
    Messages:
    3,486
    Location:
    Southern Ohio
    What he said. :41:
     
  11. Brian macumber

    Brian macumber

    Joined:
    May 8, 2018
    Messages:
    571
    Location:
    Lakeland fl.
    +2 and on the paint :113:
     
  12. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    Mail call. New shoes. Trying something different.
    20190724_214047.jpg

    Directional. Oooooh, fancy.
    20190724_214117.jpg
     
  13. handyandy1100

    handyandy1100

    Joined:
    Jun 27, 2017
    Messages:
    850
    Location:
    Willow Spring, NC
    Watched the same video the other day too. Makes me want to give it a try too.
     
    ParkRNDL likes this.
  14. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    If you have an old rim you're not gonna use anyway, why not? Go for it!
     
  15. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    Shakedown cruise. Really digging this thing.
    20190725_213012.jpg
     
    Scribble, restodave, OddJob and 4 others like this.
  16. GuitarlCarl

    GuitarlCarl

    Joined:
    Sep 14, 2013
    Messages:
    5,826
    Location:
    Bradley Illinoiz
    I do like shake down cruises... :thumbsup:

    Carl.
     
    SoulGarageOH and ParkRNDL like this.
  17. SoulGarageOH

    SoulGarageOH

    Joined:
    Jul 24, 2013
    Messages:
    580
    Location:
    Holy Toledo
    I especially like shakedown cruises for doughnuts at cool little doughnut shops.


    Sent from my iPhone using Tapatalk
     
    OddJob likes this.
  18. Chad T

    Chad T

    Joined:
    Sep 7, 2014
    Messages:
    3,087
    Location:
    Columbus OH
    Nice job on the wheel. Bike looks good next to that '66 Fastback...:)
     
  19. OddJob

    OddJob

    Joined:
    Mar 26, 2012
    Messages:
    6,351
    Location:
    Maplewood, MN
    Dude, we have to hang sometime. You had me at "doughnuts at cool little doughnut shops". :21:

    Seriously, one of these days, I'm going to load up a couple of my rat rods, and make a tour of the Central portion of the USA. Lots of builders in WI, MI, OH, IL that I could hit all in one trip.

    Get that doughnut shop itinerary in order! :D
     
    SoulGarageOH and ParkRNDL like this.
  20. ParkRNDL

    ParkRNDL

    Joined:
    Sep 13, 2006
    Messages:
    691
    Location:
    southern PA
    Yeah, Krumpe's is a local legend. We just got a Krispy Kreme in town and some folks are pretty outraged.

    Thanks. Our rides generally get a pretty eclectic mix. Besides mine, last night we had a Manta Ray with 3-foot apes and a 4-foot sissy, two teenage girls on their full-race BMX rides, three 5-speed Fastbacks and a Jamis Earth Cruiser, among others.
     
    Chad T likes this.

Share This Page