Topic: Rear Wheel : This just made my heart sink.

[Black 750K8]

I think it looks worst than it really is . At $700.00 most people want a frame kit anyway on these bikes so that would not bother me at all. The rear wheel no big deal I have a K8 bought the whole setup except the axle with a 130 90 17 tire in good shape for under a $100. shipped. I don't think you will have any problems at least breaking even if you fix it and sell down the line. Take a deep breath and don't over react. What puts a lot of people in the whole is the cosmetic stuff Same thing applies to women. 

[KC_Northstar]

Looks like you have a 77-78 rear wheel.  Below is a picture of the hubs off my K2.
Your hub is shaped totally differant where the sprocket mounting studs are.
Also look again at the link posted by black750k8nk
http://www.cyclexchange.net/index%20pics/picture%206.JPG

Your looks like the one on the right which is the 77-78

KC

[scottly]

I just measured the K7 carrier the same way, from the back to the inside face of the sprocket (which appears to be the most accurate way), and came up with the same 40mm. The K7 outside spacer is 25mm instead of the 18mm the OP posted.

[Black 750K8]

I just measured the K7 carrier the same way, from the back to the inside face of the sprocket (which appears to be the most accurate way), and came up with the same 40mm. The K7 outside spacer is 25mm instead of the 18mm the OP posted.

About the same here my K8 is 24.90mm You may want to look in to that. The step spacer is 42mm overall total.

[edwardmorris]

scottly (or anyone) can you please post the measurement of the diameter of the K7+ wheel hub where the cush/sprocket mount couples into? If the spacer is smaller, I'm hoping just replacing the cush will fix the issue. More I look at the fishce and other K2s, more I'm convinced that at the very least, the cush is off of a K7+

[scottly]

Hey Ed, I think we have established you have a K7/8 17" rear wheel and sprocket carrier with earlier spacers.  From what I've read, the early carrier will fit right in to the late hub?

[scottly]

Ed, please post a pic of the front sprocket; the PO may have installed an off-set front sprocket to compensate for the K7/8 rear wheel and carrier.

[edwardmorris]

Ed, please post a pic of the front sprocket; the PO may have installed an off-set front sprocket to compensate for the K7/8 rear wheel and carrier.

Not a very great one but here is one I took a while back when taking off the chain. Look, there is a fuse in there for some reason From the rust and snug fit, it doesn't look like it's an offset one, but I'll let you take a look, and also I'll grab a better pic tomorrow, now that the engine is out of the frame.

[edwardmorris]

I think it looks worst than it really is . At $700.00 most people want a frame kit anyway on these bikes so that would not bother me at all. The rear wheel no big deal I have a K8 bought the whole setup except the axle with a 130 90 17 tire in good shape for under a $100. shipped. I don't think you will have any problems at least breaking even if you fix it and sell down the line. Take a deep breath and don't over react. What puts a lot of people in the whole is the cosmetic stuff Same thing applies to women. 

Ignore the thread title, its an old one, when I'd only had the bike for a few days and was second guessing the decision. Now, its just a fun challenge, I will do all I can to get this completed by spring. I've contacted Gordon and he's agreed to help me out with a frame kit if I need it. I also have a piece of the frame rails from Tews that I might just get welded on instead. I guess a kit is a better idea, and I'll be getting to that soon.

[scottly]

Ed, please post a pic of the front sprocket; the PO may have installed an off-set front sprocket to compensate for the K7/8 rear wheel and carrier.

Not a very great one but here is one I took a while back when taking off the chain. Look, there is a fuse in there for some reason From the rust and snug fit, it doesn't look like it's an offset one, but I'll let you take a look, and also I'll grab a better pic tomorrow, now that the engine is out of the frame.

That looks like a standard non-offset front sprocket.

[Stev-o]

Here is a frame kit for sale....


http://forums.sohc4.net/index.php?topic=131813.0

[edwardmorris]

Thanks for the input everyone. I grabbed 72 carrier, hopefully it will fit correctly in the hub and I can call this issue solved. Would be much better than hunting down a whole wheel.

[754]

Good Lord..eleven weeks to figure out which wheel parts you have..  This bike will take some time.

[edwardmorris]

Good Lord..eleven weeks to figure out which wheel parts you have..  This bike will take some time.

Haha, yes, hypernoob working excessive overtime to keep up with it. Definitely taking its time. On the plus side, I have some time off coming after Thanksgiving, fully dedicated to rebuilding the engine. A lot of questions incoming. Seeing how awful this bike has been on the outside, one can only imagine what's on the inside. Looking at the engine, the top end was definitely cracked open at least once judging from the Alan key bolts, but the bottom end seems intact. It would not surprise me in the least if I have to replace everything on the top end. I hope you guys are around this holiday to help me out. I want the engine cleaned, inspected and put away while I'm off work (I REALLY hope 10 days is enough time for this) so I can go back to getting killed by work and resuming chassis work in small chunks. If you have any suggestions on what I should own up front before getting into the engine in terms of tools and parts, PLEASE, post in my project thread, would help immensely!

[madmtnmotors]

Good Lord..eleven weeks to figure out which wheel parts you have..  This bike will take some time.

 I want the engine cleaned, inspected and put away while I'm off work (I REALLY hope 10 days is enough time for this)

Now THAT'S optimism! 

[Black 750K8]

HA HA we have been talking about K7-K8s so much I freak when I saw those two bolts on that sprocket and that is the spare fuse holder for a K6

[scottly]

On the plus side, I have some time off coming after Thanksgiving, fully dedicated to rebuilding the engine.!

Does the engine need rebuilding??? Have you done a dry/wet compression test or measured the oil pressure with a gauge? Have you removed the oil pan and inspected it for metal and rubber chunks? If it ain't broke, don't fix it. 

[edwardmorris]

It used to start by spraying a bunch of starter fluid in the spark plug holes, and even with that, at random, one or two of the four don't fire. With a fluke, it started once firing on all four, I shifted into first, let the clutch out and went no where. I'd rather open it up and take a look, fix it up the right way at least for my peace of mind. Plus, I'm learning a lot. This is like a training project for when I have the time and money to pick up one of them British beauties from the 50s (Ariel Square Four anyone?)....