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Old 11-28-2010, 03:20 PM   #31
concours
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Quote:
Originally Posted by Motomedic
+1

I usually recommend waiting until the rear cylinder fins are uncomfortably warm before riding away.

A tidbit of info to help illustrate this point- a Sportster/Buell engine will grow about .1" taller at operating temp. Clamp loads on the head gasket goes from your girlfriend sitting on your face to the whole zoo's cadre of elephants sitting on your face.
A HUNDRED THOUSANDTHS YOU SAY???.... I call shananigans on the that number. Upon what do you base that claim? Did you set up an indicator?
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Old 11-28-2010, 03:39 PM   #32
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I haven't actually set up a dial indicator, but from my personal experience, while I can deal with the hot parts (I have gloves ), I simply cannot get a rocker box out of the rear of a Sporty when they're hot. A Buell is a different story with nothing above it, but the clearance on a Sporty frame is reduced by a significant amount when it's hot.

As for the actual number, I was quoted that by one of HD's engineers at the Desert Proving Grounds while I was employed there as a mechanic. As to which one, my memory ain't that good! (there were a few of 'em) If ya REALLY need to know, I suppose I COULD actually measure it, but I really don't care enough myself to go through the hassle. My empirical evidence is enough to back it up for me.
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Old 11-28-2010, 03:45 PM   #33
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And I guess I forgot to mention the special tool, there, Curvin.

Buell, in their infinite wisdom, made our frames in such a way that the frames must be slightly spread to remove the isolators with the frame in place. They have designed a special tool to spread the frame the prescribed amount, but it's a PITA no matter what.

A enterprising guy () noticed you could remove the bolts and lift the frame off, leaving the isolators in place providing everything else was disco'd. And, installation is simply the reverse. Hold the isolators in place on both sides and lower the frame down over the mount block until everything lines up.
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Old 11-29-2010, 03:22 AM   #34
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I'll be picking up a nice swingarm and mount block next week.

He also has a speedo cable I'll nab and I'll see if there is anything else laying around.
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Old 11-30-2010, 10:55 AM   #35
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SCORE!!!!!!








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Old 12-01-2010, 07:14 AM   #36
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It's a bit hard to tell from the pic, but I'm not sure that's one of the updated steel swingarms or not- I'm thinking not, but I could be wrong. I thought the updated swingarm had a gusset to stiffen the shock actuating arm, as well as more gusseting around the inside, but either way, the alloy swingarm is much stiffer. If you can find one, that would be the one to run.

As for the front engine mount (the thingie that looks like an "A"), make sure you use NEW, STOCK (you can find equivalent replacements, but it isn't easy. Regular bolts don't cut the mustard here.) bolts to mount it to the head, and make sure the faces are flat where they bolt to the head and vice versa. When these break, it's usually because the mount faces aren't flat and the stress of that causes them to break.
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Old 12-01-2010, 09:58 AM   #37
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Quote:
Originally Posted by Motomedic
And I guess I forgot to mention the special tool, there, Curvin.

Buell, in their infinite wisdom, made our frames in such a way that the frames must be slightly spread to remove the isolators with the frame in place. They have designed a special tool to spread the frame the prescribed amount, but it's a PITA no matter what.
Here's a nice article on how to make your own tool:

http://danielcstarr-pages.blogspot.c...nique-for.html

A good thing about having the tool is you could use it to drop an isolator to do a broken belt replacement in an emergency situation.

Here's another article on how to replace the isolators without a special tool:

http://www.americanthunderbike.org/t...s/isolator.php

I used this technique on my S3 and it worked well, but it was a good full-day job by the time I'd lubed the swingarm bearings and got everything back together.

[edit] Here's a pic of the newer, highly desirable alloy swingarm; this one's been polished:

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Hughlysses screwed with this post 12-01-2010 at 10:27 AM
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Old 11-21-2012, 10:41 AM   #38
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Holy crap, an update. I stalled out a bit. I got fired up and started working on it again a couple months ago. I was close to finishing already, then I showed someone a picture of it last weekend. He is dying to buy it, and at my asking price. I've got to pick up a rear wheel bearing on Friday, finish some little stuff, then it's Bye Bye Buell.



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Old 11-24-2012, 09:22 PM   #39
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Wow, a two year hiatus. Glad to hear it running finally. What'ca getting next?
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Old 11-25-2012, 07:22 AM   #40
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Wow, a two year hiatus. Glad to hear it running finally. What'ca getting next?

I'm throwing my ex-race SV on the lift and getting it running again. After racing it, I rode it on the street for a while. My neck and back are all messed up. Rear sets and clip-ons are fine for me on the track (moving around a lot) but on the street I find them EXTREMELY painful. I was starting it one morning with a battery jumper and blew a fuse. I pushed it into a corner of the garage and it has sat there for three years. It was raced for 6 years straight and it has never had the heads off. It had also started jumping out of 5th and 6th on long straights. I'm going to make it comfy, sort of a big SM or adventure bike, ride it for a bit then rebuild the engine. I already have a complete replacement transmission in a box. Once the SV is where I want it I'll sell my KLR.

Many moons ago.



Currently.



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Old 12-11-2012, 04:19 AM   #41
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Quote:
Originally Posted by vtwin View Post
Wow, a two year hiatus. Glad to hear it running finally. What'ca getting next?
Quote:
Originally Posted by B.Curvin View Post
I'm throwing my ex-race SV on the lift and getting it running again.



(Long Duck Dong voice) I'm just so happy.


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