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Author Topic: harley service car  (Read 5425 times)
merv
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« on: July 18, 2017, 03:55:18 PM »

Has any one got any pictures of a harley service car without the body on it, i would like to see the leaf spring layout. I am thinking of other ways of fitting the axle. With the way my back is going im looking at other ways apart from hard tail
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
terry t
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« Reply #1 on: July 18, 2017, 04:31:13 PM »

Found this Merv. try searching Harley service car.
Its the back end of one

It looks like it is just the box that's on springs Huh

« Last Edit: July 18, 2017, 04:33:28 PM by terry t » Logged
merv
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« Reply #2 on: July 18, 2017, 05:53:18 PM »

Thanks Terry
Some of them are on actual leaf springs, i just cant find an open picture of one
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #3 on: July 18, 2017, 05:55:45 PM »

Has any one got any pictures of a harley service car without the body on it, i would like to see the leaf spring layout. I am thinking of other ways of fitting the axle. With the way my back is going im looking at other ways apart from hard tail
Like I said Merv,go the adjustable shocks route..much better than clunky heavy leaf springs Smiley
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stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #4 on: July 18, 2017, 05:59:14 PM »

It's definitely working on the leaf springs,but by Christ it's Fugly ? Undecided
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merv
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« Reply #5 on: July 18, 2017, 06:00:39 PM »

Cheers Stinkey
Im just looking at options
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
merv
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« Reply #6 on: July 18, 2017, 06:02:28 PM »

It's definitely working on the leaf springs,but by Christ it's Fugly ? Undecided


Your not wrong Cheesy
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #7 on: July 18, 2017, 06:04:33 PM »

If you want help you know where I am
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terry t
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« Reply #8 on: July 18, 2017, 06:31:06 PM »

The service car was tested with spring but didn't handle well so they used a hard tail setup.
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merv
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« Reply #9 on: July 18, 2017, 06:43:10 PM »

Thanks to the both of you
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
Olds
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« Reply #10 on: July 18, 2017, 08:23:47 PM »

The seat on my hard tail is far more comfortable shock wise than any bike I have had (that includes Harley). Four inches plus of vertical movement. Adjustable spring preload and fully damped. Easier than mounting the axle on springs.
If you want to spring the axle have you thought about quarter-elliptics
Just an idea.
« Last Edit: July 18, 2017, 08:27:07 PM by Olds » Logged

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merv
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« Reply #11 on: July 18, 2017, 09:20:25 PM »

Thanks Olds
Could you explain  quarter-elliptics, thats a new one on me
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #12 on: July 18, 2017, 09:46:56 PM »

Quarter-eleptics...you use the springs as radius rods as well as suspension basically ?
« Last Edit: July 18, 2017, 09:58:05 PM by stinkey » Logged

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Olds
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« Reply #13 on: July 19, 2017, 06:53:38 AM »

Yup.
Basic problem with traditional leaf springs ( semi elliptic) is you need the frame to finish quite some distance behind the axle for the rear shackle mounting.
Quarter elliptic are like semi elliptic cut in half with one end firmly mounted to the frame and the other end to the axle.
Usually used with a radius rod (each side) but I have seen setups where the springs are doubled up. That is they are fitted top and bottom of the axle so no radius rods are needed.
Quarter elliptic springs can be splayed, meaning that the mounts are wide apart at the axle but narrow at the frame. Another setup is to use them as transverse springs, in conjunction with four radius rods where the springs are solidly mounted to the frame above the diff.
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #14 on: July 19, 2017, 08:55:11 AM »

Sorry about the picture quality Merv ? Just google quarter-eleptics (images) and you will see much better..some good ideas,but can be quite heavy ? And you'd also have to fit some sort of shocks as well ? So it's going to look busy ?
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