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Author Topic: Home built propshafts?  (Read 3109 times)

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ferretjuggler

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Home built propshafts?
« on: March 30, 2010, 04:30:14 PM »

Anyone know how to?
Watched some program once, guy welded one using a lathe as a jig.
Not very user friendly to the lathe, but it worked.
Standard practice in India apparently, balencing done by trial and error, or not at all, depending on quality of local roads. :017:
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Mike Pavelin

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Re: Home built propshafts?
« Reply #1 on: March 30, 2010, 06:57:24 PM »

It can be done but if not perfectly true and balanced it will vibrate like buggery. Remember, in 5th gear it is spinning faster then the engine's crankshaft and it.s a heavy lump, so it really is a precision job. I have one that someone made for me, and it's never been 100% right.
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The Smiths

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Re: Home built propshafts?
« Reply #2 on: March 30, 2010, 08:49:47 PM »

I had a front prop retubed for my rear SYE - cost me £60 for it doing at a local propshaft place including balancing
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Nosebolt

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Re: Home built propshafts?
« Reply #3 on: March 30, 2010, 08:59:04 PM »

place that built my props charges 25 quid for balancing
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ferretjuggler

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Re: Home built propshafts?
« Reply #4 on: March 31, 2010, 05:41:36 PM »

place that built my props charges 25 quid for balancing

Thats sounding more like it :003:
I'm confident I can fabricate/weld a prop 99% straight and true, balencing weights will cover up the 1% error.
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Bulldog67

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Re: Home built propshafts?
« Reply #5 on: March 31, 2010, 06:00:33 PM »

names in the suppliers section please, maybe a route i need to go at some point
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ferretjuggler

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Re: Home built propshafts?
« Reply #6 on: March 31, 2010, 06:03:53 PM »

You gonna fabricate your own propshafts??????
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Nosebolt

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Re: Home built propshafts?
« Reply #7 on: March 31, 2010, 06:10:48 PM »

You gonna fabricate your own propshafts??????

 :hysterical: knowing our BD it will be out of an old "I" beam and some oposed door hinges then painted with swimming pool paint and a roller :hysterical: :hysterical: :hysterical:
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Dave69

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Re: Home built propshafts?
« Reply #8 on: March 31, 2010, 08:29:35 PM »

when you see one let go you realise it's good to let someone build one with the proper setup.
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Bulldog67

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Re: Home built propshafts?
« Reply #9 on: March 31, 2010, 09:33:24 PM »

You gonna fabricate your own propshafts??????

nope, be serious dood  :hysterical:  but we was discussing some idea about one of the projects and u said i had to get some made if i went that route, so seemed sense to sort out who does before this gets lost in the mists of time

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doublej

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Re: Home built propshafts?
« Reply #10 on: April 07, 2010, 07:45:29 PM »

For thoose that remember ponyracer I helped him build his front and rear. backyard built with no fancy balancing, and true up to 70 on the hwy.
Should you try it? Do whatever you think your skills can muster.........
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ferretjuggler

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Re: Home built propshafts?
« Reply #11 on: April 08, 2010, 09:42:12 PM »

Thrown props usually caused by people who wont listen to sound engineering advice, and think they can force a prop to drive at a ridiculous angles with large quantities of torque/rpm.
Dressing the yokes with a grinder might improve clearance, but it wont stop the prop winding up and breaking at its weakest point :003:
What you might get away with on a little 'zuk wont work on a V8 CJ :greggmo:
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