where do you get head studs for the dio motors?
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Re: where do you get head studs for the dio motors?
One thing you could do is use all thread to figure out the length needed (assuming an answer isn't forthcoming in this thread).
But that would be all I used it for, no way I'd ride around with that stuff holding the jug on.
But that would be all I used it for, no way I'd ride around with that stuff holding the jug on.
1986 Spree w/ '87 SE50 motor
1985 Aero 50 w/ Dio motor: On Hold
1985 Aero 50 w/ Dio motor: On Hold
Re: where do you get head studs for the dio motors?
Why not? The stock bolts are #3 at best and all thread is gonna be that too.devenex wrote:One thing you could do is use all thread to figure out the length needed (assuming an answer isn't forthcoming in this thread).
But that would be all I used it for, no way I'd ride around with that stuff holding the jug on.
Bear 45/70
'83 Aero 80 X 3
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- Wheelman-111
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Re: where do you get head studs for the dio motors?
Greetings:
For some reason, 110 mm sticks in my head as the stock length. I can check in a little while. If that's correct I'll leave it there. If not I'll post up the correction.
Stock torque is ??12 Ft.-Lbs. I always put a little more if I have the studs all the way down into the block. Tall nuts at the top ensured it didn't strip with 15 ft.-lbs. Even with All-Thread, I never had a leak. YMMV
I re-did the cylinder head on Ms. Wheelperson's SAAB a few years ago. Male Torx bolts. Crank up to 150 Ft-Lbs. then turn an additional 90 Degrees. (Yikes!) I know there's a reason there, but I 'bout blew a bicep getting those on. Leakdown test passed. Phew!
For some reason, 110 mm sticks in my head as the stock length. I can check in a little while. If that's correct I'll leave it there. If not I'll post up the correction.
Stock torque is ??12 Ft.-Lbs. I always put a little more if I have the studs all the way down into the block. Tall nuts at the top ensured it didn't strip with 15 ft.-lbs. Even with All-Thread, I never had a leak. YMMV
I re-did the cylinder head on Ms. Wheelperson's SAAB a few years ago. Male Torx bolts. Crank up to 150 Ft-Lbs. then turn an additional 90 Degrees. (Yikes!) I know there's a reason there, but I 'bout blew a bicep getting those on. Leakdown test passed. Phew!
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
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Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: where do you get head studs for the dio motors?
I think the stock headbolt torque is 7.2 lb/ft if I remember right.
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Re: where do you get head studs for the dio motors?
Why all this guessing? The manual say 6-9 ft/lbs. You can't stretch any bolt or allthread at those levels.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
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'84 Aero 80 X 3
'85 Aero 80
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Re: where do you get head studs for the dio motors?
All bolts stretch when tightened. Here, read something useful:Bear45-70 wrote:Why all this guessing? The manual say 6-9 ft/lbs. You can't stretch any bolt or allthread at those levels.
http://www.portlandbolt.com/faqs/tensio ... ed-sort-of
Allthread always fails much quicker than headed bolts. More homework:
http://www.portlandbolt.com/faqs/headed ... vs-rod-nut
Rolled threads are 5x to 10x times stronger than cut threads. Read all about it:
http://www.ebcind.com/capabilities.php
Re: where do you get head studs for the dio motors?
You haven't done this stuff for a living or in a race arena. You just look s*** up on the net. any idiot can find incorrect or inappropriate info on the net. At 6 to 9 foot/pounds you do not possess the equipment to measure the stretch if it is in fact measurable. So shut the * up. If we were talking 100 to 200 foot/pounds or more, yeah maybe but in this case it is not enough to even be bothered with.JJ Joseph wrote:All bolts stretch when tightened. Here, read something useful:Bear45-70 wrote:Why all this guessing? The manual say 6-9 ft/lbs. You can't stretch any bolt or allthread at those levels.
http://www.portlandbolt.com/faqs/tensio ... ed-sort-of
Allthread always fails much quicker than headed bolts. More homework:
http://www.portlandbolt.com/faqs/headed ... vs-rod-nut
Rolled threads are 5x to 10x times stronger than cut threads. Read all about it:
http://www.ebcind.com/capabilities.php
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: where do you get head studs for the dio motors?
Wrong again - why am I not surprised? I've been working on airplanes since before you even learned to read! Anyway, I put up the net references so you could learn a basic fact about steel bolts while resting in your mom's basement, without drooling on someone else's library book: Steel bolts STRETCH when tightened. And when stretched too much, they always break at the THREADS! I'll bet you never even looked at the references, did you?Bear45-70 wrote:You haven't done this stuff for a living or in a race arena. You just look s*** up on the net. any idiot can find incorrect or inappropriate info on the net.
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Re: where do you get head studs for the dio motors?
maybe you should read your links more careful. this is what was said in there." many factors can affect this relationship, such as surface texture, rust, oil, debris, thread series and material type just to name a few. in the case of these scooter engines. its steel vs aluminum. less chance the steel bolt will stretch before the aluminum gives. again FAIL on your half.JJ Joseph wrote:Wrong again - why am I not surprised? I've been working on airplanes since before you even learned to read! Anyway, I put up the net references so you could learn a basic fact about steel bolts while resting in your mom's basement, without drooling on someone else's library book: Steel bolts STRETCH when tightened. And when stretched too much, they always break at the THREADS! I'll bet you never even looked at the references, did you?Bear45-70 wrote:You haven't done this stuff for a living or in a race arena. You just look s*** up on the net. any idiot can find incorrect or inappropriate info on the net.
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Re: where do you get head studs for the dio motors?
I first worked on airplanes in 1966. So I suppose I could read long before that, probably about 1950-51. I even worked on airplanes after the military. I quit working on airplanes in the early 1980's but in between I even work at a aircraft factory in the experimental department, so the airplane card ain't gonna get the job done.
Oh and reading you BS was unnecessary because, why you ask? I'll tell you why; these steel bolts and studs are threaded into ALUMINUM. Guess what fails long before the bolts or studs even start to stretch, yeah moron, that's right, the aluminum threads in the block. So a bolt or stud stretch discussion for this application is a waste of everyones time. Well maybe not yours of course, because of you having smarts enough to recognize the true when it hits you between the eyes.
I'm done the arguing with idiots, it is tiring because;
"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
And that ends this argument without getting drug down to your level.
Oh and reading you BS was unnecessary because, why you ask? I'll tell you why; these steel bolts and studs are threaded into ALUMINUM. Guess what fails long before the bolts or studs even start to stretch, yeah moron, that's right, the aluminum threads in the block. So a bolt or stud stretch discussion for this application is a waste of everyones time. Well maybe not yours of course, because of you having smarts enough to recognize the true when it hits you between the eyes.
I'm done the arguing with idiots, it is tiring because;
"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
And that ends this argument without getting drug down to your level.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: where do you get head studs for the dio motors?
Well, there you go. Couldn't have said it nicer if I triedBear45-70 wrote:"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
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Re: where do you get head studs for the dio motors?
You really don't get it. The facts aren't nice or nasty, they just are.JJ Joseph wrote:Well, there you go. Couldn't have said it nicer if I triedBear45-70 wrote:"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: where do you get head studs for the dio motors?
Old topic, but this is what it says in the manual.dv/dt wrote:I think the stock headbolt torque is 7.2 lb/ft if I remember right.
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Re: where do you get head studs for the dio motors?
Has anyone heard from Bear lately ??
I could use my manhood/ scooter choice/ workmanship/ intelligence, insulted right now and he is the best at it.
All kidding aside the guy probably forgot more than I know.
I could use my manhood/ scooter choice/ workmanship/ intelligence, insulted right now and he is the best at it.
All kidding aside the guy probably forgot more than I know.
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Elite 150 64 mph for sale.
Elite 250 77 mph. for sale.
Red Honda Grom, modded to 250cc, 87 mph.
GSXR 1000 168 mph. My new favorite, scooters seems way too slow now.
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Re: where do you get head studs for the dio motors?
oh Bear, whatever happened to that old fart
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