where do you get head studs for the dio motors?

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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devenex
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Re: where do you get head studs for the dio motors?

Post by devenex »

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.
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Re: where do you get head studs for the dio motors?

Post by Bear45-70 »

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.
Why not? The stock bolts are #3 at best and all thread is gonna be that too.
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Re: where do you get head studs for the dio motors?

Post by Wheelman-111 »

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!
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Re: where do you get head studs for the dio motors?

Post by dv/dt »

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?

Post by Bear45-70 »

Why all this guessing? The manual say 6-9 ft/lbs. You can't stretch any bolt or allthread at those levels.
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Re: where do you get head studs for the dio motors?

Post by JJ Joseph »

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.
All bolts stretch when tightened. Here, read something useful:

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
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Re: where do you get head studs for the dio motors?

Post by Bear45-70 »

JJ Joseph wrote:
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.
All bolts stretch when tightened. Here, read something useful:

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
You haven't done this stuff for a living or in a race arena. You just look s*** up on the net. :jack: 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.
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Re: where do you get head studs for the dio motors?

Post by JJ Joseph »

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. :jack: any idiot can find incorrect or inappropriate info on the net.
Wrong again - why am I not surprised? I've been working on airplanes since before you even learned to read! :bowrofl: 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?
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Re: where do you get head studs for the dio motors?

Post by bakaracer »

JJ Joseph wrote:
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. :jack: any idiot can find incorrect or inappropriate info on the net.
Wrong again - why am I not surprised? I've been working on airplanes since before you even learned to read! :bowrofl: 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?
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.
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Re: where do you get head studs for the dio motors?

Post by Bear45-70 »

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.
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Re: where do you get head studs for the dio motors?

Post by JJ Joseph »

Bear45-70 wrote:"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
Well, there you go. Couldn't have said it nicer if I tried :b2t:
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Re: where do you get head studs for the dio motors?

Post by Bear45-70 »

JJ Joseph wrote:
Bear45-70 wrote:"Never argue with an idiot. He will just drag you down to his level and beat you with experience."
Well, there you go. Couldn't have said it nicer if I tried :b2t:
You really don't get it. The facts aren't nice or nasty, they just are.
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Re: where do you get head studs for the dio motors?

Post by johnny248 »

dv/dt wrote:I think the stock headbolt torque is 7.2 lb/ft if I remember right.
Old topic, but this is what it says in the manual.
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Re: where do you get head studs for the dio motors?

Post by Johnniespeed »

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.
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Re: where do you get head studs for the dio motors?

Post by burnt_toast »

oh Bear, whatever happened to that old fart :drama:
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