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4Gears4Tires
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Joined: October 08, 2018
Posts: 3054
Location: MD
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 Posted: Mon Aug 24, 2020 5:50 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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Could you take that piece to a machine shop and get a few 1" dimples in it?
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'87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9620
Location: Western WA
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| Posted: Mon Aug 24, 2020 7:32 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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Ain't following you there.....what benefit are dimples?
They wouldn't let the rocks out.
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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syncrodoka
Samba Member
Joined: December 27, 2005
Posts: 12008
Location: Santa Cruz, CA
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| Posted: Mon Aug 24, 2020 8:07 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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| Dimple die AKA speed holes |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9620
Location: Western WA
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| Posted: Mon Aug 24, 2020 8:58 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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| syncrodoka wrote: |
| Dimple die AKA speed holes |
OK that would look nice too.
A 1" dimple die costs $33 on eBay, can't engage a machine shop for $33.
Or maybe I can fake it with sockets etc in the hydraulic press?
OK I'm gonna do that, one way or another.
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb
Last edited by Sodo on Mon Aug 24, 2020 9:22 pm; edited 5 times in total |
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4Gears4Tires
Samba Member
Joined: October 08, 2018
Posts: 3054
Location: MD
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| Posted: Mon Aug 24, 2020 9:07 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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My line of thought was the width of the work piece. My press has a 22" opening, which I think is fairly standard. If it's narrower than that, definitely get the die.
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'87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9620
Location: Western WA
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| Posted: Fri Sep 04, 2020 4:06 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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OK I cheapened out and tried to use a couple sockets for "dimple dies".
It sorta worked.
Here's a good one and a not-so-good one.
Was difficult to center one socket ontop of the other.
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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4Gears4Tires
Samba Member
Joined: October 08, 2018
Posts: 3054
Location: MD
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| Posted: Fri Sep 04, 2020 9:13 pm Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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Not bad for using what you already had laying around! Looks good.
_________________
'87 Syncro
Ferric Oxyhydroxide Superleggera Edition |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9620
Location: Western WA
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| Posted: Wed Aug 18, 2021 8:59 am Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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Doing its job.
Ida been in deep kaka without it.
Basically wouldn’t be able to drive in the rocks (as I did).
Concavity likely ushers the rocks towards the dimpled holes at the corners.
Also added a little 45deg ‘fairing’ to help it glance off or lift over a stump, rather than hook on it.
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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Crankey
Samba Member
Joined: July 11, 2004
Posts: 2659
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| Posted: Thu Aug 19, 2021 7:34 am Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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| swissarmychainsaw wrote: |
My humble suggestion would be to put 90 degree bends on the side of the sheet metal, and drill/tap hose in your square tube.
For a couple of reasons:
1. If you use this as intended, a nice flat bottom will slide over everything (christ!)
2. Not having you bolts all jammed up with mud and crud will make oil changes that much easier.
i have HATED bash plates on bikes that were bolted on from the bottom.
Please to be enjoy this non-technical, technical drawing:
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I like the bolts on the side, the further forward bolts could also work as hinge points so the plate could unbolt at the rear and hinge down from the front of you didn't want to completely remove it.
If you go 1/8" steel you could also add ribs of 1/8 wall 3/4 leg angle to make it stiffer and act as slide rails...1/2" leg angle would also help and give a tiny bit more clearance.
I've never seen exactly how the rear of these things attach, looks like it bolts to the moustache bar... Maybe I'll add some mount points to my 2wd bar for a skid plate setup.
Looks cool I bet it gives you some peace of mind.
Even with a steel oil pan I'd be super worried about the impact shock on all the bolts and threads into the aluminum case without a skid plate.
There's a shop down in south park where you can get big (1-1/4" or so) ball bearings free from a dumpster to use as dimple pushers. Some off cuts of steel tube with radius carved on the I.D. as a receiver die would be a good set of home made tools for dimple. |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9620
Location: Western WA
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| Posted: Fri Aug 20, 2021 6:30 am Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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Whoa Crankey, you’re willing to share your favorite industrial dumpster with me?
I’ll be your best friend. 🤣🤣
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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Crankey
Samba Member
Joined: July 11, 2004
Posts: 2659
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| Posted: Fri Aug 20, 2021 8:19 am Post subject: Re: Redesign Syncro skid bars to protect Smallcar Cast oilpan |
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| Sodo wrote: |
Whoa Crankey, you’re willing to share your favorite industrial dumpster with me?
I’ll be your best friend. 🤣🤣 |
Realistically, I can't take it all.
I posted before I saw page 2 and 3 so didn't realize your already done. Looks pretty nice and not too much hassel to live with when it's wrench time under there. My moustache bar is now bare steel so I'll be adding some points of connection like that before it goes back into my rig. |
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