An extremely boring tale...... - Victory Forums - Victory Motorcycle Forum
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post #1 of 265 (permalink) Old 11-30-2016, 09:37 PM Thread Starter
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Default An extremely boring tale......

Called into the engineers today and the torque plates are bolted up to the first barrel and it's on the lathe getting machined out in stages ready for the fitting of the big bore sleeves!
Told ya it was boring....
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post #2 of 265 (permalink) Old 12-01-2016, 02:12 AM
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Man
MbX that is just so good to see this, seen it 10x on car engine's but not on motorcycles, soon you'll be riding your Victory again mate...

The titel threw me off track, until I opened the thread.. Funny.

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post #3 of 265 (permalink) Old 12-01-2016, 05:05 AM
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Nothing boring about that it's very cool machinists are artists in their own way.
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post #4 of 265 (permalink) Old 12-03-2016, 03:24 AM
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How much material is left on side walls after it is bored out?

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post #5 of 265 (permalink) Old 12-03-2016, 04:31 AM Thread Starter
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How much material is left on side walls after it is bored out?
Well it's machined out to fit the new sleeves, in one of the pics there's a stock 100" barrel and sitting to the left of it a sleeve, might give you some idea of the difference.
I'll call around to the workshop after the weekend and get an after pic to compare.
There's a fair bit of alloy coming out as you can see in the pic.
Mark, the engineer machinist mechanic wizard said it's very grainy alloy and hard to get a smooth finish with it.
He's gonna take at least 3 cuts to gradually get it down to an interference fit of 4.5 thou, least that's what I think he said.
You'll notice the sleeve is stepped to hold it in place too.

I once destroyed a Leyland V8 which are a 1962 Buick alloy engine, overheated it the day before when a hose blew. Then the next day I was driving it to the Gold Coast Indy Car race and gave it a huge rev and smoked up the tyres showing off.
Then BANG clatter clatter clatter!!!!
On post mortem pull-down it was revealed the block had been sleeved out to 308 cube but no step on the sleeves, the heat had shifted the sleeve downwards and when I gave it a big rev a ring slipped past the top of the sleeve and then tore the top clean off the piston!!!

That's why they're stepped, it's a very involved machining process, that's probably why you have to send your barrels in to Lloydz.
Thankfully they made an exception for us cos of distance and freight logistics and the fact I have a really good old school engineer doing the highly specialised job.

100" and 106" share the same bore size and pistons, the difference is in the stroke of the engines.
Same kit takes 100" to 109" or 106" to 116"
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Victory Vegas 2010
100 cube / 6 speed

Lloydz 109"cube big bore
Lloydz. 495 cams kit
Lloydz Torque Tube Intake
Freedom Performance Slash pipes
Lloydz timing wheel @4 deg. and IAV
Barnett Scorpion clutch
Barnett +6"cable
Lloydz Primary plate.
PCV
'Powerhouse' Dyno-tuned.
Progressive 465 rear shock
RaceTech Gold Valves and Progressive fork springs.
18" XC front wheel
1 3/4" (45mm) 'Burleigh Bars'
Stebel air horn.


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post #6 of 265 (permalink) Old 12-03-2016, 11:57 AM
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we used to do big bore on HD's and would wind up with a one pound coffee can full of fine shavings like you see in above photos.

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post #7 of 265 (permalink) Old 12-04-2016, 04:37 PM
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Looks like a cool set up

For a part shaped like that though wouldn't it be easier to do on a mill or a jig borer using a boring head?

Well you make the equipment you have available work for what you need it to do!

Very cool! I love old school machining

It really is a dying art


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post #8 of 265 (permalink) Old 12-04-2016, 06:19 PM
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Default Boring but cool.

Years ago we use to use a boring bar on tractor blocks. It never made them perfect. I use to send my blocks I would overhaul into the machine shop. The old guys at the shop went ahead and use the boring bar to bore out the blocks, still remember seeing them sleeve the cylinders that were to far gone, pretty cool. I just did not trust that old boring bar or me doing it, ha, ha. Looks quiet pricey the machining for your cylinders. Would love to see a dyno run after you get it all broke in and dialed in. Hope the engine work meets your expectations. Good luck. Send more pictures. Picture of the old pistons next to the new pistons would be cool.

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post #9 of 265 (permalink) Old 12-04-2016, 06:34 PM Thread Starter
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Quote:
Originally Posted by Speedblue View Post
Years ago we use to use a boring bar on tractor blocks. It never made them perfect. I use to send my blocks I would overhaul into the machine shop. The old guys at the shop went ahead and use the boring bar to bore out the blocks, still remember seeing them sleeve the cylinders that were to far gone, pretty cool. I just did not trust that old boring bar or me doing it, ha, ha. Looks quiet pricey the machining for your cylinders. Would love to see a dyno run after you get it all broke in and dialed in. Hope the engine work meets your expectations. Good luck. Send more pictures. Picture of the old pistons next to the new pistons would be cool.
I'll see what I can do, I plan on visiting the engineer shop at their lunchtime today, which is about an hour from now.

Victory Vegas 2010
100 cube / 6 speed

Lloydz 109"cube big bore
Lloydz. 495 cams kit
Lloydz Torque Tube Intake
Freedom Performance Slash pipes
Lloydz timing wheel @4 deg. and IAV
Barnett Scorpion clutch
Barnett +6"cable
Lloydz Primary plate.
PCV
'Powerhouse' Dyno-tuned.
Progressive 465 rear shock
RaceTech Gold Valves and Progressive fork springs.
18" XC front wheel
1 3/4" (45mm) 'Burleigh Bars'
Stebel air horn.


Gold Coast,
Australia.
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post #10 of 265 (permalink) Old 12-04-2016, 07:26 PM
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Quote:
Originally Posted by ditech View Post
Looks like a cool set up

For a part shaped like that though wouldn't it be easier to do on a mill or a jig borer using a boring head?

Well you make the equipment you have available work for what you need it to do!

Very cool! I love old school machining

It really is a dying art


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