sneak peak at the new diesel bike build

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dethmachinefab
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sneak peak at the new diesel bike build

Post by dethmachinefab » Wed Feb 29, 2012 11:40 pm

Building another 3cyl bike. Extensive engine work, going in a rigid frame bobber style bike. It will be 1000cc, turbocharged, around 100hp, turn 6000rpm, and blow the tire off. :twisted:

Thats all the hints for now. Stay tuned.
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dry sump fin 1.jpg

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coachgeo
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Re: sneak peak at the new diesel bike build

Post by coachgeo » Thu Mar 01, 2012 4:49 pm

6000 rpm?? dats pushing it?? What is OEM redline?

Question is... RPM is king on existing bikes.... but is that what we should be aiming for? Would we be better off putting the energy of trying to raise RPM in these diesels instead into matching gearboxes to the ranges normal for diesels?

Henk
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Re: sneak peak at the new diesel bike build

Post by Henk » Thu Mar 01, 2012 8:07 pm

Push up the rpm is possible but limited. The engine starts using much more fuel compare the power delivery.
Small dieselengines best torque is about 1800-2200 rpm for some reason. So you have to put your energie in gearboxes and/or bigger chainwheels.

You are showing a nice dieselengine to us.

I was busy with an Hatz dieselengine few years ago, but max rpm 3000 wasn't enough for me.
I think they terminate the production, I can't find any.

Look what a beauty.
Attachments
3cyldiesel3pers.jpg
Hatz 3 cyl,

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Fri Mar 02, 2012 1:01 am

This is a build for absolute performance, fuel consumption being a non issue. The injection pump will be delivering 3 times what was max fuel possible from the factory pump. Reground cam will make alot of power at 5000-6000rpm and designed for turbocharging. There is alot of work going into the engine to try and keep it together, and not turn the pistons into molten metal. 8)

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sat Mar 10, 2012 3:26 am

Here are a few more pics.

Injection pump with alot of internal modifications to flow a crazy amount of fuel. Injectors opened up to flow more fuel.
Attachments
badass pump and injectors.jpg
pump and injectors

pietenpol2002
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Re: sneak peak at the new diesel bike build

Post by pietenpol2002 » Sat Mar 10, 2012 1:32 pm

Now you're scaring me here. I have this involuntary reaction of squeezing my legs together in anticipation of the moment at which that screaming little rattler sneezes the big one. Maybe flak vests for the legs and titanium cup for the family jewels. In some states I believe I'm mandated to report you for abusing that little thing, aren't I?
Now that we've addressed my fears, I can't wait to see your project unfold. Do keep us posted.
Ron
Goshen, IN USA

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sat Mar 10, 2012 9:01 pm

Dry sump scavenge pump.
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Photo0503.jpg

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun Mar 18, 2012 5:58 pm

Billet aluminum flywheel, to handle the 6000+ rpm.
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Photo0500.jpg

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Tue Apr 03, 2012 1:01 am

degreeing reground cam
Attachments
Photo0522.jpg

alexanderfoti
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Re: sneak peak at the new diesel bike build

Post by alexanderfoti » Tue Apr 03, 2012 8:51 am

This looks like its going to be awesome! Cant wait.

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun Apr 08, 2012 4:19 pm

Drilled bolt holes and cut center of flywheel. Now i have to balance it to the same (out of balance) as the factory flywheel.
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Photo0520.jpg

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Dougy
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Re: sneak peak at the new diesel bike build

Post by Dougy » Sun Apr 08, 2012 8:53 pm

Looking real good mate, one little thing...more pics, more pics, more pics! :D
IGNORE THE RATTLE AND ENJOY THE RIDE

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Thu Apr 26, 2012 1:37 am

Turbo has arrived.
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Photo0555.jpg

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Thu May 03, 2012 12:23 am

Started machining my wheels 21x3.35" front and 16x5.5" rear.
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Photo0581.jpg

Curtis in Texas
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Re: sneak peak at the new diesel bike build

Post by Curtis in Texas » Fri May 04, 2012 3:22 pm

Hey DMF, good to see you're posting your build here too!
I've been following your Thread over on Pirate.
(I'm the Tiger Builder guy you jelped with a question yesterday.)

Gonna be a nice build folks.
This guy knows his stuff!

Curtis
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You just can't stay as long...

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coachgeo
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Re: sneak peak at the new diesel bike build

Post by coachgeo » Fri May 04, 2012 4:13 pm

Curtis in Texas wrote:...(I'm the Tiger Builder guy you jelped with a question yesterday.)

Gonna be a nice build folks.
This guy knows his stuff!

Curtis
Uh-oh ..... another hardcore off-roader from pirate in here. Don't tell me .. DMF your on Advrider too? :mrgreen:
All good... just poking a stick at ya.

former Mod Pirate4x4 (MB forum)
George

Curtus.... just to confuse you. Im working in TN now. CO didn't work out

sno-bro
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Re: sneak peak at the new diesel bike build

Post by sno-bro » Sat May 05, 2012 12:38 pm

I took a look at your previous bike on the other forum. You're the MAN!!! 8) That is on bad ass bike!

I'll be following with great interest your new build!

sno-bro

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun May 06, 2012 10:52 pm

Finished the windows in the wheels. Now i am machining hubs.
Attachments
Photo0586.jpg

dethmachinefab
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Posts: 62
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun May 06, 2012 10:58 pm

Good to see you here curtis. Awaiting your build thread! :flipoff2:

dethmachinefab
I luv the smell of Diesel...
Posts: 62
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun May 06, 2012 11:19 pm

Test fitting the wheel on the hub.
Attachments
Photo0588.jpg

Curtis in Texas
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Re: sneak peak at the new diesel bike build

Post by Curtis in Texas » Mon May 07, 2012 2:27 pm

dethmachinefab wrote:Good to see you here curtis. Awaiting your build thread! :flipoff2:
I've got another Skunk WOrks Bike in the making that I can't divulge!

But after that one is through I'll start on the Tiger. I'm still trying to learn a few things before I tackle it.


Another stupid question. Since you have adjusters on the back wheel, how will you mount the engine and transmission.
What I'm asking is the engine going to be firmly mounted and the transmission on adjusting slots? Or are the transmission and engine going to be non adjustable and just use tensioner pully on the Primary?


I'm leaning toward a solid mounted engine and transmission and using a tensioner on the primary. (If I go belted promaty like yours I'm thinking a Ford Big Block Belt tensioner would work easy. I used one on a gas to diesel engine swap in a Motorhome I did a few years back for an aux ps pump and it works flawlessly.)

Although making the transmission mount on slots would be easy. Just not sure if that would create more problems later.
It only cost a little more to go first class,
You just can't stay as long...

dethmachinefab
I luv the smell of Diesel...
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Tue May 08, 2012 12:31 am

The cat bike uses a fixed engine, an adjustable idler to take some slack, no primary plate, and trans on slots. This bike will use a primary plate. Engine non adjustable, trans on slots and primary plate holding the fixed distance for proper belt tension. This plate keeps the flywheel pulley and clutch pulleys properly located under load. You would be suprised how much a frame can flex, and can also tear the studs from the bottom of the trans in high load situations.

Curtis in Texas
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Re: sneak peak at the new diesel bike build

Post by Curtis in Texas » Tue May 08, 2012 2:29 am

Thanks. I have been thinking about building an engine and transmission cradle and mount them on. And will use some motor and transmission mounts I picked up from the Isuzu Warehouse in Atlanta a few years ago. It would be easy isolate the frame from the engine cradle with these special mounts.

I'm thinking of using a spring loaded belt or chain tensioner mounted to the cradle for the primary. Sometinh like the cars use to keep the water pump/ alt belt tight on their engines.

I want to make the cradle where it will bolt onto the stock Tiger frame using the standard engine and skid plate mounting points.
I do a lot of tubing bending.


How'd the real axle spindle turn out on yours? Still working on it?
The last time I rode a hard tail I was recovering from a broken back and shattered leg, so it was not a pleasant experience. I had just learned how to walk again. Took me a year and a half to get to that point and a friend let me take his Suicide Shift Pan Head Chopper for a spin. You guys are tougher than I am!
It only cost a little more to go first class,
You just can't stay as long...

pietenpol2002
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Re: sneak peak at the new diesel bike build

Post by pietenpol2002 » Tue May 08, 2012 10:46 am

I wonder if using a spring tensioner whether you wouldn't have much the same experience as alexanderfoti reported having using the same. Spring tensioners in applications such as serpentine belts are only loaded in one direction. However, in either primary or final drives they also experience loading under hard deceleration. When that occurs I might think the spring tensioner is depressed and the chain goes slack on the opposite side. And then the fun begins. Or maybe some medication for the spring tensioner.
Ron
Goshen, IN USA

alexanderfoti
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Re: sneak peak at the new diesel bike build

Post by alexanderfoti » Tue May 08, 2012 8:36 pm

Just thought I would chime in, I have "fixed" my tensioner now, the wheel is now bolted in place rather than held in place with a spring, this way the adjuster works correctly. I am sure I could have put a stronger spring in there, or played with spring tensions, but I thought I would jump the chase and just fix it. I must keep an eye on wear etc but seems ok now.

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Wed May 09, 2012 12:40 am

Yes, a spring loaded tensioner will cause issues on deceleration. Hard downshifts will slide the rear tire and that force is certainly enough to move the tensioner. Fixed adjustable tensioners work best. You can design one possibly with a small piston and a grease fitting, pump grease until properly tensioned, just a neat idea.

Today i bored, rough cut and installed bearings in the rear hub. The large part will be cut down to size (between rim and pulley) after to obtain proper wheel/trans/pulley alignment.
Attachments
Photo0589.jpg

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Sun May 20, 2012 12:19 am

Cut rear perimeter rotor cut, siting mocked up on some bolts. Will sit more inboard when standoffs are made.
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Photo0608.jpg

dethmachinefab
I luv the smell of Diesel...
Posts: 62
Joined: Tue Jan 12, 2010 2:37 am
Location: New York

Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Thu May 24, 2012 1:43 am

A little more brake progress.
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Photo0617.jpg

dethmachinefab
I luv the smell of Diesel...
Posts: 62
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Wed Jun 20, 2012 1:02 am

Pistons are here!
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Photo0646.jpg

dethmachinefab
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Re: sneak peak at the new diesel bike build

Post by dethmachinefab » Wed Jun 20, 2012 1:04 am

Back wheel is done.
Attachments
Photo0639.jpg

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