Dreamweaver build-off: HD Fatboy

[anku94]

It's beautiful. The bike, and the mind-boggling precision. Wish I could understand half of those technical terms.

Wish you best of luck for the next steps.

[luky_13]

This is one of the most critical parts of a Twin cam build.

Using the cam holder, aligned the two dots on each cam and placed the chain. Alignment of the cams dictate the timing of intake/exhaust opening/closing. Placed the bearings on the cam ends, heated the cam plate for installation. Tightened the bearing retaining clamp.


Lubricated and installed the breather on the crank rod.


Next, placed the oil pump on the crank rod after installation of breather o-ring.


Installed the cam plate and torqued the 6 bolts to 13 nm.


Installed the rubbing block and then the gears to check alignment. Notice the 2 dots on the cam and crank gears.


Removed the gears, lubricated and installed the chain. Placed them back.


Using the locking tool, torqued the cam gear to 34nm and the crank gear to 24nm, then released the chain pre-tensioner.


Installed the gasket and the chrome cam cover. Lower end assembly complete

[sajjt]

Lucky, awesome work mate, Hats off to you.
I wish I could be there from the day one to see the whole thing in real flesh.

Looking forward to the day of final ride.
My best wishes

[luky_13]

Thanks mate. Coming up next...

• Houston, we have a problem ! - how we almost installed the wrong cylinder head
• Cylinder install
• Head install
• Rocker and chrome cover install

[lsp]

Hey luky
I have negligible knowledge of bikes and most of what you describe goes over my head, but please accept my best wishes. Hope this project comes out as you wish and in good time. I am sure all the hardwork, energy, time and resources you are pumping in, will definitely be rewarded very soon.

I am sure the bike will turn out be a stunner and will make you proud.

Waiting to see the final outcome soon.

[ricky_1605]

I missed the subscription to this thread but now i am hooked to it. I hope everything goes the way you want it. All the best mate.

[luky_13]

We were getting all the parts required for engine top end assembly in order when suddenly wisdom struck. Thankfully, we decided to strip the valves from the heads to inspect them one last time before locking them into eternity.

TOOLING
To remove valves we fabricated a Valve compression tool that would plug on a standard C-clamp to compress the valve spring thus aiding removal. Picked some old steel junk and machined the tool, this one was a breeze. Similar tools from JIMS or Harley cost $150 (INR 12K, landed). Considering the labour and material costs this one costed us below 500.


VALVE PROBLEM
We removed one of the valves and as suspected realized there was severe damage on the valve as well as the seating.

At this point in the bike build we were not ready for porting the head(s) (reserved for a later day, when we turbo charge the bike). So we had to replace the head with another one from our small inventory , the problem was this replacement was grey in colour. Next challenge, mask the head and a matching cylinder for powder coat. Removed both the valves and started the tedious process of masking.


Waiting for the head and cylinder to come back from powder coating, today evening. Fingers crossed !

[aargee]

@Luky13 - I'm under the impression that you're building the frame, swing arms, tank & so on; basically except the 88 cu in engine. But I see now that you're building that too or am I missing something? Pls help understand.

[luky_13]

Originally Posted by aargee

@Luky13 - I'm under the impression that you're building the frame, swing arms, tank & so on; basically except the 88 cu in engine. But I see now that you're building that too or am I missing something? Pls help understand.

Absolutely right, initially there was no plan to build a motor. We have one stock Twin cam, a couple of months back we happen to get another one (in parts) so could not resist the temptation, moreover this is a 96cu engine. To be honest, it has been one rocking but utterly enjoyable experience.

[aargee]

Originally Posted by luky_13

We have one stock Twin cam, a couple of months back we happen to get another one (in parts) so could not resist the temptation, moreover this is a 96cu engine. To be honest, it has been one rocking but utterly enjoyable experience.

Oh!!! That's excellent to hear; Tell me, is it going to be 96cu in or 96B twin cam engine? I wish you build the latter, but will eat out the brains isn't it? What's that your going to build?

[luky_13]

96cu unbalanced for now, a balanced engine is on the anvil for our next build. Yet to finalize the design and the components. The balanced ones are a bit more tricky.

[luky_13]

The head and cylinder just came back from powder coating, cleaned them and removed all the masking tape. The finish and the quality has exceeded my expectations.

Before and After




The pair


The remaining of the engine build - cylinder and head install, will continue in a couple of days.

[aargee]

You're absolutely right, the quality, fit & finish is way too good. I hope you're planning for stock air filter box & not screaming Eagle. Have you sourced those parts or making one by yourself? How about exhaust? I'm growing highly impatient, pls bear with me

[luky_13]

Originally Posted by aargee

You're absolutely right, the quality, fit & finish is way too good. I hope you're planning for stock air filter box & not screaming Eagle. Have you sourced those parts or making one by yourself? How about exhaust? I'm growing highly impatient, pls bear with me

As of now we have restricted ourselves to just fabricating tools but a turbo design and manufacture is around the corner.

[aargee]

Originally Posted by luky_13

As of now we have restricted ourselves to just fabricating tools but a turbo design and manufacture is around the corner.

Sorry, I couldn't understand much out here; did you mean turbo design as the air filter box design or something else? Because, I'm under the impression that the air filter box contains only a standard round air filter as part of intake manifold or does it contain something else? Or are you talking about screaming eagle? Pls educate. Tks.