Question about 2003 Harley Davidson FLSTC Heritage Classic

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Need expanded view of harly davidson twin cam gear case

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Order a V-Twin catalog, they're free.

Posted on Sep 25, 2009


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2003 Fat Boy diagram of twin cam support plate

Hi, Michaelpadilla for this scenario you will need your service, parts fiche, and owners manual if you can not find the best tool you ever bought for your Harley, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at Good luck and have a wonderful day.
2003 Fat Boy diagram of twin cam support plate Google Search
Cam Replacement on Harley Davidson Twin Cam including Pushrod Removal...
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Aug 16, 2017 | 2003 Harley Davidson FLSTF Fat boy

3 Answers

Does this 2002 Harley have a tappet oil screen? if so, where?

Hi Jeromy, there is no part number for one and there is none present in an exploded view of the engine cases so the answer would be no.

Mar 25, 2015 | 2002 Harley Davidson FXDL Dyna Low Rider

1 Answer

A exploded view

Exactly what 'exploded' view are you looking for? and what year Ultra?
I have the Clymer manuals for Twin Cam 99-03 and Touring series 06-09.
Please repost with the year and exact view /diagram you are looking for so I, and or others can help you.

Aug 20, 2014 | Harley Davidson FLHTCUI Electra Glide...

1 Answer

Starter pinion gear replacement for 2005 street glide

Hi Lonni, it's too bad you can't find the very first and best tool you ever bought for your Harley Davidson. Despair not, for a mere $6.50 you may be able to download another one from the website below and good luck. Harley Davidson Manuals Mark Workshop

Jun 20, 2012 | Harley Davidson FLHX Street Glide...

2 Answers

How to quiet lifter noise

It depends on how noisy the lifters are. Your engine is a pushrod engine and there will be some noise. Generally is just a small ticking noise due to running clearance in the rocker arm bushings and such. The tappets (lifters) in your engine are hydraulic just like the tappets in a pushrod automobile engine. If your tappets are really making a noise, like a can of rocks, you might not have enough oil pressure or the roller on the end of the tappet that runs on the cam may be bad. If the tappet is the reason for the noise, the only thing you can do is replace them. If the roller on the end locks up, it will damage the cam lobe that it runs on as well meaning the cam will have to be replaced as well.

Good Luck

Aug 21, 2011 | 2003 Harley Davidson FLHTC Electra Glide...

1 Answer

2000 roadking efi we are changing over to gear driven cams we have the work done now we cannot seem to get the timing to go right we have the marks all line up but i guess we are not finding the true...

You have two "timings" to set on your Twin cam. The cams must be correctly timed to each other and then the combination must be timed to the pinion gear that drives the cams.

Now, Twin Cam engines are NOT my expertise but in all other Harley engines, the timing mark that you time the cam with has nothing to do with top dead center position of the crankshaft. There is a specific mark on the pinion gear that the cam has to be timed to or the timing will be incorrect. Knowing the way Harley does things, the same is true with the TC engine.

Good Luck

Oct 02, 2010 | Harley Davidson FLHR-FLHRI Road king...

1 Answer

On my 2003 fat boy all oil from tank is in engine and won't return whats the cause ? runs real rough

Ok, I'm not exactly sure what the problem is on your Twin Cam but I can assure you that it is oil pump related. One the earlier models with the external pump, you had two pumps in one body. One pump was a "feed" pump that pumped oil into the engine. The other pump was a "scavenger" pump that pumped oil out of the engine back to the tank.

When Harley designed the Twin Cam engine, they employed a better design of pump inside the engine. It's located in the gear case along with the cams. I do not know too much about the Twin Cam engine as I specialize on the older Evolution, Shovelhead, and Panhead engnes. The older engines had a breather gear that used the crankcase pressure built up inside the engne to blow the oil from the crankcase into the gear case. I don't know if the Twin Cam still uses that method of getting the oil out of the crankcase and into the gear case.

So, with my limited knowledge of the oil pump on the Twin Cam, I'd say that this is the problem. You need to find someone that is familiar with the construction of the pump. It may be that the entire pump is bad or something as simple as a sheared pin.

Good Luck

May 30, 2010 | 2003 Harley Davidson FLSTF Fat boy

1 Answer

Need to see dye gram how to remove gear box for dyner wide glide

On a Big Twin, you can remove the geartrain from the transmission case without having to remove the gearcase from the engine. Basically, the "guts" come out of the case.

You'll have to disconnect the battery, remove the clutch and all other inner primary gear, remove the exhaust pipes, drain the oil from the transmission. Remove the top cover of the transmission, remove the shifter cam mechanism, remove the "trap door endplate" of the right side of the transmission along with the gear.

A service manual is recommended if you plan on doing this job yourself.

Oct 08, 2009 | 2000 Harley Davidson FXDWG Dyna Wide Glide

1 Answer

Harley davidson how to change tenttionners

Is your bike STOCK?? Have the Cams been changed? Do you have Stock Cam CHAINS & TENSIONERS, or is it updated to GEAR DRIVEN Cams? Either way, you have a Cam and or Lifter Problem, and if you are not a Harley Mechanic with access to Shop type tools and Equipment, then I suggest you take you Harley to a reputable repair shop for diagnosis and repair. DO NOT CONTINUE TO RIDE WITH THIS PROBLEM, IT WILL NOT FIX ITSELF and will only cause you MORE EXPENSIVE DAMAGE. Good Luck! -Dr.Mark

Sep 28, 2008 | Harley Davidson Harley-Davidson Motorcycle...

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