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getting ready to do the 30/70 conversion

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Old Jul 31, 2018 | 07:42 PM
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Default getting ready to do the 30/70 conversion

Hey, so i'm just getting the pieces together to do the 30t/70t conversion on my breakout, i've found a WICKED deal on an arlen ness contrast cut 70t pulley 1-1/8" 70t. so it'll be coming in the next week.

what else do I need for sure? my check list is as follows:
rear pulley spacer, 3/8"
rear pulley bolts
derby cover gasket
primary cover gasket
front pulley.
oil

anything else I am missing?

I'm also putting in a shift light at the same time, so that will have wiring run to pin 3? of the ECM

also, while i'm on the topic, derby and timing covers, they are all more or less interchangeable right? the only issue is bolt numbers?

basically all 5 bolt covers will fit all bikes which had a 5 hole?
this is the one i'm looking at:
https://www.ebay.com/itm/Timer-Timing-Cover-Derby-Cover-CNC-Motorcycle-Fit-For-Harley-1999-2014-Twin-Cam/192510502462?_trkparms=aid%3D111001%26algo%3DREC.S EED%26ao%3D1%26asc%3D20160908105057%26meid%3Dce5a0 e86d45a456391b74ed7d8dcd428%26pid%3D100675%26rk%3D 1%26rkt%3D15%26sd%3D192510502462%26itm%3D192510502 462&_trksid=p2481888.c100675.m4236&_trkparms=pagec i%3A966b04c6-9523-11e8-ad99-74dbd1809d05%7Cparentrq%3Af2ee76061640aa14483b9bb8 ffebb86e%7Ciid%3A1

also, for the front pulley, are they all the same, with the exception of the tooth count? can I use one from a sportster or street? there's some great deals on pulleys off of sportsters and streets, they look right, but I have no idea.
such as:
https://www.ebay.com/itm/Front-Pulle...%3A1#vi-ilComp
 

Last edited by weezl; Jul 31, 2018 at 07:48 PM.
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Old Aug 1, 2018 | 12:47 AM
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The front pulley is a real bitch to remove. Impact hammer wrench and heat. Many have resorted to drilling out the thin nut that holds the pulley in place.
 
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Old Aug 1, 2018 | 06:02 AM
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Front pulley can be from a trke. Baker makes them too, but I stuck with OEM fro a trke. Found on ebay for $50
 
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Old Aug 1, 2018 | 11:32 AM
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Originally Posted by DonN
The front pulley is a real bitch to remove. Impact hammer wrench and heat. Many have resorted to drilling out the thin nut that holds the pulley in place.
Oh really? I watched a video on it, looked like they are just super tight, but should come loose with a Big enough breaker bar. I'm hoping mine should come loose pretty easily (relatively) as it's only a 2015.

Originally Posted by splattttttt
Front pulley can be from a trke. Baker makes them too, but I stuck with OEM fro a trke. Found on ebay for $50
I've been looking, found a few 30t pulleys for $50 but I can't find any parts compatibility info on them. All I have found is that the trike does work, nothing about others working or not. I can't find any trike pulleys on eBay right now.

Originally Posted by DonN
The front pulley is a real bitch to remove. Impact hammer wrench and heat. Many have resorted to drilling out the thin nut that holds the pulley in place.
Oh really? I watched a video on it, looked like they are just super tight, but should come loose with a Big enough breaker bar. I'm hoping mine should come loose pretty easily (relatively) as it's only a 2015.

Originally Posted by splattttttt
Front pulley can be from a trke. Baker makes them too, but I stuck with OEM fro a trke. Found on ebay for $50
I've been looking, found a few 30t pulleys for $50 but I can't find any parts compatibility info on them. All I have found is that the trike does work, nothing about others working or not. I can't find any trike pulleys on eBay right now.
 

Last edited by ChickinOnaChain; Aug 13, 2018 at 11:10 PM. Reason: Multiple posts
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Old Aug 1, 2018 | 01:36 PM
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Weezl,
Make sure this fits your bike. I have a 2013 Fatboy Lo and bought the transmission pulley from HDNewCastle Online.
It was part number HD-83595-11
$63.04 Brand new
 
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Old Aug 1, 2018 | 01:55 PM
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You will need the special socket to get that front sprocket off.
 
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Old Aug 1, 2018 | 02:21 PM
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Originally Posted by ttyndall
Weezl,
Make sure this fits your bike. I have a 2013 Fatboy Lo and bought the transmission pulley from HDNewCastle Online.
It was part number HD-83595-11
$63.04 Brand new
Should fit, that's the part number I can find everywhere, but I have e no idea how to confirm if it will, or any of the other ones for that matter.

Originally Posted by ohioflhs
You will need the special socket to get that front sprocket off.
Special socket? I seem to remember from the videos I watched the front is just a t70 torq. Should be relatively cheap at my local princess auto (similar to harbour freight) if I don't already have one, I don't think I do though.



Does anyone know if this will fit? The price is right!
 

Last edited by ChickinOnaChain; Aug 13, 2018 at 11:11 PM. Reason: Multiple posts
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Old Aug 1, 2018 | 09:05 PM
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Here is a good thread on changing the front pulley. Different bike but process is the same. Also, your speedo and mileage will be off unless you can recalibrate.

https://www.hdforums.com/forum/dyna-...install-3.html
 
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Old Aug 1, 2018 | 10:42 PM
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Originally Posted by DonN
Here is a good thread on changing the front pulley. Different bike but process is the same. Also, your speedo and mileage will be off unless you can recalibrate.

https://www.hdforums.com/forum/dyna-...install-3.html
thanks, i'll read that thread through in it's entirety.

yes I know those will be off, but I've got a FP3, which has speedo correction in it, so I'll just run that right after the swap. Thanks for the help!
 
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Old Aug 2, 2018 | 01:30 PM
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Originally Posted by weezl
Should fit, that's the part number I can find everywhere, but I have e no idea how to confirm if it will, or any of the other ones for that matter.



Special socket? I seem to remember from the videos I watched the front is just a t70 torq. Should be relatively cheap at my local princess auto (similar to harbour freight) if I don't already have one, I don't think I do though.
The T70 is for the compensator. On the front pulley on the transmission, there is a long socket with a centering gizmo required to get that thin nut off the sprocket. It is very tight and will require heat or a strong impact driver to remove it.
 
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