Rebuilding a crank

Drifter562 · Post by **Drifter562** » Mon Oct 06, 2014 3:37 am

Hers my issue i have two cranks for an Afo5e engine, one crank has a stripped drive face side and the other has a stripped flywheel side, how would i go about rebuilding it. could I just switch the sides on them and wouldn't i have to true it afterwards?

cruzingratiot · Post by **cruzingratiot** » Mon Oct 06, 2014 5:35 am

lots of vidos on youtube
https://www.youtube.com/watch?v=bTxYxkGjI6U

Wheelman-111 · Post by **Wheelman-111** » Mon Oct 06, 2014 10:02 am

Greetings:

First you're going to need a really Big-* hydraulic press. Honda-san has huge ones, along with Jigs that pre-align all those pieces to near-absolute True. The rest of us have to rely on precision measuring tools, runout gauges, and a nautical sextant and deadblow hammers, usually wielded by toothless guys named Gus or Crusty with greasy-gray braided hair. The flywheels have to run Parallel and in perfect synch around the crankpin. Not sayin' it can't be done, but there's a lot of work and perhaps some Luck involved. I've read little here, but quite a bit of cussin' on Harley forums. Yes, the venerable V-Twins also use a 5-piece, pressed single-pin crank, albeit in Giant (4" stroke!) sizes.

paulpauly7 · Post by **paulpauly7** » Mon Oct 06, 2014 2:18 pm

what sort of performance cranks can you get for the se/05 (variated AF05E).

paulpauly7 · Post by **paulpauly7** » Mon Oct 06, 2014 9:52 pm

price? Theres a place here that does teflon stuffer inserts on stock cranks its about $100 a crank .Your crank and a stuffer in it would be nice in my old malossi AF05E .

Drifter562 · Post by **Drifter562** » Tue Oct 07, 2014 12:23 am

Who knows what size die I could use to fix the splines for the flywheel side and those are the same crankshafts I thought I saw on racing planet, I might be interested in having a motor built, your alot closer than Hawaii and thanks wheelman I knew the goonies and honda had some underworld pact on crafting cranks anyways my options are buying a crank or die tapping the splines, does anyone have any experience chasing threads

Kevinstonge · Post by **Kevinstonge** » Wed Oct 08, 2014 5:06 pm

Does the jasil crank have the same stroke as the stocker? This is the first I've heard of this crank.

808EERPS48 · Post by **808EERPS48** » Fri Oct 10, 2014 3:26 pm

critical... rebuilding your crank could be catastrophic if done wrong... would just replace it gl

veedubh20 · Post by **veedubh20** » Mon Oct 27, 2014 3:24 am

Get a dio motor and crank shaft spline end is strong where 17mm nut go left outter drive face.

curtis966 · Post by **curtis966** » Tue Oct 28, 2014 12:52 pm

graphite9 wrote:I have ONE of those jasil cranks, sitting on my desk, $130 shipped.

Wish you would have had this when I built my 65cc polini af05 I would have been all over that!

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