Re: Vespa + HPI Mini Rotor

Max (ツ) /
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Welp, I got her together. All the timing marks on the rotor were removed by machining so i had to start blind. I used a timing light and slow-mo on my phone to try to get it to fire at TDC. One I had it firing at TDC I rotated the crank to TDC and made a firing mark on the fan.

Next, I put a small amount of advance and gave it a shot. It was a dog. Waaay too little timing. I was actually pretty stoked that it would even fire and hold an idol, so I called it a success. Now to get more accurate about timing...

My hand drill is supposed to spin about 2000 RPM so I used this graph and a little math to set my timing at 23 degrees at what I was guessing was 2000 RPM (at the time, I was not considering that the drill was probably spinning lower than 200RPM due to the force it takes to spin the motor over)

That was wayyy too much timing. It got to 340 Deg on the stand pretty quickly and didn't want to stay idling.

When I pulled it apart this time to adjust the timing mark was like 30 degrees retarded. I was scratching my head until I pulled the rotor/fan and found some carnage:

2020-03-2f1.jpg

I'll have to build some clearance in for this wire retainer dooder, or maybe flip it to the bottom of the stator

2020-03-21.jpg

When the meltdown started, I'm guessing it shifted the fan's position on the rotor making my new timing marks useless. I'm now 3D printing a timing indicator that locates on the flat of the crankshaft. I'll use that to make some marks on the rotor so I'll be able to mount the new fan any which way without losing my timing marks.

Annotation2020-03-21071645.jpg

This sucker is really testing my patience. I look back to the days in Rat House where we'd mock some shit up after a few beers, cut/weld/grind/hack some spare parts together through the night and ride a new build to work that next morning.

Miss those days...

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  Vespa + HPI Mini RotorTopic by: Max (ツ) Max (ツ) 05/11/16 09:36PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 05/11/16 10:28PM
  Re: Vespa + HPI Mini RotorRe: Marc Friedman Marc Friedman 05/11/16 11:00PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 05/12/16 07:09AM
  Re: Vespa + HPI Mini RotorRe: Grande Guru Grande Guru 05/12/16 09:55AM
  Re: Vespa + HPI Mini RotorRe: Mike Boyd Mike Boyd 05/11/16 11:19PM
  Re: Vespa + HPI Mini RotorRe: ***VANILLA BLUNDER*** ***VANILLA BLUNDER*** 05/12/16 09:18AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 05/12/16 11:22AM
  Re: Vespa + HPI Mini RotorRe: Dave Steele Dave Steele 05/12/16 03:43PM
  Re: Vespa + HPI Mini RotorRe: «tyler » «tyler » 05/12/16 09:09PM
  Re: Vespa + HPI Mini RotorRe: Grande Guru Grande Guru 05/13/16 12:22PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 05/13/16 05:41PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 05/18/16 09:58AM
  Re: Vespa + HPI Mini RotorRe: MTech -> MTech -> 05/12/16 09:32PM
  Re: Vespa + HPI Mini RotorRe: «tyler » «tyler » 05/12/16 09:51PM
  Re: Vespa + HPI Mini RotorRe: MTech -> MTech -> 06/01/16 12:51PM
  Re: Vespa + HPI Mini RotorRe: maxim vdb maxim vdb 07/25/16 07:19AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 09/30/18 02:51PM
  Re: Vespa + HPI Mini RotorRe: Dirty30 Dillon Dirty30 Dillon 10/02/18 10:50AM
  Re: Vespa + HPI Mini RotorRe: JBOT Admin JBOT Admin 06/01/16 01:04PM
  Re: Vespa + HPI Mini RotorRe: JBOT Admin JBOT Admin 06/01/16 01:16PM
  Re: Vespa + HPI Mini RotorRe: MTech -> MTech -> 07/25/16 08:10AM
  Re: Vespa + HPI Mini RotorRe: maxim vdb maxim vdb 07/25/16 08:32AM
  Re: Vespa + HPI Mini RotorRe: maxim vdb maxim vdb 07/25/16 08:35AM
  Re: Vespa + HPI Mini RotorRe: maxim vdb maxim vdb 07/25/16 10:23AM
  Re: Vespa + HPI Mini RotorRe: Grande Guru Grande Guru 09/10/16 10:25AM
  Re: Vespa + HPI Mini RotorRe: Grande Guru Grande Guru 09/23/16 08:26PM
  Re: Vespa + HPI Mini RotorRe: Marc Friedman Marc Friedman 10/01/18 11:30PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 10/02/18 12:03AM
  Re: Vespa + HPI Mini RotorRe: Graham Motzing Graham Motzing 10/03/18 10:20AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 10/03/18 11:32AM
  Re: Vespa + HPI Mini RotorRe: scrot rash scrot rash 10/08/18 12:58PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 10/08/18 01:19PM
  Re: Vespa + HPI Mini RotorRe: scrot rash scrot rash 10/08/18 02:31PM
  Re: Vespa + HPI Mini RotorRe: scrot rash scrot rash 10/08/18 02:44PM
  Re: Vespa + HPI Mini RotorRe: scrot rash scrot rash 10/08/18 02:57PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 10/08/18 03:08PM
  Re: Vespa + HPI Mini RotorRe: scrot rash scrot rash 10/08/18 03:45PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 03/31/19 05:49PM
  Re: Vespa + HPI Mini RotorRe: Marc Friedman Marc Friedman 03/31/19 07:18PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 04/03/19 10:26PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 04/03/19 10:28PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 04/03/19 10:31PM
  Re: Vespa + HPI Mini RotorRe: Marc Friedman Marc Friedman 04/03/19 10:43PM
  Re: Vespa + HPI Mini RotorRe: Dave Steele Dave Steele 04/04/19 11:30AM
  Re: Vespa + HPI Mini RotorRe: Graham Motzing Graham Motzing 04/04/19 11:37AM
  Re: Vespa + HPI Mini RotorRe: EH FCC of the QCB EH FCC of the QCB 04/04/19 06:27AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 04/04/19 07:26AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 04/04/19 01:58PM
  Re: Vespa + HPI Mini RotorRe: Graham Motzing Graham Motzing 04/04/19 03:41PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 03/21/20 08:35AM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 03/22/20 12:02PM
  Re: Vespa + HPI Mini RotorRe: Max (ツ) Max (ツ) 03/22/20 06:43PM
  Re: Vespa + HPI Mini RotorRe: ᴛᴇʀʀʏ ᴅᴇᴀɴ ᴛᴇʀʀʏ ᴅᴇᴀɴ 03/22/20 11:01PM
  Re: Vespa + HPI Mini RotorRe: - Joe - - Joe - 04/01/20 08:40AM
  Re: Vespa + HPI Mini RotorRe: Graham Motzing Graham Motzing 04/01/20 09:05AM
  Re: Vespa + HPI Mini RotorRe: - Joe - - Joe - 04/01/20 11:53AM
  Re: Vespa + HPI Mini RotorRe: Daniel '' Daniel '' 04/01/20 09:51PM
  Re: Vespa + HPI Mini RotorRe: - Joe - - Joe - 04/02/20 09:34AM

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