displaying posts 1 to 8 of 8

Author Subject: Stepper Motor Breakdown
Welly Forum Admin

Location: Brizzle

Registered: 11 Jan 2004

Posts: 21,797

Status: Offline

Post #1
Been a while since i could get my hands on one but finally did it.

Sorry about the picture quality. I'm shit LOL
Click for bigger pictures


This is what it starts life as


After drilling the casing off, this is whats inside


4 wires on the bottom VERY fragile


After un screwing the bit that slides in and out this is what your see



Then to split it down again, bottom piece with magnet on the left, top piece on the right


The bottom bit



This is the slider screwed into the magnet. The magnet spins and pulls the slider down by tightening the thread.


The top bit. On this one i notice it was cracked and was restricting the movement in and out of the sliding pin. THATS why this one failed


Crap pictures unfortunately. But you can see that this model has 2 groves to keep it striaght when it moves in and out. Never seen this design before and i reckon it could be the best design.


Full exploded view


Now make your own mind up as to why they fail.
I still would like other models that have failed to see if there is any difference and see how they fail Thumbs up

________________________________________

Life is a lie. The only certainty of which is death. Go live and enjoy yourself. The clock is ticking

Vrs power!!
Posted 19th May 2007 at 21:40
fletch

Track Head

Location: The nearest Shell garage

Registered: 12 Jun 2004

Posts: 12,273

Status: Offline

Post #2
Youve been busy Yes What phase did this one come off?
Posted 19th May 2007 at 21:48
rich-6

Seasoned Pro

Location: Bottoming out!

Registered: 06 May 2007

Posts: 5,306

Status: Offline

Post #3
Like all males Big grin Do you enjoy taking expensive things to pieces?

In pic 11 is that piece ceramic? Is it the engine vibrations that destroy it?

________________________________________

Cool

RIP Pete Sims
Posted 19th May 2007 at 23:43
rich_w

Seasoned Pro

Location: Havant, Hampshire

Registered: 29 Jul 2004

Posts: 5,400

Status: Offline

Post #4
Those tits are awesome

Pearl necklace time Love

________________________________________

lynxpowerengineering.co.uk

Contact me - rich@lynxpowerengineering.co.uk

Tel: 07732 822546

Parts in stock:

- Alloy engine pullies - crank, idler, tensioner
- PAS pump relocation kits for throttle body users
- Uprated big-end and main bearings
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- Supercharger kits - DIY + drive-in, drive-out conversions
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Posted 20th May 2007 at 00:53
rich_w

Seasoned Pro

Location: Havant, Hampshire

Registered: 29 Jul 2004

Posts: 5,400

Status: Offline

Post #5
BTW Good effort on the stepper motor - its amazing how many bits are in something so small!

________________________________________

lynxpowerengineering.co.uk

Contact me - rich@lynxpowerengineering.co.uk

Tel: 07732 822546

Parts in stock:

- Alloy engine pullies - crank, idler, tensioner
- PAS pump relocation kits for throttle body users
- Uprated big-end and main bearings
- Billet steel flywheels - superlight, 3.8KG
- Roller bearing wishbone bushes
- Supercharger kits - DIY + drive-in, drive-out conversions
- SAENZ and PEC forged con-rods, Wossner forged pistons
- ECU unlocking for all Marelli 1AP ECU's - GTI-6, Rallye, 106, Saxo etc etc
- Fuel Swirl Pots
- Re-conditioned Cylinder Heads
Posted 20th May 2007 at 00:54
Welly Forum Admin

Location: Brizzle

Registered: 11 Jan 2004

Posts: 21,797

Status: Offline

Post #6
quote:
Like all males Big grin Do you enjoy taking expensive things to pieces?

In pic 11 is that piece ceramic? Is it the engine vibrations that destroy it?

No it's plastc

________________________________________

Life is a lie. The only certainty of which is death. Go live and enjoy yourself. The clock is ticking

Vrs power!!
Posted 20th May 2007 at 02:57
justinaccurate

Seasoned Pro

Location: Cov

Registered: 29 Apr 2006

Posts: 14,425

Status: Offline

Post #7
I see you got it ok Thumbs up

Its out of a phase 3 Wink

Welly you think that crack in the plastic was why it wasnt working too good?
Posted 20th May 2007 at 03:11
Welly Forum Admin

Location: Brizzle

Registered: 11 Jan 2004

Posts: 21,797

Status: Offline

Post #8
quote:
I see you got it ok Thumbs up

Its out of a phase 3 Wink

Welly you think that crack in the plastic was why it wasnt working too good?

Yup was stopping it was twisting and jamming it's self up. Was caught hard to pull out when it was jammed. Thats why it cracked.

Oh yeah and thanks to Nev Thumbs up

________________________________________

Life is a lie. The only certainty of which is death. Go live and enjoy yourself. The clock is ticking

Vrs power!!
Posted 20th May 2007 at 03:14

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