wombat
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| posted on 20/5/13 at 04:15 PM |
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Alternator grooved pulley
As title, anyone got one kicking about before I go to the scrappy?
Can get bits machined to suit if needed.
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tims31
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| posted on 20/5/13 at 07:48 PM |
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Hey Wombat,
Yep I think I have one still attached to the alternator I removed from my Zetec, I will double check and let you know. Over in Wisbech at the start of
next month too if you can wait?
Build: http://www.martinsfurybuild.co.uk/
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tims31
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| posted on 20/5/13 at 08:13 PM |
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Yep I have two, one from a CVH Sierra and one from the Zetec 78mm od and 48mm od.
 
alternator-pulley
[Edited on 20/5/13 by tims31]
Build: http://www.martinsfurybuild.co.uk/
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wombat
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| posted on 20/5/13 at 08:49 PM |
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Great, any idea which size I need for silvertop 1998?
Ex karter too, 250 National back in the day....
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tims31
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| posted on 20/5/13 at 09:03 PM |
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quote:
Originally posted by wombat
Great, any idea which size I need for silvertop 1998?
Ex karter too, 250 National back in the day....
ha, I did 100 national, Rotax Max and 125 Gearbox in my time. Was also a MSA instructor too teaching and licensing people.
Not sure which pulley you need but think it depends on what alternator you fit but sure you can change the belt to suit.
the smaller one would probably be the better one as that's what I have on mine but mines a Blacktop.
Build: http://www.martinsfurybuild.co.uk/
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wombat
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| posted on 20/5/13 at 09:27 PM |
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Searches seem to agree 48mm is the one, unless someone pipes up........
Have a mate who works in Spalding that could pick it up.....
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big_wasa
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| posted on 20/5/13 at 09:36 PM |
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What alternator is it going on ?
Ford stuff is a 17mm shaft and the smaller denso alternators are a 15mm shaft but a bush is easy to make or buy.
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tims31
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| posted on 21/5/13 at 06:25 AM |
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I'll remove the 48mm od one from the alternator and measure the id so you know.
If your mate was to pick it up it would have to be in the evening or sometime over the weekend.
Build: http://www.martinsfurybuild.co.uk/
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tims31
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| posted on 21/5/13 at 08:42 PM |
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Have removed the pulley and is 17mm id.
Let me know if you still want it?
Build: http://www.martinsfurybuild.co.uk/
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wombat
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| posted on 22/5/13 at 08:06 AM |
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Good job we all see this as fun !
Alt is an LRA100 ( I am led to believe - no sticker) and last night I found on the net that the smaller pulleys were found to over stress this model,
apparently Tiger now supply a 68mm pulley to overcome this (Paul Toyne site).
So I guess I would be better off with the 78mm jobby you have...
Will need to check shaft size tonight, but can get a collar machined anyway with no probs
Thx for the input Warren, and......
On another note, my Trigger Wheel should arrive today, I intend to have a small recess machined on the crank pulley to keep it central, then drill and
tap it to fix.
So........... eventually my question, how do I determine the position of the Trigger Wheel on the crank pulley?
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big_wasa
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| posted on 22/5/13 at 08:16 AM |
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The lra will be a 17mm shaft.
Trigger wheel, what flywheel are you using ? sounds like your making things hard for your self. You can stick the wheel on in any place as long as you
can make a bracket to get the vr sensor in the position it needs to be.
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wombat
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| posted on 22/5/13 at 08:22 AM |
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Warren,
Its ok, I have changed the flywheel to the 1.8 so original sensor not used.
Yes, will need to make a bracket, but I have a plan :-)
Thx for that, just wasnt sure if I needed to mount the TW in relation to the keyway or anything, just double checking really, measure twice drill once
and all that !
Tims31
Will probably nip over at weekend if I can get chance, will be in touch.
W
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big_wasa
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| posted on 22/5/13 at 08:30 AM |
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Confused,
The 1.8 zetec flywheel will work fine with the vr sensor and you wont have to think about the timing being out. As its mounted in the flange of the
block its ridged and will not move or flex. ???
Or have you used the 1.8 cvh flywheel ?
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wombat
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| posted on 22/5/13 at 09:06 AM |
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B****r, then i have bought a TW that I dont need !
Oh well at least I dont have to buy another sensor, make a bracket or run wiring......
Thx buddy.
Its a learning process.......
Anyone need a brand new Trigger Wheel ??
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big_wasa
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| posted on 22/5/13 at 06:34 PM |
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Black or silver 2.0 fly's are the same as are 1.6~1.8. They are a different clutch size ie 220mm and 240mm but the dia of all the fly's
are the same.
as long as yours has the holes on the back you don't need a trigger wheel and you wont get the same accuracy or reliability either.
side by side as they just happen to be on the bench.
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wombat
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| posted on 22/5/13 at 06:46 PM |
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Thx I will have to whip the starter off to check.
Cheers
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big_wasa
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| posted on 22/5/13 at 07:06 PM |
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Only other thing you need to know is if the engine came from an auto or manual. The cps housing is different.
[Edited on 22/5/13 by big_wasa]
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