Designing a new 36-1 Trigger Wheel, Min & Max Sizes

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kalvinlk
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Post by kalvinlk »

Thanks for the picture: is that the wheel from the drawing you posted on the first page? Can you put your lower timing belt cover back on with that setup?

I was mistaken when I said waterpump drive pulley, as it is the pulley that drives the power steering pump. Sorry for the confusion.
scirturbo
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Designing a new 36-1 Trigger Wheel, Min & Max Sizes

Post by scirturbo »

Yes, if you talking about this one triggerwheel.jpg.
The crank pulley is mounted on top of the timing belt pulley with 4 allen bolts. So there's no need to remove the timing belt and cover. Just undo those 4 bolts pull the pulley off and attach the triggerwheel to it.
 
There's plenty of space between the pulley and the cover.
 
SFC
----- Original Message -----
From: kalvinlk (junk@hobbez.net)
To: megasquirt-msedis@msefi.com (megasquirt-msedis@msefi.com)
Sent: Monday, January 30, 2006 11:47 PM
Subject: Designing a new 36-1 Trigger Wheel, Min & Max Sizes



Thanks for the picture: is that the wheel from the drawing you posted on the first page? Can you put your lower timing belt cover back on with that setup?

I was mistaken when I said waterpump drive pulley, as it is the pulley that drives the power steering pump. Sorry for the confusion.



This post is at: http://www.msefi.com/viewtopic.php?p=98993#98993
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78Spit1500Fed
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Post by 78Spit1500Fed »

I have a suggestion;

If you're going to be paying to have a wheel fabricated, you won't want to do it more than once. To make the design more robust, leave the "missing" tooth in the drawing. That way, if you've botched the mounting angle or need the VR to sit somehwere else, you can grind off the tooth where you need it.

-Brian
Image
kalvinlk
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Post by kalvinlk »

Thanks for the tip Brian. Though, I believe I am changing my design. I was trying for "bolt on" but I kept coming up with reasons it wouldn't be as good as welded on. So, I redesigned a weld on pulley, with "keys" to center it on the pulley with no hassle. I'll post pictures of it soon.
JSchlappi82
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Post by JSchlappi82 »

I'm very interested in the solutions you come up with, i'm thinking about lasercutting a 36-1 trigger wheel too for my 1.8 16v KR-engine.

I saw your picture, (black background), but the one from scirturbo i can't see?

My question is: is the size of the wheel, size of the towers and the size of the gaps important? Or can it just be any diameter, 36 tooth minus 1?
And how thick should the wheel be?

I'm thinking about an adjustable wheel, bolt on to the original 4 bolts of the crank pulley, with slots, so you can turn the TDC gap anywhere you want. That isn't hard to do i think?

Greets, Joris. I'll post the autocad-file, when i have a final design...
Leistung Elektronik
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Post by Leistung Elektronik »

Hi everyone, i have designed a 36-1 and 12-1 trigger wheels for my msns extra.

They are 4.7 mm thick and around 150 mm width.

Here they are !!!!
Mikymar
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arnold
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Post by arnold »

Supercharged Austin Healey Sprite, Intercooler, spark control
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JSchlappi82
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Post by JSchlappi82 »

I'm trying to make an adapter for the ford-style 36-1 wheel, to fit the original VW 16V KR pulley...

I'm trying to make "slots" to make the wheel adjustable, but i can't figure out how to make slots in AutoCAD...

Anyone willing to help me with it?

Greets, Joris.
kool
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Post by kool »

I found this in my megasquirt directory. Hope it's useful.

ps: pic is huge (1700x2338)
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