V Belt Crank Pulley

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration
Model T Ford Forum: Forum 2013: V Belt Crank Pulley
Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 09:15 am:

I have found where there is a V belt crank pulley on Snyders, but it's a whole kit including the fan and a water pump pulley and it's $105. I really just need the crank pulley. I've checked Langs/Texas T/Fun Projects since their websites are easy to browse. Does anyone else make/carry a V belt crank pulley? I'm about to pull up the Chaffin's catalogue, where else can I look?

At some point someone took my original flat crank pulley meant for a big flat belt and basically cut the outer belt surface in half and added a V belt pulley to the face using 4 machine screws. The problem is that the V belt pulley is very soft and if you tighten the screws up enough to compress the lock washers at all, it distorts the shape of the pulley, if you don't tighten them then they work themselves loose. I have a stock fan pulley but I run a 6 volt alternator for my head/tail/brake lights and horn. The waterpump went away when I got a new radiator.

Anyway, the current crank pulley threw two of the nuts and broke the head off of one of the screws and I'm just tired of fooling with something so "rigged". I may just buy the whole kit and put the waterpump and fan pulleys on the shelf. I won't ever need the waterpump one but I guess I may use the fan pulley if my current one ever decides to explode on me.


Top of pagePrevious messageNext messageBottom of page Link to this message  By samuel pine on Tuesday, December 10, 2013 - 09:58 am:

Lets see, trying to picture this. So whats the fan
pulley? Or is the whole set up Vee pulleys? And
they screwed a v pulley to a cut up crank pulley?
Oh boy. And they hung a gen or alt on the left side?
If me I would have machined a flat pulley for the
generator. If you choose not, machine a new crank
pulley which is freshman shop class. Have you checked with a local high school? You provide the
material they do it free atleast around here they do. If you do get stuck we can bang one out in 20
minutes.... visicoach@comcast.net


Top of pagePrevious messageNext messageBottom of page Link to this message  By Kenneth W DeLong on Tuesday, December 10, 2013 - 10:06 am:

Seth,Why not run a modern sepertine belt? If your reworking pulleys the modern will supply plenty of power and look almost stock.Bud.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 10:10 am:

The fan pulley is just the standard wide pulley for a flat belt. Right now the V belt just runs hugging the front ridge of the fan pulley.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 10:17 am:

Well, ultimately I guess I can replace both the crank pulley and the alternator pulley. I was just thinking I wanted/needed to stay with the V belt to turn the alternator since there is such low belt tension.

If it were on a modern car I would say "whoa that belt is loose" but on my T I can't really tighten the belt that much because it will start to bend the fan shaft. I can still turn the fan by hand right now, but the V belt grabs the alternator enough that it doesn't slip, at least not that I can tell. SO! I was thinking, I like how my fan runs, I like how my alternator runs, the only thing needing replacing is the crank pulley. Granted, if the $105 kit is the only thing out there then I may still come out cheaper with a new flat crank pulley, new flat alternator pulley, and new flat belt. Just not sure about how the flat belt will do on the alternator.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Strange on Tuesday, December 10, 2013 - 10:22 am:

Why not take the alternator to Auto Zone and have them swap on one of the newer V-groove pulleys? Then you could run a V-groove belt on the stock crank and fan pulleys and it would also be able to drive your alternator. Lang's carries V-groove belts.

http://www.modeltford.com/item/3964MG-28.aspx


Top of pagePrevious messageNext messageBottom of page Link to this message  By Daryl W. Becker on Tuesday, December 10, 2013 - 10:37 am:

Seth here is the setup I use , maybe give you an idea


Top of pagePrevious messageNext messageBottom of page Link to this message  By Daryl W. Becker on Tuesday, December 10, 2013 - 10:40 am:

crank pulley is serpentine belt grooved


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 10:49 am:

Hey Daryl, I saw where you make those brackets and I actually created the exact same thing on my own. Top bracket in front of the water outlet and lower bracket behind the fan arm just happened to line up perfectly with the alternator I have.

That looks like a good plan. V-groove belt pulley for alternator and stock crank pulley. I'll just have to scrub off any of the colorful print they like to add to the serpentine belts.

Thanks everybody!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 10:51 am:

Oh, well where can I get a crank pulley that is grooved like that? That'd be even better than a stock crank pulley.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Daryl W. Becker on Tuesday, December 10, 2013 - 10:58 am:

email me your address , I will get you one :-) :-)


Top of pagePrevious messageNext messageBottom of page Link to this message  By Walt Berdan, Bellevue, WA on Tuesday, December 10, 2013 - 01:39 pm:

Seth,

Sounds like Daryl has you covered.

On my speedster I wanted to run a belt driven alternator as well as a T fan with the original style bushing. My solution was to take the an aluminum crank pulley (the one I'd been using) and cut grooves in it to match a serpentine belt. I then got two narrow belts - one that I tighten to run the alternator and another that is rather loose that runs just the fan. Works good - no slippage on the alternator and no excess wear on the fan bushing.

Walt


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, December 10, 2013 - 01:59 pm:

That's a cool idea Walt. I'm going to try out what Daryl sends me. If it seems like too much for the fan I'll try your setup. This board is AWESOME.


Posting is currently disabled in this topic. Contact your discussion moderator for more information.
Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration