239 crank pulley
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Logistics Pro
Joined: Feb 2005
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From: Upper Left Coast
Here's some pics of the thing....there's more in my gallery.
You can see that the fan pulley/bracket is different than your pictures.
Is this one the "car" fan pulley?
Also in the lower one you can see that the front groove in addition to being wider...it's also forward of the fan pulley quite a bit! I didn't get a perfectly vertical view but the fan pulley lines up with the "flat" between the wide and narrow grooves on the crank pulley.
You can see that the fan pulley/bracket is different than your pictures.
Is this one the "car" fan pulley?
Also in the lower one you can see that the front groove in addition to being wider...it's also forward of the fan pulley quite a bit! I didn't get a perfectly vertical view but the fan pulley lines up with the "flat" between the wide and narrow grooves on the crank pulley.
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Logistics Pro
Joined: Feb 2005
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From: Upper Left Coast
If I cannot find a good crank pulley and/or the correct fan pulley, I am going to find a narrow pulley of about the right diameter and cut the wide (broken) part off the crank pulley.
Then I'll clean up the cut area on the lathe and weld or braze the "new" pulley in place and true it up on the lathe!
Not my first choice of course, but it should work!
Then I'll clean up the cut area on the lathe and weld or braze the "new" pulley in place and true it up on the lathe!
Not my first choice of course, but it should work!
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Joined: May 2001
Posts: 736
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From: Owasso Oklahoma USA
That's quite a mismatch of parts there. I don't know what that fan pulley is from. It looks like it would line up with the 2 groove car pulley because it has no wide flat between the grooves. Here is a pic of a complete pulley setup from a Yblock car on my engine. The 3rd groove on the outside of the crank pulley is a separate piece that bolts on. You wouldn't need that part. I think you can tell the crank pulley 2nd groove would closely line up with your existing fan pulley and you could use 2 narrow belts. Ignore the outside groove on the waterpump pulley as you won't need it. Good luck finding the parts you need.
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Joined: Feb 2005
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From: Upper Left Coast
Alright! I give up!
Well couldn't find one and didn't want to do a lot of leg work....
So Here's what I did. I took that old busted crank pulley and sawed off the busted part.
I chucked it up in a lathe and cleaned out the inside enough to bolt in a different pulley. Here's the result!
Well couldn't find one and didn't want to do a lot of leg work....
So Here's what I did. I took that old busted crank pulley and sawed off the busted part.
I chucked it up in a lathe and cleaned out the inside enough to bolt in a different pulley. Here's the result!
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Logistics Pro
Joined: Feb 2005
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From: Upper Left Coast
I'll do that!
I'm not home right now and I won't be home for a couple of days.....
I am not expecting this fix to be permanent though. This pulley as you can see is from an Isuzu something-or-other.....I don't know if it will survive very long. I added the bolts in the center to help just that. A fan can take up to 17 hp or so to run it! I might even install a clutch behind the fan too!
More to come!
Rick
I'm not home right now and I won't be home for a couple of days.....
I am not expecting this fix to be permanent though. This pulley as you can see is from an Isuzu something-or-other.....I don't know if it will survive very long. I added the bolts in the center to help just that. A fan can take up to 17 hp or so to run it! I might even install a clutch behind the fan too!
More to come!
Rick
Originally Posted by 46yblock
Nice job Rick. Let us know how it runs.
Mike
Mike
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