cracked a piece off the crank pulley off- can it be fixed?

NolanJae · Nov 12, 2011

Trying to finish up my overhaul on my 460 gasser 221. I think ill call her christine! Getting ready to pull the pan to remove and inspect the oil pump which is at the root problem of the timming issues. posted a few questions a bit ago. I used a large pair of channell locks to turn the pulley (with belt on) to get to the 2 degree btdc mark and the locks slipped and i broke off a 3" long by 1/2 deep chunk on the front belt pully groove. The outside groove. I suppose the pulley is now out of balance and needs to be fixed or replaced. I suppose I need to remove the front portion of the tractor and pull the pulley. What fun after getting it all together. I hate to ask but can it be welded or do I need to replace? Can the pulley be used as is???

Allan in NE · Nov 12, 2011

Put the belt on and start 'er up. Bet it runs just fine.

Allan

NolanJae · Nov 12, 2011

but will it cuase damage over time besides tearing up the belt. I did run it to move her in the shop and I can see the belt bounces more.

Janicholson · Nov 12, 2011

It is probably too much loss of containment, and will require replacement. Sorry, it is a painful reality. Best of luck on the oil pump! Jim

souNdguy · Nov 12, 2011

what abouit laying a wet rag at the hub to soak heat, laying the piece in there, cardboard on the rad to protect it, and 3 plips of tack weld.. one at each edge, and one onthe lower outside?? If you just need to get by.

turn the heat up and let it bight good but 3 short welds.. you could use a rod for cast.. might help it be more successfull.

i just had to repalce the pulley on my C.. was fun.. ( well...

)

soudnguy

NolanJae · Nov 12, 2011

Thanks all again I'll track one down and do it right.

DeltaRed · Nov 12, 2011

If that groove doesnt have a belt on it,RUN IT!no worries.Your post is a little unclear.

Tom Fleming · Nov 13, 2011

I on 2 occasions have had broken pulley's repaired. One was with nickel rod and the other was with brass. Both are working fine. Pulley in each case was built up with weld or brass. Chucked in a lathe, and turned back down. Both were also balanced.

In the end, I probably broke even from a $$$ perspective. It all depends upon whether or not you have access to a good welder and machine shop.

realolman · Nov 13, 2011

(quoted from post at 11:35:43 11/12/11) Trying to finish up my overhaul on my 460 gasser 221. I think ill call her christine! Getting ready to pull the pan to remove and inspect the oil pump which is at the root problem of the timming issues. posted a few questions a bit ago. I used a large pair of channell locks to turn the pulley (with belt on) to get to the 2 degree btdc mark and the locks slipped and i broke off a 3" long by 1/2 deep chunk on the front belt pully groove. The outside groove. I suppose the pulley is now out of balance and needs to be fixed or replaced. I suppose I need to remove the front portion of the tractor and pull the pulley. What fun after getting it all together. I hate to ask but can it be welded or do I need to replace? Can the pulley be used as is???

What I'm about to say is probably considered sacrilege by some, but before I took that thing off, I would try gluing that piece back in with some 2 part epoxy. I think some of that stuff is stronger than cast iron.

Hey... what's it gonna hurt. try it and see what you think .. if it doesn't seem good enough, do whatever else you gotta do. I think it would end up being just fine.

CoopertownBob · Nov 13, 2011

I've been running one with two chunks out of it since 2008 with no ill effects. However, since the tractor is now in the garage for a major, it will get a new pulley.

sflem849 · Nov 13, 2011

(quoted from post at 19:16:24 11/12/11) Thanks all again I'll track one down and do it right.

I think you knew the answer the whole time

Fritz Maurer · Nov 13, 2011

I broke way more off mine than you did, pulling it off as directed in the I.T. manual; bearing splitter in the first groove. To get the rest of the pulley off, drill and tap 3 5/16" holes in the spokes and pull it off with a regular harmonic balancer puller. Do not use the bearing splitter method, there may be unseen cracks and you'll only pull the rest of the flange off. It is understood that the spokes are on an angle, just get the bit started anywhere you can and slowly move the drill position until you're drilling parallel with the crank shaft. Obtain 3 new 5/16" taps and use a new one for each hole because you're going to abuse the heck out of them , trying to get them started in those angle-drilled holes. Go find someone who can weld and give him the pieces. Far be it for me to tell another welder how to do his work, I think 3/32" nicalloy would be the best bet, only because it can be done quickly. More heat and time is involved in brazing, and I would be worried about overheating the balancer. Just my $.000002

cracked a piece off the crank pulley off- can it be fixed?

NolanJae

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Allan in NE

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NolanJae

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Janicholson

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souNdguy

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NolanJae

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DeltaRed

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Tom Fleming

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realolman

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CoopertownBob

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sflem849

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Fritz Maurer

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