what do you use?

[showcrop]

I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

 

[glennster]

would a bearing splitter work.?

 

[Bob]

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

I have NO idea what a "ten in one chain" is, but I'm GUESSING you need a tool similar to this Lisle "exhaust manifold spreader".

You didn't mention what the distance between the sprockets was, though.

 

[Russ from MN]

If you have to use force to push the sprockets apart, the chain will probably be too tight and it will ruin something, bearings etc. I'm not sure what your working on but maybe you could put an offset (half) link in and run it awhile? They make tools for pulling chain ends together but on smaller chain a piece of sash cord around a few rollers works well, like a block and tackle.

 

[Janicholson]

Assuming you have the second shaft pulled out so the sprocket can go straight in, use two pieces of soft wood, and use a hard wood wedge between them.
If the force required is greater than that, something is going to fail really quick. Jim

 

[showcrop]

(quoted from post at 18:05:36 03/02/20)

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

I have NO idea what a "ten in one chain" is, but I'm GUESSING you need a tool similar to this Lisle "exhaust manifold spreader".

You didn't mention what the distance between the sprockets was, though.

Yes Bob, That is the general idea. There is somewhere around nine inches between them.

 

[showcrop]

(quoted from post at 18:05:36 03/02/20)

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

I have NO idea what a "ten in one chain" is, but I'm GUESSING you need a tool similar to this Lisle "exhaust manifold spreader".

You didn't mention what the distance between the sprockets was, though.

Yes Bob, That is the general idea. There is somewhere around nine inches between them.

 

[showcrop]

(quoted from post at 18:07:35 03/02/20) If you have to use force to push the sprockets apart, the chain will probably be too tight and it will ruin something, bearings etc. I'm not sure what your working on but maybe you could put an offset (half) link in and run it awhile? They make tools for pulling chain ends together but on smaller chain a piece of sash cord around a few rollers works well, like a block and tackle.

Russ, this is on a high powered snowmobile. I am confident that once turning that it will develop slack very quickly.

 

[showcrop]

(quoted from post at 18:49:13 03/02/20) Assuming you have the second shaft pulled out so the sprocket can go straight in, use two pieces of soft wood, and use a hard wood wedge between them.
If the force required is greater than that, something is going to fail really quick. Jim

Janicholson, yes the 2nd sprocket is off the shaft but will slip right on once lined up. I was thinking of two blocks of wood with some sort of screw arrangement but a wedge may be quicker and easier. I know that it is going to take very little push.

 

[Bob]

(quoted from post at 21:39:51 03/02/20)

(quoted from post at 18:05:36 03/02/20)

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

I have NO idea what a "ten in one chain" is, but I'm GUESSING you need a tool similar to this Lisle "exhaust manifold spreader".

You didn't mention what the distance between the sprockets was, though.

Yes Bob, That is the general idea. There is somewhere around nine inches between them.

You should be able to use a standard turnbuckle, mate 3/8" or 7/16" thread, cut the eyelets off and weld a "saddle" at each end, more or less a larger version of the "manifold spreader".

 

[caterpillar guy]

Can you just loosen the bolts holding the bearing add chain then tighten back up?

 

[Determined]

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

1/64 is not much when you divide it by the number of links in the chain.

I would give it a good soak in solvent then try it again.

Even bringing it inside to warm up for awhile may be enough if it is that close.

 

[Steve in VA]

I was also wondering if warming or heating
the chain would increase its effective
length sufficient to allow the sprockets
to fit on. As you say, 1/64 isn't a lot to
move. Warming the chain would expand each
link and in total.could be enough.

 

[Determined]

(quoted from post at 11:04:49 03/03/20) I was also wondering if warming or heating
the chain would increase its effective
length sufficient to allow the sprockets
to fit on. As you say, 1/64 isn't a lot to
move. Warming the chain would expand each
link and in total.could be enough.

Not quite the same but I know when the chain on my old Stihl chainsaw got warm (had to replace the oil pump) there would be so much slack in it that you would need to snug it up.
Let it cool off and the chain would be so tight you would have to loosen it off before you could use it.

 

[showcrop]

(quoted from post at 07:35:06 03/03/20)

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

1/64 is not much when you divide it by the number of links in the chain.

I would give it a good soak in solvent then try it again.

Even bringing it inside to warm up for awhile may be enough if it is that close.

Determined, I finally decided to try the cleaning with solvent, partly because it would be the quickest and easiest if it worked. I knew that it was stiff and sticky with a protective coating kind of like cosmoline, and being stiff kept it from stretching out. I sprayed it good with brake cleaner, and as the brake cleaner dribbled off it was brown. Soon it was getting freed up and when I tried it again I was able to slip the bottom sprocket onto its shaft.

 

[Determined]

(quoted from post at 17:56:05 03/03/20)

(quoted from post at 07:35:06 03/03/20)

(quoted from post at 18:50:06 03/02/20) I need to push two sprockets apart just 1/64 inch in order to get the second sprocket onto its shaft. The chain is new and is probably tight due to lube in the rollers. It is a very strong ten in one chain that resides in a chain case. I could build what I have in mind but there must be something out there.

1/64 is not much when you divide it by the number of links in the chain.

I would give it a good soak in solvent then try it again.

Even bringing it inside to warm up for awhile may be enough if it is that close.

Determined, I finally decided to try the cleaning with solvent, partly because it would be the quickest and easiest if it worked. I knew that it was stiff and sticky with a protective coating kind of like cosmoline, and being stiff kept it from stretching out. I sprayed it good with brake cleaner, and as the brake cleaner dribbled off it was brown. Soon it was getting freed up and when I tried it again I was able to slip the bottom sprocket onto its shaft.

Glad to hear it worked for you.
More times than not I have learned (usually the hard way) that if something is supposed to fit and it won't it is me or something minor I am overlooking.

 

[fertooos]

would a bearing splitter work.?