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Clinton Engine Flywheel Removal


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#1 bread320i OFFLINE  

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Posted October 20, 2013 - 06:44 PM

I am working to remove the flywheel from a Clinton 700 series engine. The rope starter pulley threads on to the crank and the flywheel has a dowel pin keeping the pulley from completely removing.

Anybody experience this? What did you do to remove? I need to check the points for a now spark condition.



#2 framesteer OFFLINE  

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Posted October 20, 2013 - 07:08 PM

Tried and true method of removing flywheels:

 

Reinstall the nut until the top of the nut is flush with the end of the crankshaft. 

 

With a healthy pry bar (a large screwdriver is a good tool), position the screwdriver between the bottom of the flywheel and the block (a thick part of the block) as if you are going to pry the flywheel off with the screwdriver. 

 

While applying force on the screwdriver to pry the flywheel off, smack the end of the crankshaft and nut with a good sized hammer. 

 

The tapered joint between the flywheel and the crank should release immediately. 

 

CAUTION:  Make sure you strike the crank/nut squarely or you may damage the shaft.



#3 superaben OFFLINE  

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Posted October 20, 2013 - 08:09 PM

Adam, that pin hold the starter sheave in place.  There is a nut separate from that on the crankshaft.  Pull that nut and the sheave pops right off.

 

You will have a Scintilla magneto on that engine.  Usually all it needs is a little points polishing to work.  However, make sure they are squeaky clean.  My 700 would not start until there was not a scrap of foreign material off those points.

 

Ben W.


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#4 bread320i OFFLINE  

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Posted October 21, 2013 - 10:26 AM

I removed the nut on the crankshaft.

Is the starter pulley threaded on the crankshaft, because it sure feels like it?

I can spin the starter pulley 1/2 turn before it hits the pin and stops.



#5 powerking56 OFFLINE  

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Posted October 21, 2013 - 10:57 AM

I first looked at this at 3:15 this morning, and grabbed my old Clinton book, and I'm still not sure...  Is this a rope start cup you are trying to get off?  If it is, yes I think it mentioned that cup is threaded on, the pin shows in the exploded parts diagram, but I found no mention of it in the service portion of the book.  It appears it is pressed in from the front side of the flywheel going by the diagram for the early 700 series.  Any idea of the engine's vintage?


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#6 bread320i OFFLINE  

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Posted October 21, 2013 - 12:55 PM

Yes it is a rope start pulley. The engine is probably mid 1950's.

The pulley has a small tab on the back which hits the pin keeping it from unthreading.

I guess I "could" pull out the grinder but I dont really want to.



#7 olcowhand ONLINE  

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Posted October 21, 2013 - 02:49 PM

Sounds like the pulley has just mushroomed a bit so it's tight to the threads to where it acts like it's threaded.  I believe it'll just take a little prying to get it to slip it off.



#8 bread320i OFFLINE  

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Posted October 21, 2013 - 05:24 PM

Sounds like the pulley has just mushroomed a bit so it's tight to the threads to where it acts like it's threaded.  I believe it'll just take a little prying to get it to slip it off.

 

The starter pulley is for sure threaded on. Prying would forsure damage the pulley. It spins freely until it comes in contact with the dowel pin. I am wondering if the dowel pin has moved causing an interference.



#9 superaben OFFLINE  

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Posted October 21, 2013 - 07:28 PM

Adam, I'm stumped. 

 

Are we dealing with a stamped sheet metal cup or a some sort of cast cup?

 

I hate to be stubborn, but I agree with Daniel if it is stamped sheet metal.  There is no way Clinton would pin the cup on like that.  I have a 700 in my shop that I have spent a lot of time on. There is a pin that engages the cup, but the cup is slipped onto the crankshaft.

 

If Clinton really bent a tab down to engage the flywheel then you are probably dealing with unmolested original points and condenser, since no guy would probably leave it on there.

 

Adam, what 700 are we dealing with here?  700 A, B700 or a D700?

 

Peter, where does it say in the manual that the cup is threaded on? 

 

Ben W.



#10 olcowhand ONLINE  

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Posted October 21, 2013 - 07:30 PM

The only time I've ever seen a cup with a bent tab, it simply slid over the crank & was held by a nut.  The tab always went into a hole in the flywheel.


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#11 bread320i OFFLINE  

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Posted October 21, 2013 - 08:32 PM

The rope starter pulley is cast Alum.


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#12 olcowhand ONLINE  

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Posted October 21, 2013 - 08:37 PM

Close up pics would help us understand much better.


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#13 superaben OFFLINE  

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Posted October 21, 2013 - 08:44 PM

The rope starter pulley is cast Alum.

 

Adam, I would love to see some pictures of this.  We are getting beyond the knowledge of my Clinton parts book.   You have something very unusual or very old, pre my book!

 

Ben W.



#14 bread320i OFFLINE  

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Posted October 21, 2013 - 09:03 PM

So I sent the wife to the shop to take a picture. I showed her how the pulley backs on and off as it turns.

I asked her to take a picture as I grasp the pulley with my huge guns and the pulley pulled off.

 

It is NOT threaded on.

 

Now to restore spark


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#15 olcowhand ONLINE  

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Posted October 21, 2013 - 09:05 PM

So I sent the wife to the shop to take a picture. I showed her how the pulley backs on and off as it turns.

I asked her to take a picture as I grasp the pulley with my huge guns and the pulley pulled off.

 

It is NOT threaded on.

 

Now to restore spark

 

What did Ben & I win?   :rolling:






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