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Wisconsin Aks


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#1 jim knutson OFFLINE  

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Posted January 29, 2013 - 05:25 PM

i have a wisconsin AKS, 1948 year. when turned over, the tappet for the intake is working correctly, however the exhaust tappet is moving slightly,  but never touches the valve stem. also, with every exhaust stroke in the rotation, it binds slightly, then makes a slight "twang" inside the engine, then keeps turning over normally. i think it could be a broken camshaft if that is even possible? i have no experience with these old wisconsins, but have alot of small engine repair in my background. please advise me on the possibilities of what this could be, before i open up the engine. thanks- Jim.


Edited by jim knutson, January 29, 2013 - 05:49 PM.


#2 Texas Deere and Horse OFFLINE  

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Posted January 30, 2013 - 12:50 AM

Jim, If the cam was broken, I doubt that the engine would turn over at all. I would come closer to thinking that the lobe is wore off or the lifter is messed up some way.


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#3 Bruce Dorsi OFFLINE  

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Posted January 30, 2013 - 09:28 AM

I have seen a few Wisconsin engines which would start and run with a broken cam, but they would not speed up beyond idle.  .....Real head scratchers until teardown.

 

It is possible that the cam is worn or broken on your engine if the exhaust tappet is barely moving.  .....If the tappet moved a normal amount, but the exhaust valve had too much clearance, that could be easily corrected.

 

I'm afraid you're in for a teardown of the engine.


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#4 Lauber1 OFFLINE  

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Posted January 30, 2013 - 11:52 AM

i quess im wanting to know what kind of machine this engine is going on, as its not a common one.



#5 jim knutson OFFLINE  

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Posted January 30, 2013 - 01:41 PM

thanks guys...i am heading out to the shop in a little while. this engine is the original engine on my FMC Bean Cutler...i was hoping to get it running this month, or at least the first couple weeks in Feb., but i am not so sure that will happen at this point. i will update to you what i find once i get into it.


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#6 jim knutson OFFLINE  

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Posted January 30, 2013 - 04:11 PM

:( it is not good....

governer flywheight:

governor flywheight1.JPG

governor flywheight1.JPG]

cam:

cam.JPG

i have not pulled the cam yet, but i think it broke the head of the exhaust tappet off too.


Edited by jim knutson, January 30, 2013 - 04:14 PM.


#7 jim knutson OFFLINE  

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Posted January 30, 2013 - 04:52 PM

i just bought another cam with the flywheight assy, and lifters off ebay, for $30.00 shipped.....i thought that was a good deal, what do you think? was it worth it? :biting_nails:


Edited by jim knutson, January 30, 2013 - 04:52 PM.


#8 wilberj OFFLINE  

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Posted January 30, 2013 - 05:52 PM

i just bought another cam with the flywheight assy, and lifters off ebay, for $30.00 shipped.....i thought that was a good deal, what do you think? was it worth it? :biting_nails:

 

Was it for a AKS?? dont sound bad to me



#9 olcowhand OFFLINE  

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Posted January 30, 2013 - 05:59 PM

i just bought another cam with the flywheight assy, and lifters off ebay, for $30.00 shipped.....i thought that was a good deal, what do you think? was it worth it? :biting_nails:

 

I'd say a decent deal.  You could spend a fortune in gas driving around old shops looking for these parts.  



#10 chris m OFFLINE  

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Posted January 30, 2013 - 06:15 PM

Ouch! I guess the cam broke. That price seems real good to me. Glad you were able to find parts! It can be difficult sometimes on these old Wisconsin's.



#11 jim knutson OFFLINE  

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Posted January 30, 2013 - 06:34 PM

Was it for a AKS?? dont sound bad to me

it was for an AK....according to my instruction and parts list book, they should interchange. the cam i bought came from a 1948 AK, and the number for the cam was listed as EA-101-F-S1, and the book calls for EA-101-A-S1, i hope i read it right, because the part numbers were different :reading_the_manual: , but they look the same to me. the book did not seperate the cam numbers for the different series engines, but it was listed under the "parts interchangeable on modedls AA,AB,ABS,AK,and AKS" pages.....so i think it will work.



#12 chris m OFFLINE  

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Posted January 30, 2013 - 07:07 PM

It is very possible it will work. I know on my AKN that the AKNL and AKNLD parts will interchange. Even in the parts book it says to order parts for an AKNL as the AKN was discontinued. I just never had a AKS before so I am not 100% sure.


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