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Wisconsin Engines Single cylinder up to V4 engines.

Wisconsin Engines

Fresh TF rebuild/resto - need engine break in advice


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  #1  
Old 06-08-2012, 02:05:07 PM
Mr. Martensite Mr. Martensite is offline
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Default Fresh TF rebuild/resto - need engine break in advice

Hi everyone,

Managed to get the TF fired up last night for a few minutes and she hums! I am curious how long to run for a break-in period and at what RPM's this should be done. I've head varying stories and want some sage advice from owners of similar engines. I appreciate the help!

<a href="http://www.flickr.com/photos/22787951@N06/7343693542/" title="Wiscon TF 001 by rspoering77, on Flickr"><img src="http://farm9.staticflickr.com/8001/7343693542_e9299e4a57.jpg" width="500" height="375" alt="Wiscon TF 001"></a>

---------- Post added at 01:02 PM ---------- Previous post was at 01:00 PM ----------

<a href="http://www.flickr.com/photos/22787951@N06/7343693542/" title="Wiscon TF 001 by rspoering77, on Flickr"><img src="http://farm9.staticflickr.com/8001/7343693542_e9299e4a57.jpg" width="500" height="375" alt="Wiscon TF 001"></a>

---------- Post added at 01:05 PM ---------- Previous post was at 01:02 PM ----------


Wiscon TF 001 by rspoering77, on Flickr

I forgot how to upload pics :-)
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  #2  
Old 06-08-2012, 06:15:40 PM
Phil P Phil P is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

Hi

I have overhauled hundreds of them back in the 60’s & 70”s so many I could recognize where the bolts went even after going thru the cleaning tank.

The worst thing you can do is “slow run” the engine. You will need to put a load on it some how.

You probably will not be able to really break it in without a load. When we rebuilt them we ran them long enough to determine we didn’t have any oil leaks or similar problems. Then we put them back on the machine they operated and put them to work. Normally broke in and stopped using oil in 3 or 4nhours.

Phil P
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Old 06-08-2012, 07:07:28 PM
Mr. Martensite Mr. Martensite is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

Phil,

I've had a blast restoring this...were they all that much fun to rebuild?

Sounds like I need to get the welder reassembled and try burning some rod with it. That's the intended goal anyway so sounds like I have a plan. I appreciate your comments. Can't wait to see grandpa's face when he see's this again. He bought the welder new in '53-54 and he hits 94 this year. I'm fortunate there's folks out there that have teh knowledge of these machines!

Thanks!
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Old 06-10-2012, 01:35:09 AM
Jim M. Jim M. is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

Very nice Job! Wisconsins look great when all fixed up. Did you spray your cast iron carburetor with a clear coat of some sort to prevent rust? I'm working on a AEND and was wondering if I should leave the cast iron carburetor uncoated. Jim...
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Old 06-10-2012, 06:30:27 AM
Phil P Phil P is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

Hi

Just out of curiosity. Did you make sure the fitting in the back of the governor housing was restricted and that the small hole in it was clean?

We had 2 problems crop up when people unfamiliar with this engine repaired them. They would either replace the fitting in the back of the governor housing with a standard flair fitting or would not make sure the small hole was clean.

The unrestricted fitting caused the rod bearings to fail and the plugged fitting would cause accelerated wear of the gear train in the front cover.

That line provides lubrication to the front gear train but if unrestricted caused a low oil pressure and the spray nozzles in the crankcase don’t spray enough oil to lubricate the connecting rods.

Phil P
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Old 06-10-2012, 09:24:04 AM
Mr. Martensite Mr. Martensite is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

Jim,

Thanks for the kind words. I did not coat the carb with anything. this is the final finish after a cleaning dip.

Phil P,
Yes the restriction is in place and the hole was clean. Thanks for the info on failures due to the restriction. I appreciate it.
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Old 06-15-2012, 09:55:20 PM
power king steve power king steve is offline
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Default Re: Fresh TF rebuild/resto - need engine break in advice

All of my wisconsin manuals say to run a low rpm with no load (1200) for the first half hour. Then full throttle no load for an additional 3 to 3-1/2 hours. then light load till total time is about 8 hours untill full load is applied.

This is how i have done all my wisconsins and they have all turned out great!
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