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Discussion Forum

Is This Engine Worth Repairing?

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James

02-02-2002 00:21:18




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Hi Everyone:

I was given an 11HP Briggs lawn mower engine which has a blown 2-inch hole on one side. The engine has plenty of oil in it. So, I dont know what caused the hole, especially, since the Starter mounting bracket above the hole on the same side is also broken off. So, the cause could be either internal or external.

I do not know much about mower engines, but I would like to learn. So, I have decided to make repairing this engine a learning project, that is, if it is repairable. Someone suggested to patch the hole with J-B Weld. Others say, it wont work. What do you think? Is there any hope for this engine or is it gone?

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Don Young

02-02-2002 21:35:19




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 Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 00:21:18  
It is always worth discovering and learning new things and you have a golden opportunity!! If there is severe internal damage to the crankshaft, camshaft, or other parts, it may not be reasonable to repair because of parts cost, but it doesn't cost anything to look and learn. A crankcase hole can likely be repaired with JB Weld and a piece of sheet metal. Have Fun!!!



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James

02-02-2002 19:49:52




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 Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 00:21:18  
Additional Info:

I have a picture of the engine with the blown hole and broken starter indicated on it. If any of you would like to see it, I can email it to you.

Thanks again, James.



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John in MA

02-02-2002 10:43:06




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 Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 00:21:18  
I've been watching your posts over on the mower forum. It sounds like the hold was caused by a thrown connecting rod. The starter bracket just happened to be in the way.

It's likely a lost cause, but you're the only one who can tell for sure. Why haven't you taken the engine apart yet?



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James

02-02-2002 18:37:16




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 Re: Re: Is This Engine Worth Repairing? in reply to John in MA, 02-02-2002 10:43:06  
Hi Everyone:

Thanks for suggestions. As I mentioned, I have no experience in engine repair and would like to use this as a learning experience, even if it is a lost cause.

I have not yet taken the engine apart to look inside and see what is damaged. Can I take the oil pan at the bottom off to look inside? What is a rod supposed to look like? I can see a few parts through the 2-inch hole on the side, but dont know what I am seeing! I also can reach inside with my finger through the blown hole. But again I dont know what I am touching. I guess you all have heard the story of the blind man and the elephant!!

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Neil

02-02-2002 18:49:32




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 Re: Re: Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 18:37:16  
Stop by a library and pick up a book on small engine repair.
You can not hurt anything at this point by taking the access cover off the engine. It should give you a decent view inside. Even if you dont know what the parts should look like, I am sure you will recognise which parts are broken.



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Trucker

02-10-2002 16:02:33




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 Re: Re: Re: Re: Is This Engine Worth Repairing? in reply to Neil, 02-02-2002 18:49:32  
After you read the book,take it apart,most likely the rod will be stuck to the crank and broke,shrapnel from the broken rod probobly made the hole,then take the good stuff off like the carb,and throw the rest away,you can probobly buy a motor that runs cheaper than the parts would be to fix it,and you could fix the hole with JB WELD,but you would need a crank,rod,piston,rings gaskets,and more probobly.For the same money you would spend on this junk you could go to the junk yard and buy a worn out Chevy v8,tear it down and rebuild it and have something that was worth something when you get done,besides learning about engines.

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RandyB

02-02-2002 09:01:12




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 Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 00:21:18  
I had one with a hole in the side where the rod broke loose and blew a hole. There was not much to work with after that.



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gatractorman

02-02-2002 03:47:55




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 Re: Is This Engine Worth Repairing? in reply to James, 02-02-2002 00:21:18  
Hey James, what can you see when you look thru the hole? anything broke or missing? chances are something from outside caused the hole since your starter mtg. bracket is broken as well, JB-Weld will work fine on the hole but I would fashion a piece that fits inside the hole then JB that to the block and also make sure no oil is present in or around the hole when JB'en.



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