QuestionAll I can find is that the compression is just gotten harder and has extended to the powerstroke phase. But otherwise I can see nor hear any metal to metal sound within the engine.
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I have been turning the engine over for about 30 minutes before I tried it again. Now the compression and the powerstroke phase of the engine are now hard. Is this a good thing? Stephen
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OK after about an hour of constantly turning over the engine, the sparatic starting thing has stopped and is no longer happening. Is this a bad thing. Laso the compression is still present. I will keep goign. Just trying to keep you informed Thanks Stephen
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Ok after fighting with the starter pully spring, I finally tried what you proposed. I discovered that the compression issue has subsided slightly And I am achieveing sparating starting. The thing is that when I connected the camshaft gear to the timing gear on the crankshaft I remember lining up a dot on the cranksaft gear to the dot on the camshaft gear. And after rotating the cranksaft many times nothing hit and when I got it all back together I put the lifters in and checked the position of the piston when intake and exhaust happened. This all seemed fine. I still can't figure out why the engine just won't fire. Thanks Stephen
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The Model Number is 121602 with type number 0190 nad a funny code date of 000417. To answer your questions the connecting rod broke at the connection with the crankshaft and basically the connecting rod exploded leaving bits and pieces inside the crankcase(which I cleaned out completly). From what i can see the cranksaft still looks fine. I am pretty sure I aligned the timing gear on the crankshaft to the cams on the other shaft properly because the intake and exauhst happens when it needs to and the spark happens after the intake gases have been compressed. The cylinder didn't seem to be craked or scarred in anyway. With reagards to the spark plug I feel no combustion within the chamber but there is a spark. The engine is not kicking back at all. Thanks for concerns. Stephen
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I currently own a Whites Outdoor with a 6.5 hp pull start briggs & stratton engine. A while ago the connecting rod broke along with the piston rings. I ended up replaceing these parts and putting the whole engine back together again after well oiling the engine. When I tryed to start it I found that the compression cycle was very hard to turn over with the pull string. Also the engine just wont start. I have alreaddy checked the gaskets, spark plug, and lifters. They all look like they are fine. I just need a lot of help with this compression problem and the ignition. Thanks
Answer -
Hello Stephen:
Where did the Connecting Rod Break, Please? If the Crankshaft was Damaged and Not Replaced it May be Out of Round and Causing the Feel of High Compression. Did you get the Timing Marks for the Cam and Crankshaft Aligned Properly? Was there Scarring in the Cylinder? Do you have Fire at the Plug? Is the Engine Kicking Back when you Try to Start it? Send me the Model, Type and Code Numbers Off of the Engine, Please. With these I can see a Diagram of the Engine and Better Assist you. Thanks.
Respectfully
John
Answer -
Hello Stephen:
Check the Valve Lash(clearance between the valve stem and tappet). Set the Clearance at .013in Intake and .017in Exhaust. Also Pour a Small Amount of Engine Oil into the Plug Hole and Try to Start the Engine. The Oil will Help Build compression Until the Rings Seat. Did you Deglaze the Cylinder before Installing the Piston and Ring Set? Hope this Helps. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
Answer -
Hello Stephen:
The Problem you are having is a Problem Some Newly Rebuilt Engines have. Keep Putting Small Amounts Of Oil Into the Cylinder and Continue to Try and Start the Engine. I have Spent up to 4 Hours Doing this Process before Some Engines Start. The Problem is in the Cylinder Itself. The New Rings Havent Seated Enough to Allow for Proper Compression and the Only thing that can be Done is Continue to Turn the Engine. The More the Engine is Turned the More the Rings Will Seat. I have an Electric Motor Set Up to Turn the Rebuilt Engines in the Shop for 2 Hours before we Attempt to Start them. Hope this Helps. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
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Hello Stephen:
Stop adding the Small Amout of Oil and Change to a New Plug. The Plug May be Fouled by Now. Thanks for the Update. Thanks.
Respectfully
John
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Hello Stephen:
Is it Locking the Engine or is the Compression Getting Higher? Do you Feel any Grinding or Metal to Metal Sounds when the Engine is Being Turned? Thanks.
Respectfully
John
Answer Hello Stephen:
Not hearing the Metal to Metal Sound is Good. That means that The Rings are not Gouging the Cylinder and the Connecting Rod Isnt Doing the Same to the Crankshaft. What is the Compression On the Engine Now? Is it above 70psi? Hang in there I have had Plenty of these and Sometimes it Takes a While to Get the Problem Solved. Thanks.
Good Luck
Respectfully
John
