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Timing Off


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#1 bbuckler OFFLINE  

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Posted March 01, 2016 - 09:07 PM

We started putting back together one of briggs and stratton today. We had the timing marks on the cam and the crankshaft lined up but the crank is hitting one of the lobe.



#2 classic ONLINE  

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Posted March 01, 2016 - 10:26 PM

Is it the connecting rod that is hitting the lobe? If so, the connecting rod may be in backwards. Double check your timing marks.
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#3 bbuckler OFFLINE  

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Posted March 01, 2016 - 10:33 PM

Is it the connecting rod that is hitting the lobe? If so, the connecting rod may be in backwards. Double check your timing marks.

It the counterweight we haven't got the rod in yet.



#4 Texas Deere and Horse OFFLINE  

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Posted March 01, 2016 - 10:34 PM

Does it hit with the side cover back on the engine? The cam can lay out of alignment with the side cover off.


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#5 bbuckler OFFLINE  

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Posted March 01, 2016 - 10:37 PM

I don't have the covers back on yet but I got the two plates installed back.


Edited by bbuckler, March 01, 2016 - 10:38 PM.


#6 DougT ONLINE  

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Posted March 02, 2016 - 01:10 AM

Are you sure you are looking at the right marks? I always check my timing by making sure the exhaust valve closes just as the piston passes TDC. You could watch the lobes and the crank throw to get a rough idea.


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#7 bbuckler OFFLINE  

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Posted March 02, 2016 - 08:46 AM

I'm going to look and take pictures of the engine that I didn't pull the crank and cam yet.


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#8 bbuckler OFFLINE  

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Posted March 02, 2016 - 09:46 AM

This is the mark we was going by but on mine which I know the timing was fine the mark don't line up with the mark on the cam. 

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#9 bbuckler OFFLINE  

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Posted March 02, 2016 - 10:04 AM

The cam timing mark on mine is at BDC with the exhaust valve open. 

 

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#10 larrybl ONLINE  

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Posted March 02, 2016 - 12:04 PM

Not sure I see any timing marks there. I would suggest taking pictures "before" disembly. Really helps with re-assembly. Also, be carefull inside the case, lots of sharp edges. Hulk II's engine has some extra Red lube :D

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#11 bbuckler OFFLINE  

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Posted March 02, 2016 - 12:17 PM

Not sure I see any timing marks there. I would suggest taking pictures "before" disembly. Really helps with re-assembly. Also, be carefull inside the case, lots of sharp edges. Hulk II's engine has some extra Red lube :D

The other engine I have is the same model so I'm getting a lot pictures. 



#12 bbuckler OFFLINE  

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Posted March 02, 2016 - 01:35 PM

I'm going to set it like mine. Which is BDC with the lobe starting to open the exhaust valve.



#13 bbuckler OFFLINE  

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Posted March 02, 2016 - 02:08 PM

Manual show the timing marks to be right. I'm going to get a video of it. 

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#14 bbuckler OFFLINE  

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Posted March 02, 2016 - 02:37 PM

Video 1 ( I'm going to go get a video of the one we are working on). 



#15 bbuckler OFFLINE  

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Posted March 02, 2016 - 03:10 PM






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