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B&s Twin Timing?


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#1 KennyP ONLINE  

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Posted September 24, 2013 - 05:47 PM

The service manual sucks. "To remove camshaft, make sure tappets are out of the way." How?

"Align camshaft timing mark with the dot on #2 crank pin." Then what does the gear behind the bearing do? It has a mark and fits on a key. I don't understand any of this!


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#2 Texas Deere and Horse OFFLINE  

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Posted September 24, 2013 - 06:11 PM

Sorry Kenny, I don't work on Briggs enough to help you out. I hope you get it figured out !!


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#3 JRJ OFFLINE  

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Posted September 24, 2013 - 06:12 PM

Looks like I am beating everyone to the punch at being first. Kenny I don't have the answer but if I did I would sure give it to you, and as a lot of the members always says, someone will be along shortly to give the correct answer and probably more.

 

Kenny I am sure that after it is explained to you and you get a handle on it you will understand it and say to yourself I knew that. 

 

Not making fun of you I am just in a good mood this evening.

 

 

Dick


Edited by JRJ, September 24, 2013 - 06:15 PM.

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#4 KennyP ONLINE  

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Posted September 24, 2013 - 06:18 PM

That manual leaves a lot wide open! Tomorrow I'll yank the cam and find a way to get it back in. Then I'll time it as I think it needs.



#5 gopher OFFLINE  

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Posted September 24, 2013 - 06:49 PM

I have not taken any out but what they mean is to have the cam low sides to tappets. If you have bearing  on the crank you don't go by mark on gear on crank there should be mark on the crank. If your looking at manual I think you are if you line up the the markes before you pull apart I'd turn motor over so the tappets wont fall down when lobe comes off contact with them.


Edited by gopher, September 24, 2013 - 07:06 PM.


#6 KennyP ONLINE  

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Posted September 24, 2013 - 06:54 PM

I have not taken any out but what they mean is to have the cam low sides to tappets. If you have bearing  on the crank you don't go by mark on gear ther should be mark on the crank.

Okay on the tappets. The bearing comes off real easily, so why not tell how to time using the gear behind it? It is the one that sets where the timing will be. With it in place, you won't be able to adjust to this other mark wherever it is.



#7 gopher OFFLINE  

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Posted September 24, 2013 - 07:20 PM

I thought there was a reason for different timeing mark go farther down your manual the bearing is a press fit it should not slide right off as you can tell I do not type for a living


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#8 KennyP ONLINE  

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Posted September 25, 2013 - 06:41 AM

I thought there was a reason for different timeing mark go farther down your manual the bearing is a press fit it should not slide right off as you can tell I do not type for a living

Hmmmm? Then all that would make sense. Guess I'll see when I go to pull the pan from the vertical shaft engine if that bearing fits tighter. My thoughts are to time as per plain bearing, then put the roller bearing on.



#9 olcowhand ONLINE  

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Posted September 25, 2013 - 08:50 AM

With an Onan, you pull the valves so the tappets can be pushed into the valve spring area.  I figure it's likely the same with this Briggs.



#10 KennyP ONLINE  

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Posted September 25, 2013 - 06:26 PM

I cheated! Used some thin metal to hold the valves open and the cam came right out!






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