Ask Experts Questions for FREE Help !
Ask

Top dead center on briggs & stratton OHV motor

Asked Oct 6, 2011, 04:34 PM — 3 Answers
I need to adjust the valves on my briggs ohv motor. How do I set the piston 1/4" past top dead center ?

Search this Thread
Share |
3 Answers
ma0641's Avatar
ma0641 Posts: 6,222, Reputation: 2489
Plumbing Expert
  
#2

Oct 6, 2011, 05:29 PM
First you need to determine the rotational direction of the engine. Then you need to determine if, at top dead center it is on compression or exhaust by watching the valves. Once you have determined the TDC on compression, insert a thin ruler into the cylinder and sit it on the piston. Note the reading of the ruler at the spark plug hole lip. Add 1/4" to that marking and rotate the engine until it is at that mark. For example, if at TDC the ruler reads 3/8 ", you add 1/4" =5/8 inch. Rotate the engine until 5/8 " is at the plug hole lip. Now you are at 1/4" past TDC and can adjust the valves.
Helpful
frank 10's Avatar
frank 10 Posts: 3, Reputation: 1
New Member
  
#3

Apr 27, 2012, 05:45 AM
witch valve is intake /exh. on 14.5 briggs
Helpful
crigby's Avatar
crigby Posts: 3,658, Reputation: 461
Outdoor Power Equipment Expert
  
#4

Apr 27, 2012, 07:47 AM


Hi,
I realize that the manual says that, but try doing the way shown in the YouTube video:
Lawn Mower Repair Valve Adjustment - YouTube
Peace,
Clarke
Helpful
Not your question? Ask your question View similar questions
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Add your answer here.

Remove Text Formatting
 

Undo
Redo
  
Decrease Size
Increase Size
Bold
Italic
Underline
Align Left
Align Center
Align Right
Ordered List
Unordered List
Decrease Indent
Increase Indent
Insert Email Link
Wrap [QUOTE] tags around selected text
Wrap [CODE] tags around selected text
Wrap [HTML] tags around selected text
Wrap [PHP] tags around selected text
Wrap [YOUTUBE] tags around selected text
Notification Type:



Check out some similar questions!

Briggs & Stratton 16.5 OHV [ 18 Answers ]

I have a B&S 16.5 OHV MTD Yardman that will not turn over even though the starter and battery are OK. It will turn to a point and then stops. If I remove the spark plug it turns freely like it should. I know that removes the pressure in the cylinder but I don't know what could cause it to bind...

17 HP OHV Briggs& Stratton Engine [ 2 Answers ]

Will this engine run without a battery once jump started?

Briggs & Stratton 16hp ohv [ 1 Answers ]

I have a Toro ride on lawn tractor. It is blowing oil through the exhaust manifold. I have already changed the head gasket and rocker arm cover gasket. It idles fine at low rpm's but when I kick it up the motor starts to blow white smoke, oil comes out the exhaust, and the engine rpm's go up and...

Murray 16.5 HP OHV Briggs & Stratton engine [ 1 Answers ]

I have a murray with a Briggs & Stratton Engine. Have a new battery, new starter, and silonoid. When you turn the key, the engine turns a little bit and locks up. Take plug out and fuel pours out of engine. Turn key with no plug to get fuel out, put plug in will start. Once started, it will...

Briggs & Stratton 14.5 HP OHV No Compression [ 2 Answers ]

My Riding mower has an 8 year old Briggs & Stratton 14.5 HP OHV Engine. Engine always maintained properly and has run well. While mowing, engine ran well for an hour and then suddenly quit for a split second, and backfired as it came back to life. I continued to mow and it did it again, the third...

View more Tools & Power Equipment questions Search