Small Engines (Lawn Mowers, etc.): Briggs 16.5 HP OHV questions, cylinder hone, push tube

Question
QUESTION: I am replacing a broken on this engine.  I removed the camshaft the rod attaches to. Does this need to be replaced in a certain way in relatio n to the other shaft/gearto correctly time the valves?  Also the valve rods are slightly different-one having rounder ends then the other-which is the intake and which the exhaust?  Thanks!

ANSWER: Hello John:

Send me the Model Numbers Off the Engine, Please. With these I can Locate the Proper Manual and Better Assist you. The Crankshaft has a Timing Gear with a Timing Mark. The Cam (pushes the Valve Tubes) has a Timing Mark on it. Once the Cylinder has been De-Glazed and the Piston and Crankshaft have been Installed; Match the Timing Mark on the Crankshaft with the Timing Mark on the Cam. This Times the Valves. One Push Tube Should be Steel and the Other Aluminum. The Aluminum Tube is the Intake Push Tube and the Steel One is the Exhaust Push Tube. Hope this Helps. I am Here if You Require More Assistance. Let me Know What Happens, Please. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 9pm EST (US). My New Day Starts then. Thanks.

Respectfully

John

---------- FOLLOW-UP ----------

QUESTION: Thank you-it's a 313707 series engine-You've helped me greatly so far.  How do you recommend I deglaze the cylinder-and any advice on how to replace the rod-?  Thanks again!

Answer
Hello Again John:

You will need to Purchase a Cylinder Hone for De-glazing the Cylinder. Use Plenty of Oil and Do Not De-glaze without Using Plenty of Oil During the Process. You Want to Remove the Smooth Surface from the Cylinder and Make the Cylinder Finish Look Dull. Make Sure there is No Ridge at the Top of the Cylinder. Usually if there is a Wear Edge at the Top of the Cylinder, it can be Removed with the Hone if it is Not too Deep. If a Fingernail can Catch the Ridge, then it will Catch the Rings on the Piston when the Rings Contact it. Make Sure the Rod is Replaced so the Rod Cap Bolts are Facing the Same Direction as the Old Rod Cap Bolts. The Rod Cap Bolt Torque is 100in lbs. The Oil Pan Bolt Torque is 180in lbs. The Head Bolt Torque is 220in lbs. The Flywheel Torque is 100ft lbs. The Coil/Magneto is Gapped to .020in from the Flywheel Magnets. You can View a Breakdown/IPL of this Engine at this Site Addy, http://www.smallenginepartswarehouse.com/parts.asp and Select the Shop Online Parts Look Up. Then Select the Model Tab. Then Select the OEM and Enter the Model and Type Numbers. Then Double Click on the Model in the Results Area. Now you can Select the Section of the Engine you Wish to View. Hope this Helps. I am Here if You Require More Assistance. Let me Know What Happens, Please. Thanks.

Good Luck

Respectfully

John