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Good morning, firs of all sorry for mi english... I am from Argentina and I need your help. I receive a new pouland tractor with a B&S 17 hp ohv. The owner who give me the machine, mixed by error the push rods (they are different). I need to know two things: 1) wich valve is at the top and wich at the bottom 2) wich rods I have to install at top and wich at bottom? Thanks for your help...:thumbsup:

mono, This question and the answer comes up a lot . Have you tried the "search" button"

im taking a stab here..big valve head should be exaust.EX on valve? big push rod....smaller valve head intake valve small push rod..i think.. your English is fine.

tybilly said:

im taking a stab here..big valve head should be exaust.EX on valve? big push rod....smaller valve head intake valve small push rod..i think.. your English is fine.

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jaaja..thanks... but both valver are similar size.. or very similar. Push rods are different.. One is steel and have like a little ball at the end and the other is different..

would you please post model numbers of your engine?

the aluminum rod goes for the intake(top) the steel push rod is bottom..the exaust valve might be the valve that is burned or dark in color on the front..

17 HP will probably be a model 31 or 33.

Exhaust valve is top and inlet is bottom.

Usually inlet has the alloy push rod and the exhaust has the steel push rod but on this model it can be the other way round.

thanks pugaltude,I was trying my best..lol

◦Single Cylinder OHV - Model Series 260700, 261700 upper push rod (exhaust) is hollow. Model Series 28N700, 28Q700, 28U700, 28W700, 287707, 310700, 312700, 313700 exhaust push rod has a red band of paint for identification and is steel.
◦Intek V-Twin OHV - Intake push rods are aluminum.

◦Vanguard V-Twin - All models (except 540000, 610000) exhaust valve push rods are aluminum. Model Series 540000 and 610000, all push rods aluminum.

Here is the Briggs answer.

mono0205 said:

Good morning, firs of all sorry for mi english... I am from Argentina and I need your help. I receive a new pouland tractor with a B&S 17 hp ohv. The owner who give me the machine, mixed by error the push rods (they are different). I need to know two things: 1) wich valve is at the top and wich at the bottom 2) wich rods I have to install at top and wich at bottom? Thanks for your help...:thumbsup:

Click to expand...

the alum push rod goes on the bottom for the intake valve