Valve Adjustment

spriddle · 06-09-2011, 11:48 AM

Thanks Dave:

Quote:

Originally Posted by smallblock450sl

No problemo....take the 4 valve cover bolts off and remove the valve cover and remove the spark plug. useing a screwdriver into the spark plug hole, turn the engine over (by hand!) by turning the primary clutch till the piston is at "top dead center" or "TDC". Use a 4 thousanths feeler gauge between the top of the valve stem and the rocker arm addjustment bolt head. If there to tight, the valve can't close, if to loose..you could lose a push rod when reving it up. To adjust, if needed, loosen the 10 mm "jam nut" on the adjuster screw, then ever so slightly, turn the adjuster screw (clockwise to tighten) till there is a "slight drag" on the feeler gauge, then tighten the jam nut and check witthe feeler gauge for tightness. You will need to do this several times, because the "tightening of the jam nut will affect the adjustment. Then, it is VERY important that you turn the engine over (back to TDC) and recheck the settings. I myself usually turn the engine over and check about 5 times to make shure the adjustment is correct. Reinstall the spark plug and the valve cover and give it a run. Good luck

smallblock450sl · 06-09-2011, 07:13 PM

If it helps someone I'm happy. Sprid, if you thought was worth a "sticky" so be it, but at least you could have "spell checked" it for me

spriddle · 06-13-2011, 08:12 AM

Quote:

Originally Posted by smallblock450sl

If it helps someone I'm happy. Sprid, if you thought was worth a "sticky" so be it, but at least you could have "spell checked" it for me

There was some mis spelled words?

technoid · 11-04-2011, 12:00 PM

Quote:

Originally Posted by spriddle

Thanks Dave:

I have found by pushing down on the screw driver befor you tighten the lock nut, the setting won't move. This has worked for me on many different solid lifter engines.

Madman415 · 06-24-2012, 10:00 PM

I'm working on a 2003 G22 with a 357 engine. What is the valve clearance?

smallblock450sl · 06-25-2012, 10:21 AM

Quote:

Originally Posted by Madman415

I'm working on a 2003 G22 with a 357 engine. What is the valve clearance?

0.08-0.12 mm both intake and exhaust when engine is cold.

Madman415 · 06-25-2012, 08:17 PM

Quote:

Originally Posted by smallblock450sl

0.08-0.12 mm both intake and exhaust when engine is cold.

Thank You Very Much, I appreciate the help. Not too familiar with Yamaha's

Finman · 10-22-2012, 11:14 AM

is it better to check the valves with the motor in or out of the cart?

thanks,

Fin

TheNewGuy · 10-24-2012, 07:58 PM

Quote:

Originally Posted by Finman

is it better to check the valves with the motor in or out of the cart?

thanks,

Fin

No need to remove the engine for a valve adjustment.

stlouissux9119 · 11-21-2012, 09:02 AM

Thanks for this sticky. My cart needed valves adjusted and this being conveniantly located at the top of the thread showed me my clearances quick and got the valve free'd up and the cart runs great now! Best $250 spent ever.

06-09-2011, 07:13 PM	#2
smallblock450sl Today is the best day Join Date: Oct 2007 Location: Tacoma Washington Posts: 6,734	Re: Valve Adjustment If it helps someone I'm happy. Sprid, if you thought was worth a "sticky" so be it, but at least you could have "spell checked" it for me

06-24-2012, 10:00 PM	#5
Madman415 Gone Wild Join Date: Nov 2009 Location: Arkville, NY Posts: 263	Re: Valve Adjustment I'm working on a 2003 G22 with a 357 engine. What is the valve clearance?

10-22-2012, 11:14 AM	#8
Finman Not Yet Wild Join Date: Oct 2012 Location: Broken Arrow, OK Posts: 27	Re: Valve Adjustment is it better to check the valves with the motor in or out of the cart? thanks, Fin

11-21-2012, 09:02 AM	#10
stlouissux9119 Not Yet Wild Join Date: Nov 2012 Location: Chicagoland Posts: 17	Re: Valve Adjustment Thanks for this sticky. My cart needed valves adjusted and this being conveniantly located at the top of the thread showed me my clearances quick and got the valve free'd up and the cart runs great now! Best $250 spent ever.

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