Tech:Engine/K Series/Valve Clearances - Revision history

Taz rx at 03:08, 25 January 2010

2010-01-25T03:08:58Z

← Older revision		Revision as of 03:08, 25 January 2010
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	The valve clearances for 3/4k for adjustable lifters are:		The valve clearances for 3/4k for adjustable lifters can be set either when the engine is cold or hot. Both clearance are below in Thousands of an inch and mm.

	~~.008" & .012" when hot and .005" & .009" when cold (thou - thousanths of an inch)~~		COLD:

	~~Cold~~		Exhaust valve:
	0.009in or 0.23mm ~~out~~
	0.006in or 0.15mm in		0.009in or 0.23mm

			Inlet Valve:

			0.006in or 0.15mm


			HOT:

			Exhaust valve:

			0.012 or 0.30mm

			Inlet valve:

	~~Hot~~
	~~0.012 or 0.30mm out~~
	0.008 or 0.20mm in		0.008 or 0.20mm in


	These are for motors with STOCK cams. When upgrading to a bigger aftermarket camshaft consult you cam grinder for new valve clearnaces. Some cams shops even list them in their on-line catalogues.		These are for motors with STOCK cams. When upgrading to a bigger aftermarket camshaft consult you cam grinder for new valve clearnaces. Some cams shops even list them in their on-line catalogues.
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	When setting the valve clearances always make sure the cylinder you are working on is on its compression stroke. This is easy to do: With the tappet cover off turn the motor over (spanner on crank pulley) until you see the appropiate inlet valve open, keep turning till it closes and then give it another 1/4 turn or so. DON'T go so far that you start to open up the exhaust valve, you basically want it half way between the inlet closing, and exhaust opening. At this point both rockers should be "loose". Adjust both tappet and move onto the next cylinder.		When setting the valve clearances always make sure the cylinder you are working on is on its compression stroke. This is easy to do: With the tappet cover off turn the motor over (spanner on crank pulley) until you see the appropiate inlet valve open, keep turning till it closes and then give it another 1/4 turn or so. DON'T go so far that you start to open up the exhaust valve, you basically want it half way between the inlet closing, and exhaust opening. At this point both rockers should be "loose". Adjust both tappet and move onto the next cylinder.

	~~Aftre~~ replacing a head gasket, its not a bad idea to check and re-adjust the tappets if required after around 500km.		After replacing a head gasket, its not a bad idea to check and re-adjust the tappets if required after around 500km.

	The only tools required are:		The only tools required are:

Irokin at 01:33, 23 January 2010

2010-01-23T01:33:04Z

← Older revision		Revision as of 01:33, 23 January 2010
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	.008" & .012" when hot and .005" & .009" when cold (thou - thousanths of an inch)		.008" & .012" when hot and .005" & .009" when cold (thou - thousanths of an inch)

			Cold
			0.009in or 0.23mm out
			0.006in or 0.15mm in

			Hot
			0.012 or 0.30mm out
			0.008 or 0.20mm in

	These are for motors with STOCK cams. When upgrading to a bigger aftermarket camshaft consult you cam grinder for new valve clearnaces. Some cams shops even list them in their on-line catalogues.		These are for motors with STOCK cams. When upgrading to a bigger aftermarket camshaft consult you cam grinder for new valve clearnaces. Some cams shops even list them in their on-line catalogues.

Taz rx at 05:25, 17 September 2009

2009-09-17T05:25:12Z

← Older revision		Revision as of 05:25, 17 September 2009
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	The only tools required are:		The only tools required are:

	14mm socket or spanner (to remove tappet cover nuts)		14mm socket or spanner (to remove tappet cover nuts)

	Feeler guages		Feeler guages

	12mm ring spanner		12mm ring spanner

	Medium sized flat head screw driver		Medium sized flat head screw driver

Taz rx at 05:23, 17 September 2009

2009-09-17T05:23:31Z

← Older revision		Revision as of 05:23, 17 September 2009
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	You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.		You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.

	[[Image:Tools.jpg]]		[[Image:Tools.jpg]]

Taz rx at 05:23, 17 September 2009

2009-09-17T05:23:16Z

← Older revision		Revision as of 05:23, 17 September 2009
Line 18:		Line 18:

	You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.		You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.
	Image:Tools.jpg		[[Image:Tools.jpg]]



	Article by Taz_Rx		Article by Taz_Rx

Taz rx at 05:22, 17 September 2009

2009-09-17T05:22:05Z

← Older revision		Revision as of 05:22, 17 September 2009
Line 18:		Line 18:

	You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.		You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.
			Image:Tools.jpg



	Article by Taz_Rx		Article by Taz_Rx

Taz rx at 05:19, 17 September 2009

2009-09-17T05:19:41Z

New page

The valve clearances for 3/4k for adjustable lifters are:

.008" & .012" when hot and .005" & .009" when cold (thou - thousanths of an inch)

These are for motors with STOCK cams. When upgrading to a bigger aftermarket camshaft consult you cam grinder for new valve clearnaces. Some cams shops even list them in their on-line catalogues.

5k's, having hydraulic lifters do not have an adjustable valve clearance. If converting to solids use the above 3/4k specs (stock cams) or consult your cam grinder (for aftermarket).

When setting the valve clearances always make sure the cylinder you are working on is on its compression stroke. This is easy to do: With the tappet cover off turn the motor over (spanner on crank pulley) until you see the appropiate inlet valve open, keep turning till it closes and then give it another 1/4 turn or so. DON'T go so far that you start to open up the exhaust valve, you basically want it half way between the inlet closing, and exhaust opening. At this point both rockers should be "loose". Adjust both tappet and move onto the next cylinder.

Aftre replacing a head gasket, its not a bad idea to check and re-adjust the tappets if required after around 500km.

The only tools required are:
14mm socket or spanner (to remove tappet cover nuts)
Feeler guages
12mm ring spanner
Medium sized flat head screw driver

You can also get proper valve adjustment tools which are basically the ring spanner and screw driver combined in one unit. They are no way manditory, but do make the job a lot easier. Here is one pictured below.

Article by Taz_Rx