Cam timing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DanoDMano · 11-13-2003, 09:53 PM

I have a decent book on engine rebuild, but have a question concerning reinstalling my new cam.

I have #1 piston at TDC just by turning over the engine until I see the cylinder fully extended. Are there marks I should be looking for to align the cam to the crank correctly??

I also bought the new timing set and want to make sure it goes on right as far as the three Keyways??

Hope this makes sense, I am a newbie to engines!!

Thanks,

Dan

oldtrucknut · 11-13-2003, 10:02 PM

There are marks on the timing gears. Align them with a straight edge of some sort. If you are building a wicked motor a degree wheel might be preferred.

DanoDMano · 11-13-2003, 10:18 PM

Thanks oldtrucknut , That explains the timing set, but what about the cam orientation?

Is that what the timing wheel is for?? I have seen one before.

oldtrucknut · 11-13-2003, 10:20 PM

What do you mean by orientation?

oldtrucknut · 11-13-2003, 10:24 PM

More specifcaly, the marks on the gears should point toward each other.

DanoDMano · 11-13-2003, 10:31 PM

I have the lifters out and the timing set removed. I cant just put the Cam in at any degree can I?

oldtrucknut · 11-13-2003, 10:35 PM

As long as the lifters are out, you can put it in any way you want as long as you line up the gears before you put the timing chain on. The gear that goes on the cam has a little hole that fits a nipple on the front of the cam. There is only one way to put it on, as is the crankshaft gear.

DanoDMano · 11-13-2003, 10:48 PM

Gotcha!! Thanks for the help oldtrucknut!!

oldtrucknut · 11-13-2003, 10:51 PM

One other thing, make sure that you put the safety tab plate on the gears when you install them, they should be in your new kit. It is a thin metal plate that goes under the bolt heads, then you pry them up over the heads, so they will not loosen and fall out. Glad that I could help out!!

11-13-2003, 10:02 PM	#2
oldtrucknut 67-72 truck surgeon Join Date: Jul 2003 Location: Indiana Posts: 155	There are marks on the timing gears. Align them with a straight edge of some sort. If you are building a wicked motor a degree wheel might be preferred. __________________ 1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182

11-13-2003, 10:18 PM	#3
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	Thanks oldtrucknut , That explains the timing set, but what about the cam orientation? Is that what the timing wheel is for?? I have seen one before. __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

11-13-2003, 10:20 PM	#4
oldtrucknut 67-72 truck surgeon Join Date: Jul 2003 Location: Indiana Posts: 155	What do you mean by orientation? __________________ 1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182

11-13-2003, 10:24 PM	#5
oldtrucknut 67-72 truck surgeon Join Date: Jul 2003 Location: Indiana Posts: 155	More specifcaly, the marks on the gears should point toward each other. __________________ 1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182

11-13-2003, 10:31 PM	#6
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	I have the lifters out and the timing set removed. I cant just put the Cam in at any degree can I? __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

11-13-2003, 09:53 PM	#1
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	Cam timing I have a decent book on engine rebuild, but have a question concerning reinstalling my new cam. I have #1 piston at TDC just by turning over the engine until I see the cylinder fully extended. Are there marks I should be looking for to align the cam to the crank correctly?? I also bought the new timing set and want to make sure it goes on right as far as the three Keyways?? Hope this makes sense, I am a newbie to engines!! Thanks, Dan __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

11-13-2003, 10:35 PM	#7
oldtrucknut 67-72 truck surgeon Join Date: Jul 2003 Location: Indiana Posts: 155	As long as the lifters are out, you can put it in any way you want as long as you line up the gears before you put the timing chain on. The gear that goes on the cam has a little hole that fits a nipple on the front of the cam. There is only one way to put it on, as is the crankshaft gear. __________________ 1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182

11-13-2003, 10:48 PM	#8
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	Gotcha!! Thanks for the help oldtrucknut!! __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

11-13-2003, 10:51 PM	#9
oldtrucknut 67-72 truck surgeon Join Date: Jul 2003 Location: Indiana Posts: 155	One other thing, make sure that you put the safety tab plate on the gears when you install them, they should be in your new kit. It is a thin metal plate that goes under the bolt heads, then you pry them up over the heads, so they will not loosen and fall out. Glad that I could help out!! __________________ 1969 Chevy C10 1993 Toyota Camry LE 1999 Ford F250 Super Duty 4x4 diesel 2008 Dodge Charger Super Bee 1953 International R182



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