What causes a cam to move back in the block?
When installing a new cam, timing gears, or thrust plates, be sure to verify end play after the cam bolts are torqued to factory specs. If the end play is excessive, it will cause the cam to move back in the block, causing the side of the lobe to contact an adjacent lifter.
Where is the camshaft located in an overhead cam engine?
A short chain or gear set works well in this kind of application because the camshaft is located in the block just above the crankshaft. In overhead cam (OHC) engines, the camshaft is located high in the cylinder head far from the crankshaft.
What should the end play be on a camshaft?
Some engines use a thrust plate to control the forward and backward movement of the camshaft in the block. The recommended amount of end play on these types of engines is between .003- to .008-inches. Many factors can cause end play to change.
Where does the timing chain go on a pushrod engine?
As a rule, most pushrod engines use a timing chain to drive the camshaft, though some older four and six cylinder engines use a gear set. A short chain or gear set works well in this kind of application because the camshaft is located in the block just above the crankshaft.
Can a camshaft be removed from an engine?
Though using a camshaft removal tool is ideal, if your budget is tight you can work the cam out of the engine block by twisting it slowly and carefully, taking precaution not to scratch or gall the bearings. If you want to change the timing wheel, chain, or any other components in the assembly, you’ll also want to remove these, correspondingly.
Where is the 3 bolt camshaft gear located?
GM part number 12576407. D – Three bolt camshaft gear from a 1997-2004 LS1, LS6 or other Gen III V8 engines. No reluctor teeth are on the timing chain gear since the camshaft position sensor is at the back of the block and senses the camshaft speed from the reluctor machined into the back of the camshaft itself. GM part number 12552953.
How do you remove a cam from an engine block?
Remove the old cam. Though using a camshaft removal tool is ideal, if your budget is tight you can work the cam out of the engine block by twisting it slowly and carefully, taking precaution not to scratch or gall the bearings.
What kind of sprocket do I need for a 3 bolt camshaft?
To install the earlier style camshaft with the three-bolt sprocket you need this kit. Kit includes three-bolt sprocket, 3 camshaft bolts, chain damper & special bolts with sleeves required to install. A – Single bolt 4X camshaft gear from a 2007-2014 LS2 or LS3 engine. GM part number 12591689.