When does it make sense to replace a camshaft?
A warped cylinder head could theoretically also warp the cam shaft but i would not just replace it, i would check it first. Place the cam in a set of V blocks. Put a dial indicator on the bearing surface and spin the camshaft. Watch how much the dial indicator deflects. The appropriate engine manual will have the warpage specs.
How much does a bad camshaft sensor cost?
In this case, because of an inaccurate reading from a bad camshaft position sensor, more fuel than necessary is injected into the engine which causes your fuel economy to drop. To replace a camshaft position sensor, you can expect to pay anywhere from $120 to $300. Parts alone will run about $50 to $200.
Is it worth it to grind aftermarket cams?
With so many good aftermarket cam manufacturers out there and the ability to have them grind pretty much whatever you want, this procedure has pretty much fallen from favor. Machining costs are greater than what something from a cam manufacturer would cost, so why go through the hassle. Other answers have well covered how cams are inspected.
What do you need to know about camshaft position sensor?
The camshaft position sensor (CMP) is just one of the many electrical parts found in a vehicle. We’ll go over what this component is, the symptoms of a bad camshaft position sensor, and what you can expect its replacement cost to be when it’s faulty.
Where is the cam on a new engine?
On newer style engines, the cam (or cams) is on top of the cylinder head and drives the valves more directly. In order to remove the cylinder head, the camshaft has to be removed, which also means removing either the timing belt or timing chains.
Is it easy to match cams and cylinder heads?
That may seem like a long introduction to matching camshafts and cylinder heads, but the brutal reality is that massive mismatching is something that happens almost on a daily basis. On the surface, it may seem easy enough to merely match up big intake ports with a big cam and you’re in business.
What happens when the camshaft of an engine goes bad?
There can be many reasons why your camshaft has gone bad, including worn lobes, worn lifters, bad bearings, or even a broken camshaft. A broken camshaft can have a major impact throughout the top end of your engine, doing serious damage to parts like the crankshaft, cylinder block and head, valves, pistons, and connecting rods.
What kind of camshaft does a V8 engine use?
Most American-made V8 and V6 engines use in-block camshafts, which means you may have to pull the engine out to do the swap. Many engines using overhead camshaft configuration actually have multiple camshafts, such as a Dual Overhead Camshaft (DOHC).
What do you remove from an engine to install a camshaft?
With the cover off the engine, remove the three upper timing-chain bolts, along with the lower timing gear if a new timing chain is to be installed.
Is the intake and exhaust camshafts chain driven?
Intake and exhaust valves are actuated by roller cam followers supported by hydraulic valve lifters. The intake and exhaust camshafts are chain-driven. The variable timing of the intake camshaft is accomplished through the INA camshaft adjustment system (page 11).