Can You line up the timing marks on a Toyota Tundra?
With the crank set to “TDC”, the camshafts can be aligned to the factory timing marks or 180 out of phase and the engine will still run. The Toyota V8 uses an “DISTRIBUTORLESS” ignition system, so…… gone are the “old days” of needing to determine if the engine is on the intake or exhaust stroke prior to “droppin in the distributor”.
Where are the timing dots on a Toyota?
On the crankshaft, the factory Toyota replacement timing belt has dots that align with a mark on the crankshaft sprocket: The crankshaft sprocket tone wheel for the crankshaft position sensor also has a dot that aligns with a casting mark on the oil pump:
Where are the timing marks on a Toyota 3MZ?
Front camshaft, note the mark on the sprocket, belt and backing plate all line up: Rear camshaft, note the arrow indicating the mark on the backing plate. The timing of the belt looks 1/4 tooth off due to the angle of the camera but is correct (compare the sprocket mark to the backing mark and belt mark to the sprocket mark).
Where is the timing belt on a Toyota?
Here are photos of the camshaft and crankshaft locations with a factory Toyota replacement timing belt installed: Front camshaft, note the mark on the sprocket, belt and backing plate all line up: Rear camshaft, note the arrow indicating the mark on the backing plate.
Which is Bank 1 cam to cam chain?
The first two are for the exhaust/intake camshaft timing. The last chain is the main cam/crank timing chain and is set up much like a timing belt. Lets look at bank 1 Cam to Cam chain and look at the marks. This view would be from the back side of the gears. Here’s a look at the marks installed on the engine…
When is the topdeadcenter position on a Toyota Tundra?
TopDeadCenter “position” is reached on each turn of the crankshaft – however the TDC for engine timing purposes is only reached every other crankshaft rotation. (Four-cycle engine). TDC occurs at the end of the compression stroke of a piston when it has reached the top of the cylinder bore and is ready for the spark plug to fire.
When does TDC occur in a Toyota Tundra?
TDC occurs at the end of the compression stroke of a piston when it has reached the top of the cylinder bore and is ready for the spark plug to fire. For the purpose of setting the timing between the camshafts and crankshaft (SetEngineTiming) yes, you would need to know whether the crank was on exhaust or compression stroke.
How to line up timing marks, no belt on?
Very good writeup, but just one clarification. On #6, rotate the engine and check the crank and cam pully marks for correct alignment. The belt marks will take many revolutions to all line up exactly as you installed the belt. A couple of rotations is all that is required to know you have it right.
Where is the timing chain located on a Toyota RAV4?
Timing chains are located within the engine. They receive lubrication from the engine oil and are able to last a long time. Timing belts are located outside of the engine and because of that, they do tend to dry out and crack easily. Does my Toyota Rav4 Have a Timing Belt or Chain?
Can you tell if a car has a timing belt or chain?
Yes, you read that right, it all depends on the year. All new vehicles come with an owner’s manual that will tell you whether or not your vehicle has a timing belt or chain because they may vary from year to year or by the manufacturer.