when changing the timing belt on an infinity j30 entire front end of the engine have to be removed. to get to the covers. once covers are removed line all sprockets including the one behind the harmonic balancer. the back belt covers have a raised bump to line the sprockets to.
two chains
The 2000-2001 Infiniti I30 engine (vq 30 de) has a timing chain. There is no scheduled maintenance for the chain as it does not require periodic adjustment. These timing chains are purported to last around 300,000 miles. Also these engines are not interference engines. They do no internal damage if timing chain breaks.
This might help if you have a Daewoo Nubira/Lacetti 1.4L/1.6L. What you need is a timing belt adjuster and a angular torque gauge for this operation. First start with the removal procedure; Disconnect the negative battery cable, the air cleaner outlet hose from the throttle body and the breather tube from the camshaft cover. Then remove the air cleaner housing, the right front wheel and the right front wheel well splash shield. Remove the serpentine accessory drive belt and the crankshaft bolts and pulley. Then remove the upper front timing belt cover bolts and the upper front timing belt cover. Continue with the removal of the lower front timing belt cover bolts and the lower front timing belt cover. At this time install the crankshaft pulley bolt and rotate the crankshaft clockwise until the timing mark on the crankshaft gear is aligned with the notch at the bottom of the rear timing belt cover. Slightly loosen the water pump retaining bolts. Using the timing belt adjuster, rotate the water pump counterclockwise to release the tension on the timing belt. Remove the right engine mount bracket and then you can remove the timing belt. Then countinue with the installation procedure; Align the timing mark on the crankshaft gear with the notch on the bottom of the rear timing belt cover. Align the timing marks on the camshaft gears. When this is done install the timing belt. Install the right engine mount bracket. Rotate the water pump clockwise using the timing belt adjuster. Rotate the water pump clockwise until the adjust arm pointer of the timing belt automatic tensioner is aligned with the notch in the timing belt automatic tensioner bracket. Tighten the water pump retaining bolts. Rotate the crankshaft two full turns clockwise using the crankshaft pulley bolt. Loosen the water pump retaining bolts and rotate the water pump until the adjust arm pointer of the timing belt automatic tensioner is aligned with the pointer on the timing belt automatic tensioner bracket. Tighten the water pump retaining bolts and remove the crankshaft pulley bolt. Then install the upper and lower front timing belt covers and their bolts. Tighten the front timing belt cover bolts. Install the crankshaft pulley and the crankshaft pulley bolt. Tighten the crankshaft pulley bolt and retighten 30 degrees plus 15 degrees. Install the serpentine accessory drive belt and the right front wheel well splash shield. Install the right front wheel, air cleaner housing and reconnect the air cleaner outlet hose to the throttle body and the breather tube to the camshaft cover. And finally remember to connect the negative battery cable.
Many people recommend to purchase a Toyota Repair mannual. I think it is around $15.00 USD. The belt cost around $30-$40 and it takes around 4-5 hours to get done. I think if you check out some specials from Toyota Dealer, they charge around $300 for a timing belt change.
The water pump is located under the timing belt cover. It is a Timing belt driven water pump. Recommend a professional mechanic replacement if needed. It usually costs about $250.00 Labor $100 for the water pump and about $30 for the timing belt.
Try at Dayco.com often the belt diagram is printed on the cardboard sleeve that the belt is packaged in
first remove battery,and cooling fans, support the motor with a jack stand you have to remove the front motor mount, remove altinator,remove the power stearing pump, front mounting bracket holding motor mount, a/c unit,and belt pullies, plastic covers,once you can see belt remove spring holding timing belt tencher and timing marks l/head marked right side on bracket, r/head mark right side,
Behind the timing cover, while you are there, replace the timing belt, it's only $30.
Assuming you're talking about 30mph....could be the timing belt.
With a properly maintained vehicle a timing chain (not a belt) will last a very long time. Up to 30 years.
4.2 hours give or take 30 min.
loose timing belt, low transmission fluid in transaxle.