How do i remove the bottom timing belt cover on a 1992 nissan maxima do i have to remove the crankshaft pulley , if i have to remove the pulley is the bolt holding it on a right or left hand thread .
Need to take off almost every thing from the front of the motor. then take off top half of timing cover. pull the harmonic balance pully off. then the bottom half of the cover will come off. becareful the cam gears are hard to aline. do you no where the knock sencor is located? if so please email me @ [email protected]
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Remove the engine under covers and drain engine coolant from the radiator; be careful not to allow coolant to contact drive belts.
Remove the front right side wheel and tire assembly. Remove the engine side cover.
Remove the drive belts from the engine.
Rotate the crankshaft to position the No. 1 cylinder at the TDC of it's compression stroke.
Remove the upper radiator hose and the water inlet hose. Remove the water pump pulley.
Remove the idler bracket of the compressor drive belt.
Remove the crankshaft damper. It may be necessary to use a puller to remove the crankshaft damper from the crankshaft.
Remove the upper and lower timing belt covers.
Make sure the punch marks on the camshaft sprockets align with the punch marks on the rear timing belt cover and the punch mark on the crankshaft sprocket aligns with the punch mark on the oil pump.
Fig. 1: Line up the punchmarks on the sprockets with the marks on the rear timing belt cover before removal of the belt
Loosen the timing belt idler pulley bolt. Using a hexagon wrench, rotate the idler pulley to release it's tension and remove the timing belt.
Fig. 2: After the timing marks are lined up, loosen the tensioner and remove the belt
Be careful not to bend the new belt installing it. Timing belts are designed to flex only the way they turn around the pulleys. To install: After removing timing belt, do not rotate crankshaft and camshaft separately, because valves will hit piston heads.
Confirm that No. 1 cylinder is at TDC on its compression stroke. Install tensioner and tensioner spring. If stud is removed apply locking sealant to threads before installing.
Fig. 3: Make sure the aligning marks are correct before installing the timing belt onto the sprockets
Swing tensioner fully clockwise with hexagon wrench and temporarily tighten locknut.
Fig. 4: The tensioner uses a spring to aid in tensioning the timing belt. Be sure to use locking sealant when replacing the stud.
Set timing belt, align the arrow on the timing belt forward. Align the white lines on the timing belt with the punch marks on all 3 pulleys.
There are 133 total timing belt teeth. If timing belt is installed correctly there will be 40 teeth between left and right camshaft sprocket timing marks. There will be 43 teeth between left camshaft sprocket and crankshaft sprocket timing marks
electrical problem.....please check fuse panel and wiring close to the timing belt covers and your worked area.sometimes you stucked the entire wire harness to body when you are tigten the screw.
How to dismantling and change timing belt for CB7 engine: 1. remove elektrik power (+) from accumulator 2. put suport on below engine 3. remove the bolt and left engine mounting 4. remove upper engine cover 5. open side engine cover (timing cover from black plastic) 6. please remember top marking on the crankshaft 7. make to slack tensioner wheel, and remove the belt.
note : there are two timing belt on cb7 engine, smaller and bigger
Let's make sure the Firing Order is correct first: For the 3.0L V-6: Firing Order: 1-2-3-4-5-6 Cylinders:
(back of engine) 1------3-------5 2------4-------6
(front of engine) Distributor:
....(back)
...........1
......6 5..............2
...........3
......4
....(front) Rotation: Clockwise
Next you should be considering based upon your Year (1992) the Timing Belt may be worn and/or skipping. It may be time to remove and replace the Timing Belt. Click on the following Link. It has the Timing Belt & Mark(s) Diagrams you will need.
The water pump is located behind the timing chain cover. There are two black plates on the front cover. The one near the front of the car has the water pump behind it. The other one has the timing chain tensioner behind it. First you must drain the coolant. Then support engine and remove engine mount. Then remove drive belts. Then remove the two black plates. Push the tensioner in and lock it with a paper clip. Then remove the two bolts holding the tensioner and remove tensioner. Then remove the water pump bolts. Rotate engine crankshaft the take tension off of water pump (about 20 degrees). Then install two bolts into water pump threaded flange (M8). Tighten M8 evenly as water pump will come without damaging it. Check for corrosion. Then replace with new one. Make sure you use new "O" rings. Lubricate with engine oil. Put the original three bolts back in the water pump. Then install timing chain tensioner and black covers. Replace belts and engine mounts. Add coolant and pressure test system.
The marks are for an initial reference only. Once the belt is correctly in place and proper tension set, the cam is in time with the crankshaft and will stay that way until the belt breaks or slips from one cog to the next (won't happen if the tension is correct).
After the belt is initially set with the marks lined up, two rotations of the crankshaft (one rotation of the camshaft) will have the marks in a different place. The only exception would be if the belt had an exact multiple of ribs/teeth compared to the crankshaft, and that is not very likely.
Maximas had a timig belt until 1994. Some Maximas from 1992-1994 had chains also, but only the VE30DE models. All VG30 models had timing belt. Since 1995 all maximas (A32, A33, A34 the all new A35) have timing chains and the rarely/never fail. In fact in my 12+ years with nissan, I have't seen/replaced single timing chain in a Maxima, so pretty bullet proof setup and I have had few of those cars and have one right now. Awesome cars, by the way, just keep up with the oil changes and it will run forever. One of my Maximas had 245000 miles, when I was selling it and I still see it on the road here and there. BULLET PROOF engines.
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