#1
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Timing belt replacement 2000 3.3
I pulled in to my garage as usual shut engine off, next morning engine would crank but would not start. I pulled distributor cap off and rotor was not moving when engine was attempted to start. Found out that timing belt was stripped at crankshaft. Got new belt and installed but had to rotate cam sprockets to get them in the designated timing positions. Then manually turned crank to same. #1 up and installed new belt per specs. Reassembled and set timing to 15 degrees BTC. Started engine and runs well even up around 3000rpm. Scan shows no codes, but engine exhaust sounds weird and gas and exhaust fumes very bad. When put into gear (auto) it runs very rough and rpm drops to around 750. What could I have done wrong or suggestions please.
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#2
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Did you set ignition timing?
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Nissan Master certified Technician
Hybrid and GTR certified EV certified ASE Master Certified. |
#3
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Yes to 15 degrees BTC. Does the camshaft sprocket timing mark line up with the backplate timing mark every sixth revolution. I had to back the left cam up to line up with the mark and the timing belt mark.
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#4
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Did you have the throttle position switch disconnected when you set the timing? If I remember correctly you have to have it disconnected so the computer doesn't advance the timing.
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#5
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No I didn't. I didn't read anything about that in the Nissan service manual, downloaded from nissan help.com. Thanks for the info.
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#6
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The timing sprocket marks on the cam gears never line up with the marks on the rear cover exactly. Timing is correct when the arrow on the timing belt points towards the front of the vehicle, the dashed line lines up with the timing mark on the right (passenger side) cam sprocket, and the two solid lines line up with the timing marks on the left (driver's side) cam sprocket and crank sprocket, respectively. You should not need to adjust the ignition timing due to a timing belt replacement (assuming it was properly adjusted before-hand). If it was a off when you checked it, you may have the belt incorrectly installed. Another possibility is you bent one or more exhaust valves. They usually don't bend when the failure occurs during a startup scenario, but it is an interference engine, regardless. Compression and/or cylinder leakdown test would confirm this possibility.
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2000, belt, replacement, timing |
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