Altima XE L4-2.4L (KA24DE) (1999)
3. Install idler sprocket and lower timing chain.
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Fit lower timing chain on the sprockets, aligning mating marks.
4. Install tension arm and chain guide.
5. Install lower timing chain tensioner.
6. Apply a continuous bead of liquid gasket to front cover.
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Use Genuine RTV silicone sealant Part No. 999MPA7007 or equivalent.
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Be sure to install new front oil seal in the right direction.
7. When installing front cover, install new cylinder head gasket, cylinder head and cylinder head bolts.
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Apply new engine oil to bolt threads and seat surfaces.