2/28/2013
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Figure 1
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Figure 2
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Figure 3
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Revised Camshaft Seals for Acura B18A Engine
There have been complaints of an oil leak on some 1990-’91 Acura B18 engines. The leak appears to be coming from behind the power steering pump bracket, between the engine block and timing belt cover.
To repair or prevent oil leaks around camshaft, use revised camshaft oil seals (p/n 91203-PR4-004).
1) Remove the timing belt and the camshaft pulleys. Note:
There is a small possibility that the timing belt may have been
contaminated with oil if this is a warranty repair. Inspect the belt
and replace it if it has been contaminated. See Figure 1.
2) Remove the No. 1 intake and exhaust camshaft holders and remove camshaft oil seals. See Figure 2.
3) Clean the camshaft holders and camshaft oil seal seats on the cylinder head.
4) Apply a light film of white grease to the lips of the new oil
seals. Carefully slide the seals onto the camshafts. Make sure the seal
lips are not distorted and the seals are bottomed out in their seats.
5) Apply liquid gasket (p/n 08718-0001) to the cylinder
head mating surfaces of the camshaft holders, then install the holders
onto the head. Tighten the camshaft holder bolts to 7 ft.lbs. (10 Nm).
See Figure 3.
6) Install camshaft pulleys and timing belt.
Some or all of this information was provided by the Automotive
Parts Remanufacturers Association (APRA). For more information on
technical bulletins available through APRA call 703-968-2772 or visit www.AutoBulletins.com.