This past week I had to replace the catalytic converter on my 1990 L-98 engine. I started to hear a load rattle coming from
the exhaust system. When I replaced the converter I found a major oil leak all around the front chassis of the car. I also began to see oil on my drip pan. I examined the area around the heads and found oil leaking from the rocker covers. This an original
engine and the rockers have never been removed. I checked the 1990 manual and found the 8 bolts on the rockers should be torqued to 90 inch pounds. When I addressed the bolts I found all of the bolts loose. If you have an L-98 engine with 60-65K
miles on it check the rocker bolts. Warning, do not over tighten them as this can crush the gaskets and cause more leaking.
the exhaust system. When I replaced the converter I found a major oil leak all around the front chassis of the car. I also began to see oil on my drip pan. I examined the area around the heads and found oil leaking from the rocker covers. This an original
engine and the rockers have never been removed. I checked the 1990 manual and found the 8 bolts on the rockers should be torqued to 90 inch pounds. When I addressed the bolts I found all of the bolts loose. If you have an L-98 engine with 60-65K
miles on it check the rocker bolts. Warning, do not over tighten them as this can crush the gaskets and cause more leaking.
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