Join Date: Nov 2000
Thanked 0 Times in 0 Posts
Re: Help!!!--258 problem
Clicking noises perhaps?
As the oil warms up, it thins out and makes problems more apparent. Pressure drops, and it probably has less lubricating properties.
The noise could the be partial or combined result of any of the reciprocating items in the valvetrain, such as valve stems, rockers and lifters. The cam wears as well, and clearances increase. The hydraulic lifters are designed to accomodate these changes, but over time they wear out as well or get gummed up.
I suspect you will have to replace some worn items in the valve train if you want a solution. If the noise isn't bad, it may not be worth it.
To change the lifters you have to remove the cylinder head.