Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: KenBourque on February 25, 2012, 21:34:56

Title: rocker arm replacement
Post by: KenBourque on February 25, 2012, 21:34:56

On a '70 280SL, is it necessery to also replace the pivot ball when inserting new rocker arms?  How can you determine if the ball  needs replacing?  I will be replacing the cam shaft.

Title: Re: rocker arm replacement
Post by: Jonny B on February 26, 2012, 00:41:00

Ken,

check the search feature, and Pagoda Notes. We just did a feature on the head reconditioning and it speaks to some of the issues with the ball studs.

Title: Re: rocker arm replacement
Post by: George Des on February 26, 2012, 13:43:27

I agree, check with the search function. I can tell you though in my own case when I did my rebuild, the original ball stud heads had developed a sharp feather edge on the balls. I thought it best to just go ahead and just switch them out for new ones while in there lest these old ball heads cause uneven wear on the new rocker arm mating surfaces. You may even find it difficult to adjust the valve clearances properly unless you do the change out.