Trolleybus Posted February 23, 2019 Report Share Posted February 23, 2019 Just pulled my cam after about 5000k to fit a different one and find four of the followers are pitted. This is obviously because the engineer resurfaced the old ones and declared them good to use. There is no damage to the cam shaft. The question is can this damage on the followers cause a ticking noise like a loose tappet. Link to comment Share on other sites More sharing options...
JohnD Posted February 23, 2019 Report Share Posted February 23, 2019 Certainly can! New set indicated, right through. John Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 23, 2019 Report Share Posted February 23, 2019 Agree and also check the bores in the block if worn these give tappety noises you cant resolve Pete Link to comment Share on other sites More sharing options...
Trolleybus Posted February 24, 2019 Author Report Share Posted February 24, 2019 15 hours ago, Pete Lewis said: Agree and also check the bores in the block if worn these give tappety noises you cant resolve Pete Thanks Pete and John, splains a lot. The engineer alos ground the outside, said they were too tight. I purchased a new set for the new cam. Bernard. Link to comment Share on other sites More sharing options...
Pete Lewis Posted February 24, 2019 Report Share Posted February 24, 2019 they should have a bedding in sequence to follow to ensure they mate up correctly they say they were too tight ...check the follower bores its not uncommon for them to pick up and score the bores Pete Link to comment Share on other sites More sharing options...
JohnD Posted February 24, 2019 Report Share Posted February 24, 2019 Agree about bedding in, but never seena supplier - er - supply one. I'd say, cam lube on the cam lobes and base of the follower, engine oil or graphogen on the follower sides. Fill the followers with oil to provide splash to bore walls from first start. A first start-up, be sure that oil is reaching the rocker shaft. Running the engine with no spark plugs, until you see oil pressure and delivery to the rockers can help. Run the engine for a minimum of 20 mins, no load, varying the revs between 1500 and 3K all the time. Done. John Link to comment Share on other sites More sharing options...
RogerH Posted February 25, 2019 Report Share Posted February 25, 2019 In the mid-2000's I bought a set of standard followers from one of the big suppliers for my 4A. Half of them would not fit in the block. Back at the shop I explained the situation. The counter chap brought out a box from the stores with about 100+ followers in - all clattering about. I measured all the followers and put them in groups of 0.0005" and took my 8. The counter chap swept them all into the box. I mentioned to him that putting them in sized bags would have been a good idea - nothing happened. Brain not engaged. Roger Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now