worn out rockers.
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Senior User
Joined: Nov 2002
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From: ca
worn out rockers.
Ive had a bit of chatter in my motor and upon taking off my valve covers I discovered that 2 of my rockers have side to side play in them even when properly torqued down.
When I took one off and inspected it it was installed properly but it have grooves worn in indicating that at one time the rocker rail had been put in backwards.
first is it likley that this is the source of my noise? second will I have a problem simply installing 2 new rockers?
When I took one off and inspected it it was installed properly but it have grooves worn in indicating that at one time the rocker rail had been put in backwards.
first is it likley that this is the source of my noise? second will I have a problem simply installing 2 new rockers?
Posting Legend
Joined: Sep 2001
Posts: 30,255
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Remember that depending on crankshaft/cam position several of your rockers will be loose if your lifters are not pumped up.
You may have stuck lifters, worn pushrods, or rockers. Check the lifter preload and make sure the lifters are all functioning. Check the pushrod lengths. Scoring in the rocker mount can indicate excessive wear. The Ford OEM service manuals that are available on CD from the online store here are your best source of service wear limits.
You may have stuck lifters, worn pushrods, or rockers. Check the lifter preload and make sure the lifters are all functioning. Check the pushrod lengths. Scoring in the rocker mount can indicate excessive wear. The Ford OEM service manuals that are available on CD from the online store here are your best source of service wear limits.
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Senior User
Joined: Nov 2002
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From: ca
the pushrods, cam, lifters, valves, springs, etc. are all new and appear to be fine.
but would this side to side movement cause the engien noise?
I understand that If the lifters arent pumped up you will get up and down play but why would you get side to side play? doen't the grooves in the sleds or what ever its called prevent this?
but would this side to side movement cause the engien noise?
I understand that If the lifters arent pumped up you will get up and down play but why would you get side to side play? doen't the grooves in the sleds or what ever its called prevent this?
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Check the lifters in those bores where the lifter preload was incorrect. Running an engine without proper preload can damage the retaining ring and destroy the lifter. I hope you checked the preload on all the lifters.
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