Forged rocker arms

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moggiegeek
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Forged rocker arms

Postby moggiegeek » Wed Mar 13, 2019 5:22 pm

A long shot I know but... I'm looking for two or three forged rocker arms to refurbish a set I am planning to use.

philthehill
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Re: Forged rocker arms

Postby philthehill » Wed Mar 13, 2019 8:29 pm

Just a couple of points to look out for when buying rockers.

1. The adjusting screws come in different sizes so you need to make sure your new rockers have the same screw and nut as the ones already fitted so as to keep the balance and wear rates the same.

2. Some of the early forged rockers are fitted with hollow and waisted adjusting screws. Those hollow and waisted screws should be discarded as that type of screw can fracture. BMC realised this and changed the adjusting screw to full thread without the waist and hollow (which was done to allow oil to reach the ball end of the adjusting screw and the bottom of the push rod).

All the rockers should be the same profile/style and the adjusting screws should also be the same type/style without hollow and waist.


moggiegeek
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Re: Forged rocker arms

Postby moggiegeek » Thu Mar 14, 2019 6:51 pm

Helpful. Thanks. I can see a new set of rockers being one solution..... Argh.
However I do have pressed steel and sintered assemblies but for the new engine I had set my heart on forged. I've never actually seen forged rockers for sale individually - any ideas?

seriesmm_1
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Re: Forged rocker arms

Postby seriesmm_1 » Thu Mar 14, 2019 7:36 pm

pm sent
regards
BrianR


philthehill
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Re: Forged rocker arms

Postby philthehill » Thu Mar 14, 2019 8:39 pm



moggiegeek
Minor Fan
Posts: 118
Joined: Sun Mar 14, 2010 9:06 pm
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Re: Forged rocker arms

Postby moggiegeek » Sun Mar 17, 2019 6:55 pm

Solved, thanks to mmoc! Many thanks


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