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| Forged Rockers https://ausmini.com/forums/viewtopic.php?f=2&t=97923 |
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| Author: | cooperess [ Tue Nov 06, 2018 4:06 pm ] |
| Post subject: | Forged Rockers |
Attachment: Mini Forged Rocker Arm 002.jpg Attachment: Mini Forged Rocker Arm 001.jpg What is the purpose of the arrowed hole? |
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| Author: | drmini in aust [ Tue Nov 06, 2018 9:36 pm ] |
| Post subject: | Re: Forged Rockers |
To spray oil around the valve gear. To lube the rocker ends. But not needed, it's pretty foggy with oil up there anyway. Later rocker designs don't have them. |
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| Author: | cooperess [ Tue Nov 06, 2018 9:41 pm ] |
| Post subject: | Re: Forged Rockers |
Thanks drmini in aust. Where does the oil come from? The hole does not go through the bush. |
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| Author: | drmini in aust [ Wed Nov 07, 2018 7:29 am ] |
| Post subject: | Re: Forged Rockers |
it is supposed to. Someone has changed the bushes. And not drilled through them. |
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| Author: | cooperess [ Wed Nov 07, 2018 8:02 am ] |
| Post subject: | Re: Forged Rockers |
drmini in aust wrote: it is supposed to. Someone has changed the bushes. And not drilled through them. Offset bushes have been fitted, so there are 2 hole holes, a large one for the adjust and small one for the oil mist. Am I correct?
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| Author: | drmini in aust [ Wed Nov 07, 2018 12:18 pm ] |
| Post subject: | Re: Forged Rockers |
Yes. I have done a few sets with offset bushes. Don't believe anybody that says offset bushes will give S rockers a 1.5:1 ratio. I made .044" offset bushes (is more than the ones being sold) and only just got to 1.3:1 with pressed steel (1.2:1) 998 rockers. And stock forged S rockers are even worse at 1.16:1 ratio. These lift ratios calculated on a 1275 head with Graham Russell RE13 cam (.290" lobe lift). If you do want 1.5:1, buy new rockers. 
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