rocker box cap screws

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jim-nz
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rocker box cap screws

Post by jim-nz »

Hi i am hoping to find out rocker box fasteners work when fitting a long carillo connecting rod. Do the all need to be counterbored cap screws flush with where the nuts usually seat or is that only for certain screws.
Barry Creary
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Re: rocker box cap screws

Post by Barry Creary »

When I did the conversion I just heli-coiled and put fibre washers under the head :thumb
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Re: rocker box cap screws

Post by minetymenace »

"all need" probably not, but for aesthetics normally all fixing screws for a cover match! Replacing the studs/nuts with bolts (Allen and counter-bored) means you should be able to get the rocker box off without removing the engine (even with a long rod).
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Barry Creary
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Re: rocker box cap screws

Post by Barry Creary »

Yep minety that’s exactly why I did it had the head off many times to fix the leaks as I’m sure lots of others have 🥺
Momus
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Re: rocker box cap screws

Post by Momus »

Barry Creary wrote: Thu May 14, 2020 5:32 am When I did the conversion I just heli-coiled and put fibre washers under the head :thumb
You should join a circus Barry.
If you love it, lube it.
jim-nz
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Re: rocker box cap screws

Post by jim-nz »

Okay thanks for the replys.

So what i am taking from this is that i do have to use screws instead of studs and nuts if i want to be able to get the rocker box off with the engine in the frame.

I thought one of the reasons for this also was that a long rod engine could not be fitted into the frame with the rocker box on and it needed to be fitted once the motor was in the frame. is this not the case?
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