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| Grub screws in head https://ausmini.com/forums/viewtopic.php?f=2&t=101092 |
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| Author: | Frog Johnson [ Thu Aug 05, 2021 11:39 pm ] |
| Post subject: | Grub screws in head |
Hi all, As the title suggests, there are 4 grub screws in my cylinder head and I don’t know why. There is another bigger one at the heater end as well. Any thoughts on what this is all about? |
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| Author: | murty [ Fri Aug 06, 2021 4:30 am ] |
| Post subject: | Re: Grub screws in head |
Air injection ports I believe for emissions. |
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| Author: | drmini in aust [ Fri Aug 06, 2021 12:06 pm ] |
| Post subject: | Re: Grub screws in head |
As above, were air injection ports. Thread is 7/16 UNF, I use old seat belt bolts and cut them off flush. |
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| Author: | Frog Johnson [ Fri Aug 06, 2021 10:50 pm ] |
| Post subject: | Re: Grub screws in head |
Thanks for the replies. I like your suggestion doc |
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| Author: | drmini in aust [ Mon Aug 09, 2021 12:31 pm ] |
| Post subject: | Re: Grub screws in head |
Just grind those ones flush. A lick of paint and you won't notice them. |
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