12G940 Valves
#1
Posted 17 November 2018 - 10:12 AM
#2
Posted 17 November 2018 - 11:48 AM
take them to your friendly engine builder and they will be able to supply and advise. ie replace them all and maybe replace guides and re cut seats. you may not be too far from Mr Dodd have a chat with him.
#3
Posted 17 November 2018 - 02:49 PM
That's got to be Mini Spares' AEG594 surely?
If they must be 30.71mm but come slightly bigger it's no problem at all to make them smaller, what ever size you like but I think I'd leave them as are.
#4
Posted 17 November 2018 - 03:50 PM
https://www.minispar...|Back to search
Ac
#5
Posted 17 November 2018 - 05:20 PM
They are these, your ones have likely been cleaned a few times I there life and are now Little small.
https://www.minispar...|Back to search
Ac
Are those valves Nimonic?
#6
Posted 18 November 2018 - 01:30 AM
Ac
Edited by ACDodd, 18 November 2018 - 01:30 AM.
#7
Posted 18 November 2018 - 07:27 AM
#8
Posted 18 November 2018 - 12:20 PM
#9
Posted 18 November 2018 - 12:34 PM
Ac
#10
Posted 18 November 2018 - 01:01 PM
#11
Posted 18 November 2018 - 05:03 PM
The shorter 'S' valves will fit in a 940 head, but be aware that the springs will go coil bound at lower lift.
If you're using high lift rockers or a radical cam profile then you will need to measure very carefully. If required the valve seats in a 940 head can be machined down to suit the shorter valves, but may you need to find a specialist machine shop for this.
#12
Posted 19 November 2018 - 09:17 AM
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