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Flanged cylinder head nuts, are washers needed?
Posted: Sat Jul 12, 2025 7:12 pm
by Joeck
I am fitting a new set of uprated cylinder head studs and flanged nuts as part of my rebuild and, having perused previous posts, am a little confused ( not unusual for me !) as to wether or not they require hard washers to be fitted ?
Thanks
Joe.
Re: Flanged cylinder head nuts, are washers needed?
Posted: Sat Jul 12, 2025 9:40 pm
by philthehill
There is absolutely no need for washers (hard or not) under the flanged nuts.
The flange acts as the washer.
The nuts with flange are of a much better quality/standard than the old Minor head nuts and that is why with the uprated studs the torque can be raised to 50lbf ft. The nuts must be fitted and torqued without lubrication.
https://www.minispares.com/cam4545-head ... inder-head
Re: Flanged cylinder head nuts, are washers needed?
Posted: Sun Jul 13, 2025 5:50 pm
by Joeck
Thanks again for your prompt reply and very useful information.