Flanged cylinder head nuts, are washers needed?

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
Joeck
Minor Friendly
Posts: 18
Joined: Tue Sep 27, 2022 12:25 pm
Location: West Yorkshire
MMOC Member: Yes

Flanged cylinder head nuts, are washers needed?

Post 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.
philthehill
Minor Maniac
Posts: 11620
Joined: Thu Jul 19, 2012 12:05 pm
Location: Hampshire
MMOC Member: Yes

Re: Flanged cylinder head nuts, are washers needed?

Post 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

Post Reply