Questions? Looking for parts? Parts for sale? or just for a chat,

The WD Motorcycle forum

WD Motorcycle forum
Start a New Topic 
cylinder head tension

After reading the recent posts on head gaskets I decided to check the tension on my M20 as per Ian's article in the tech section. I have a composite gasket as that is all that I could get in West Aussie and it has been on for considerable time without any problems. The head bolts only tightened down a fraction at 30ft/lb, so all seems okay. I intend going for a ride this coming week and the location is quite hilly at times and wanted to make sure all was correct.

I also have a M21 with a alloy head. My question to anyone who can advise is the head bolt tension the same. Normally alloy heads have a lower torque value than a cast iron head. Checking the M21 at 30ft/lb and it will tighten up considerably. Thanks in advance.

email (option):

Re: cylinder head tension

30 will be fine for the alloy head
What is more importnt are large thick washers or you risk collapsing the bolt hole on to the bolt.

email (option):

Nieuwe pagina 1