Harley Ironhead Intake O-Ring Flange, The Definitive Repair... Nbr. 46 

Thanks...

I suspect parts are hard to find and I know shipping is very expensive. I guess you have to be dedicated overseas to stick with old iron.

Thanks, I've done several of these now, it really seems to work well.

Glad you like them!

Yes, that is a satisfying repair to do.

I've been tempted to try to weld cast, one of these days I'll give it a go. Maybe do a video on it.

Contact me here: www.ironheadcycle.com/pages/contact.html

I thought so, thank you!!!

Thank You!!! The Big Five-Oh. Free cylinder head intake manifold flange repair to the next person who asks for it, contact me at my website: www.ironheadcycle.com/contact-us.php

It's all yours, just get in touch with me when you want it done.

I would never use a rubber band seal on an o-ring head. The o-ring style heads do not have enough meat sticking out for the rubber band to seal effectively. When you tighten the clamp down, the rubber band squeezes down into the recess for the o-ring and effectively pushes the manifold away from the head. You can buy plastic rings to fill the recess for the o-ring, they don't work worth a shit and deform and collapse after a period of time. A carefully installed o-ring with a stainless steel t-bolt band clamp seals just fine on an o-ring head. I have actually pressure tested the installed o-rings and band clamps just to check the sealing and they pass with no leaks.

@@IronHeadCycle Seen this done recently. Like you said pushes intake out of alignment doesn’t seal at all

@@jj4414 The o-ring manifold with stainless steel t-bolt clamps is the best arrangement.