Need some aircraft motor help

[Waterthunder]

Hey guy's I'm building an 0540 for a friend of mine I went to degree his cam and nowhere can I find what centerline his cam is suppose to be at. I have talked to three aircraft engine builders and nobody can give me duration@ .050 or the lobe centerline specs. They all pretty much said we advance them 2 to 4 degrees but nobody knows what stock is. I want to properly degree and phase this camshaft not just advance it and hope it's right. Does anybody know the lobe centerline of a fuel injected angle valve 0540 cam and does anybody know the stock cam specs. I guess I have to call Crane cam's because I know they supply Lycoming with their cams.

 

[jim]

These guys have a cam doctor I believe, so they should know.

http://www.lycon.com/

Here is another possiblitiy:

http://www.barrettprecisionengines.com/

jim

 

[Anonymous]

When you find some specs, could you please post them on here?

I have been looking for some AC cam specs for a while to no avail

 

[MJD291]

I would try calling D&S cams in Edgewater. Aircraft cams is all they do. Their # is 1-800-936-8665. They are really great guys and are really helpful.