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Degreeing camshafts when mounting

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Hello André

You are talking about degreeing the camshaft, but first you check your cam timing and if necesarry you make some corrections,totally logical.

But, how do you proceed, if you build the engine. Let's say there are no marks on the camshafts, or you put for some reason an intake cam to the exhaust side. So by this i mean, you should make shure, when mounting the cams, that they are mounted almost in the correct possition, because if not the valves can hit the piston, or eachother.

I show an example, on a B18 engine as well:

CAMS:Skunk prostage 2+ for honda B engine (https://skunk2.com/engine/camshafts/pro-series-camshafts-193.html)

CAM SPECS:

Intake Duration / Lift: 200° / 12.801mm

Exhaust Duration / Lift: 276° / 11.988mm

Intake Centerline: 98°

Exhaust Centerline: 106°

Valve Clearance (Intake / Exhaust): .007” / .008”

RPM Range: 1,500 - 9,400 rpm

HP Gains: 20 - 25 hp

Torque Gains: 18 - 22 lb-ft

So you only have the centerlines, but no lift at TDC, or valve diagram ect. How wil you proceed on mounting this camshafts, without the risk of damaging the valves.

The cams should have markings for intake and exhaust to avoid any confusion. in the case of the B16/B18 however the inlet cam has the drive spline for the distributor so you can't get them wrong.

It's possible to degree the cams using the centerline method, but it's not preferable for the reasons stated in the webinar. If you have no other specs and can't get them then you would have no option.

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