S54 Vanos post Beisan/DV Rebuild Timing Issue

[Cubieman]

Hello, I did the vanos rebuild using Beisan seals, oil pump disc (New one with 2 holes), chain guides, BMW S62 hub diaphrams etc..., and I got DRVanos Intake+Exhaust spline gears.

After mounting the Vanos and tightening the hub bolts (and checking that the timing is spot on), and then turning the crankshaft over the engine is always out of time slightly by the same amount. The timing ALWAYS is off by the same amount after turning the crank over the first time. no matter how i tighten the bolts etc. The bridge never sits flush.

I have used a brand new BMW bridge to set/check the timing (following beisan guide to the letter). The timing bridge is always raised maybe 2ish mm on the intake side for both camshafts.

What I have tried:
Beisan Readjustment procedure (same result)
Take off Vanos unit and try mounting again (follow Beisan procedure to the letter)
Take vanos unit off and verify I assembled it correctly
Ordered a new BMW bridge (incase the first one was off?)
Check that I put the sprockets/hubs on correctly


I have done and redone the hub/adjustments or remounted the vanos I want to say 50 times (not exagerating) following beisan guide to the letter. The only thing I can see is that when the vanos unit is fully mounted and both splines are fully retarded/in the hub, I do not see any of the diagonal splines from my exhaust side, and can barely see any on the intake side.

Update:

Apparently this has happened to others and biasing the initial timing to offset my error has been a solution. I just do this.

I had a hell of time with this as well, maybe you read my thread(s). I had the crank biased 2mm CCW and it ending up fixing the issue.
However for reasons unknown to me I tried one final time without biasing and it fell into place, it wasn't perfect though. Bridge was dead nuts flat on intake cam but lifted approximately .15-.2mm on intake side of head when testing exhaust cam.
Just said fuck it, not going to be perfect and it ended up within spec after all was said and done. Others have gotten their timing nailed down better than I managed on here but I'm sure others have done worse as well.

Glad to hear you resolved it.

[Joshb556]

Hello, I did the vanos rebuild using Beisan seals, oil pump disc (New one with 2 holes), chain guides, BMW S62 hub diaphrams etc..., and I got DRVanos Intake+Exhaust spline gears.

After mounting the Vanos and tightening the hub bolts (and checking that the timing is spot on), and then turning the crankshaft over the engine is always out of time slightly by the same amount. The timing ALWAYS is off by the same amount after turning the crank over the first time. no matter how i tighten the bolts etc. The bridge never sits flush.

I have used a brand new BMW bridge to set/check the timing (following beisan guide to the letter). The timing bridge is always raised maybe 2ish mm on the intake side for both camshafts.

What I have tried:
Beisan Readjustment procedure (same result)
Take off Vanos unit and try mounting again (follow Beisan procedure to the letter)
Take vanos unit off and verify I assembled it correctly
Ordered a new BMW bridge (incase the first one was off?)
Check that I put the sprockets/hubs on correctly


I have done and redone the hub/adjustments or remounted the vanos I want to say 50 times (not exagerating) following beisan guide to the letter. The only thing I can see is that when the vanos unit is fully mounted and both splines are fully retarded/in the hub, I do not see any of the diagonal splines from my exhaust side, and can barely see any on the intake side.

Update:

Apparently this has happened to others and biasing the initial timing to offset my error has been a solution. I just do this.