I am sure I bought this cam from Delta, but I am finding the intake and exhaust lifts to be different from some posts here. I am trying to diagnose a low idle vacuum condition.
I get valve lifts of intake 0.4153" and 0.0685" at overlap. Exhaust lift 0.3975" and 0.1093" at overlap. I dont have a degree wheel to check the durations accurately. I can't seem to match what I have to what I thought I had (Delta 250s?). My measurements are all valve lift, not lobe heights. I thought that is the standard and would expect those below are lifts not lobe heights?
Some other threads in my research...
Camshaft - https://forum.ih8mud.com/threads/camshaft.214012/page-6
forum.ih8mud.com
forum.ih8mud.com
Any help identifying the cam or otherwise? I am getting ~8" of vacuum at idle with lots of efforts checking and rechecking timing, vacuum leaks, AFRs...do I maybe have a Delta KC859? I have emailed them too.
Thanks!
I get valve lifts of intake 0.4153" and 0.0685" at overlap. Exhaust lift 0.3975" and 0.1093" at overlap. I dont have a degree wheel to check the durations accurately. I can't seem to match what I have to what I thought I had (Delta 250s?). My measurements are all valve lift, not lobe heights. I thought that is the standard and would expect those below are lifts not lobe heights?
Some other threads in my research...
Camshaft - https://forum.ih8mud.com/threads/camshaft.214012/page-6

Valve Adjustment with RV Cam Grind


How much vacuum are you pulling with your Delta 250S cam?

Any help identifying the cam or otherwise? I am getting ~8" of vacuum at idle with lots of efforts checking and rechecking timing, vacuum leaks, AFRs...do I maybe have a Delta KC859? I have emailed them too.
Thanks!
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