318 head porting for the average joe
need your help wild and crazy guy ! duplicating this question from my restoration thread
Working a freshening up my 318 646 heads, motor has 14 thousand KM's on it.. built by an engine shop 10 years ago.
Motor is apart and I pulled the valves from 1 cylinder to look them and the ports over.
On The exhaust valve, the seal had ridden up inside the valve spring.. not on tight on the base as the intake size was.. Is that wrong?
2nd question I had to use a center punch to push the exhaust valve out of the head, really had to use a lot of force to remove it. small bits of brass left in the valve lock grooves when it came out.
Is that normal ?.. Intake valve popped out no problem.??
3rd and final for today What do you think caused the build up on this intake valve.. This motor has 14 thousand KM's on it. I know it was running rich for many of those miles prior to dialing it in with wideband air/fuel setp.
Thanks ! Ken
Attached Images
need your help wild and crazy guy ! duplicating this question from my restoration thread
Working a freshening up my 318 646 heads, motor has 14 thousand KM's on it.. built by an engine shop 10 years ago.
Motor is apart and I pulled the valves from 1 cylinder to look them and the ports over.
On The exhaust valve, the seal had ridden up inside the valve spring.. not on tight on the base as the intake size was.. Is that wrong?
2nd question I had to use a center punch to push the exhaust valve out of the head, really had to use a lot of force to remove it. small bits of brass left in the valve lock grooves when it came out.
Is that normal ?.. Intake valve popped out no problem.??
3rd and final for today What do you think caused the build up on this intake valve.. This motor has 14 thousand KM's on it. I know it was running rich for many of those miles prior to dialing it in with wideband air/fuel setp.
Thanks ! Ken
Attached Images