hotdawg1984
Member
Ok, this is on my 8n. As previously stated, I rebuilt this engine one time but dirt dobbers managed to make nests in the engine while the pan was off.
I am re-doing the whole thing again. New everything and complete block wash. Down to the valves which were all new before but after close examination I noticed that the seats and valve face had become tarnished with no seat to valve mark.
That tells me that the valves were not seating properly??
After considerable reading up on this I realized that there actually 2 different springs, one for the 8N is shorter and a tight curl at one end. The one for the 9N is longer and equal curls.
The 9N seems to be much stronger. Mine are all the 8N type.
The 8N spring when installed can be turned by hand, the 9N spring is tight and can not be turned by hand.
So, the question is, which spring is best to use??
Also, can the 8N springs be SHIMMED with a washer to make the spring stronger and produce a tight seat fit?
Thanks for any help on this.
I am re-doing the whole thing again. New everything and complete block wash. Down to the valves which were all new before but after close examination I noticed that the seats and valve face had become tarnished with no seat to valve mark.
That tells me that the valves were not seating properly??
After considerable reading up on this I realized that there actually 2 different springs, one for the 8N is shorter and a tight curl at one end. The one for the 9N is longer and equal curls.
The 9N seems to be much stronger. Mine are all the 8N type.
The 8N spring when installed can be turned by hand, the 9N spring is tight and can not be turned by hand.
So, the question is, which spring is best to use??
Also, can the 8N springs be SHIMMED with a washer to make the spring stronger and produce a tight seat fit?
Thanks for any help on this.