I need some advice please.
I have diagnosed my fail to run fail and fail to idle issue. The upper cylinder intake valve spring is broken in several pieces. The upper intake valve seal is also destroyed. I pulled the valve and it did not come through the guide smoothly. It took some twisting and pulling by hand to get it out. The valve has a clear wear point above the seal and below the keeper which has a slight shoulder. I think it will need to be replaced along with the valve spring.
Questions:
Do mercury replacement valves come drop in ready? I have never worked on valves and have no idea how to grind or lap?
Do I need to replace the valve guide?
Should I replace all of the other three valve springs while I am in here? Is this a common failure point?
The two rocker shafts have some minor staining / corrosion where they are exposed. Should I try to clean them up or ignore it?
There is some wear at the top of the valve guide under the valve seal. I think it will be ok. It would require replacing the entire head to repair.
Any other advice while I am in here?
I have done re and re on automotive heads but I might be in over my head here.
Thanks in advance for your help! Please!
Jeff
I have diagnosed my fail to run fail and fail to idle issue. The upper cylinder intake valve spring is broken in several pieces. The upper intake valve seal is also destroyed. I pulled the valve and it did not come through the guide smoothly. It took some twisting and pulling by hand to get it out. The valve has a clear wear point above the seal and below the keeper which has a slight shoulder. I think it will need to be replaced along with the valve spring.
Questions:
Do mercury replacement valves come drop in ready? I have never worked on valves and have no idea how to grind or lap?
Do I need to replace the valve guide?
Should I replace all of the other three valve springs while I am in here? Is this a common failure point?
The two rocker shafts have some minor staining / corrosion where they are exposed. Should I try to clean them up or ignore it?
There is some wear at the top of the valve guide under the valve seal. I think it will be ok. It would require replacing the entire head to repair.
Any other advice while I am in here?
I have done re and re on automotive heads but I might be in over my head here.
Thanks in advance for your help! Please!
Jeff