I am working on a Honda J30 V6 (3.0L from a 06-07 Accord) that jumped time. The cylinder heads have been removed and are currently at the machine shop. The shop spun all of the valves on their machine and advised that I need to provide 5 new exhaust valves and 4 new intake valves. I ordered the parts from the Honda dealer and will be supplying them with the requested valves plus cam and valve stem seals tomorrow. They will also be resurfacing both heads since the said the surface finish has some "shadowing" and is in "fair condition."
The shop also mentioned that they will be doing a "valve job." I recognized that a "valve job" can mean different things. The shop clarified that the valve seats are fine but they will be machining the reusable valves (the remaining 15).
I thought lapping the valves was a common practice but perhaps that is reserved for the DIY crowd? Is there an advantage to machining the valves on a machine versus lapping by hand? He mentioned something about cutting seats but I'll clarify tomorrow.
Also, the cost for the machine shop labor to do all of this work is $540. Not sure what the cost is in other parts of the country, but around here, it isn't exactly peanuts.
The shop also mentioned that they will be doing a "valve job." I recognized that a "valve job" can mean different things. The shop clarified that the valve seats are fine but they will be machining the reusable valves (the remaining 15).
I thought lapping the valves was a common practice but perhaps that is reserved for the DIY crowd? Is there an advantage to machining the valves on a machine versus lapping by hand? He mentioned something about cutting seats but I'll clarify tomorrow.
Also, the cost for the machine shop labor to do all of this work is $540. Not sure what the cost is in other parts of the country, but around here, it isn't exactly peanuts.