Topic: Keeping valves with their respective seat/cylinder position?

[Scott S]

 Let's say youu are pulling all of the valves to clean up the head, combustion chambers, intake and exhaust ports, etc.
 Valves will be lapped and valve stem seals installed.
 
 Do you keep the valves with the same guide/seat they came from? Number one intake valve goes back in number one, etc?

 I always have, but if everything is getting cleaned and valves will be lapped in, does it really matter?
 Just curious.

[thep1pe]

Yes keep them matched up always.

[bryanj]

Idealy yes but if you drop them all on the floor dont sweat it

[grcamna2]

Yes keep them matched up always.

+1

[Mark1976]

   This is just my input, if the guide is in good condition, the valve is within tolerances (the stem is not worn, there's good margin, the face is good), the seat is clean and concentric and it laps in, it'll work. It normally never works that way, the exhausts usually suffer from too much recession and the seat will require a touch up to put back in spec on the valve face. I did just this on my FZ earlier this year, re cut all 20 seats reused the best 20 out of 40 valves, installed new seals and away it went. Starts at the tap of the starter every single time.

[grcamna2]

I don't know how many miles are on this engine Scott,but if you have low miles on it then I recommend a fine grit(220)lapping compound and light application of it to leave the seat and valve very smooth.
The usual 'over the counter' generic grit valve-lapping compound is very coarse grit and will leave the seats/valves too rough,imo.

A local engine rebuilding machinist may have some fine grit valve grinding/lapping compound for you?

[Mark1976]

The usual 'over the counter' generic grit lapping compound is very coarse grit and will leave the seats/valves too rough,imo

 +1 to the above...