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Valve grinding
Posted: Tue Mar 06, 2012 4:04 pm
Author: zman
Im going to replace all my valves.When you are grinding them in with past how can you be sure you have them seated right
Posted: Tue Mar 06, 2012 4:58 pm
Author: zed1015
when lapping in a valve look for an even, continuous unbroken satin grey band approx 1.5mm wide on the valve seat.
It's not too good an idea though to lap new valves to worn seats.
When fitting a new valve you should re-cut the seat also .
They should need little (with fine paste) or no lapping in at all.
valves
Posted: Tue Mar 06, 2012 5:48 pm
Author: zman
zed1015
Thanks for all your replies to my valve posts.
David[zman]
Posted: Tue Mar 06, 2012 6:19 pm
Author: ADRIAN H
I would not try to do this yourself. I would take them to someone who knows what they are doing. DEBBEN performance in ringwood have just done my head.
Posted: Tue Mar 06, 2012 6:42 pm
Author: shaggy
[quote="ADRIAN H"]I would not try to do this yourself. I would take them to someone who knows what they are doing. DEBBEN performance in ringwood have just done my head.[/quote]
What did they do and how much did it cost
Ta Paul
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Posted: Tue Mar 06, 2012 6:46 pm
Author: zman
Yep.given it a bit of thought and im getting them done by local engine builder
Posted: Tue Mar 06, 2012 6:49 pm
Author: ADRIAN H
shaggy wrote:ADRIAN H wrote:I would not try to do this yourself. I would take them to someone who knows what they are doing. DEBBEN performance in ringwood have just done my head.
What did they do and how much did it cost
Ta Paul
My Z1000A2 has just had a full engine rebuild, including casings being sent away for polishing at Steve Smethursts, head work - new valves, valve guides, valve seals, setting up adjustable cam sprockets. I can not give you a breakdown for the head work.
Give Ray or Steve Debben a bell, and ask for a quote, helpful guys.
I believe one of the bristol lads has had head work done there recently as well.
Posted: Fri Mar 23, 2012 10:23 pm
Author: hanskloss
I just had valve guides replaced and seats recut, kept old valves - all good, done the lapping myself with fine compound only, took about a minute each, went back to the shop to do a vacuum leak test - got top scores even without oiling the valve stems (to extra seal them), that's in Poland but I guess any workshop in UK would do the service
Posted: Sat Mar 24, 2012 12:51 pm
Author: Taffus
Posted: Sat Mar 24, 2012 1:46 pm
Author: chrisu
i agree - buzzard does do good work.
Posted: Sat Mar 24, 2012 2:26 pm
Author: Keefleaf
Thanks Taffus.
....Buzzard,fully paid up member of the "Cardy Club"
Posted: Sat Mar 24, 2012 3:01 pm
Author: peterf
Old bastard- can he see what he's doing?
