Print Page - 43 to 44 valves

Title: 43 to 44 valves
Post by: Norm on September 07, 2009, 06:52:57 AM

For those of you who cut your own valve seats, is there enough meat in the older 900 series with the 43mm intake to recut it to 44mm (or 45), or do you have to install a new seat?

Title: Re: 43 to 44 valves
Post by: ducpainter on September 07, 2009, 02:52:47 PM

Norm,

ducvet will know.

pm him.

Title: Re: 43 to 44 valves
Post by: brad black on September 08, 2009, 04:43:17 AM

we've done a few without issue.

Title: Re: 43 to 44 valves
Post by: Norm on September 08, 2009, 07:36:01 AM

Thanks. Brad: do you know if the stock seats are iron? I like to run Ti valves and would like to have copper or bronze seats.

Title: Re: 43 to 44 valves
Post by: Rock Store on September 08, 2009, 01:50:38 PM

Valve seats are Steel,till Ducati came in with Bronze Beryllium with the SBK and 2 valver,starting with the 749r series. Use Bronze Beryllium for the exhaust ,Its composition draws out the heat from the TI valve & is softer for longevity,use Bronze for the intake side as the temperatures are a bit coller & this still cushes the Ti valve. later..RS

Title: Re: 43 to 44 valves
Post by: Norm on September 09, 2009, 06:54:36 AM

It's nice to hear from you Rock Store, I wasn't sure you were around anymore.

Title: Re: 43 to 44 valves
Post by: Howie on September 09, 2009, 08:00:05 AM

I hope we hear from Rock Store more often [thumbsup]

Title: Re: 43 to 44 valves
Post by: 2001cromo on September 09, 2009, 10:59:26 AM

Quote from: howie on September 09, 2009, 08:00:05 AM
I hope we hear from Rock Store more often [thumbsup]

Serious +1

Title: Re: 43 to 44 valves
Post by: Rock Store on September 09, 2009, 10:52:31 PM

Thanks for the invite..later...RS

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Moto Board => Tech => Topic started by: Norm on September 07, 2009, 06:52:57 AM