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Oversize valve guides

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ROZZER
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#1 PostAuthor: ROZZER » Wed Nov 15, 2006 9:07 am

More help needed. Currently replacing valve guides, inlets all came out fine and new ones fitted. It seems that the exhaust guides have been replaced in the past (by a previous owner) problem is they almost dropped out and it seems oil has been running down the outside (must have been a complete numpty that last changed them to have enlarged the holes in the process).
Can oversize guides(O/D) be obtained, if so from where?
My machine shop can machine some for me but that will be very expensive, I will do this if no alternative can be found.

Summats gotta go right soon!
AKA John Roscoe. PUM #028
1975 Z1B, 2013 Z800

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debben1
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#2 PostAuthor: debben1 » Wed Nov 15, 2006 11:49 am

Hello John, We can supply these in .004" oversize and then much bigger (.025") if the head really is in a mess, Quite common to have to fit the oversize guides as these heads are now 30 years old, you can only push guides in and out so many times before the hole gets bigger. ?6.65 each www.debben.co.uk

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ROZZER
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#3 PostAuthor: ROZZER » Wed Nov 15, 2006 1:19 pm

What a life saver Debben 1, I'm chuffed that it can be sorted at a reasonable cost (not as chuffed as 'er indoors' is, we can have a turkey for Xmas now).
My order will soon be winging itself your way- Muchos Gracias Amigo! :D
AKA John Roscoe. PUM #028

1975 Z1B, 2013 Z800

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debben1
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#4 PostAuthor: debben1 » Wed Nov 15, 2006 4:49 pm

I wouldnt want you to miss out on the Turkey :) Good to speak to you, Steve

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Garn 1
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#5 PostAuthor: Garn 1 » Wed Nov 15, 2006 8:23 pm

John-Roscoe, you can buy 0.002" oversize as well as the 0.004" oversize valve guides mentioned above. I noticed them on the Z1 Enterprises Site. You may get away with the smaller size. This could save you machining/reaming out for the larger ones.
RegardZ
Garn (Sydney) Z1, Z1A, Z1B and Z900-A4

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DogsbolloxofZ1B
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#6 PostAuthor: DogsbolloxofZ1B » Wed Nov 15, 2006 8:35 pm

Guys, speak with Len Patterson at the cylinderhead shop too.
http://www.cylinderheadshop.co.uk/K-line.html
Provided you have a good fit to start with he fits K-Liners and the heads I've had from him are fantastic. If your guides are loose then that's a different story and different solution as Debben1.

Mike. :p

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ROZZER
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#7 PostAuthor: ROZZER » Thu Nov 16, 2006 7:29 pm

Thanks for all the advice, I have just received 0.004'' oversize guides from Debben, will be fitting soon.
Until the next expensive installment of
'Christ, whens this thing gonna go right'

Adios
AKA John Roscoe. PUM #028

1975 Z1B, 2013 Z800


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