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Z2 750 Bore service limits
Posted: Wed Apr 14, 2021 3:44 pm
Author: GuyP
Anyone know what the cylinder bore service limits are on a Z2 750, bore is 64mm just checking on wear limits whilst tidying up a few things. I see the Z1 900 is standard 66mm with a wear limit of 66.10mm. Thanks.
Re: Z2 750 Bore service limits
Posted: Sat Apr 17, 2021 7:23 pm
Author: DogsbolloxofZ1B
I’ve restored a few Z2’s. Yes 0.004” would be the point of a rebore.
If you use IMD pistons/rings these are made from superior materials and the bore would be skirt OD (measured at right angle to small ends) + 0.0015-0.002”.
Re: Z2 750 Bore service limits
Posted: Wed Apr 21, 2021 7:39 am
Author: GuyP
DogsbolloxofZ1B wrote:I’ve restored a few Z2’s. Yes 0.004” would be the point of a rebore.
If you use IMD pistons/rings these are made from superior materials and the bore would be skirt OD (measured at right angle to small ends) + 0.0015-0.002”.
DogsbolloxofZ1B wrote:I’ve restored a few Z2’s. Yes 0.004” would be the point of a rebore.
If you use IMD pistons/rings these are made from superior materials and the bore would be skirt OD (measured at right angle to small ends) + 0.0015-0.002”.
Thanks for the info, very much appreciated. Apologies for the delayed reply from me.