Z1OwnersClub GB

Hi all
Just need some advice on whether my zed needs a rebore. It has done 69k miles and is burning oil, but have been advised to have a rebore rather than fit new piston rings. I really dont want to have to do anything again once rebuilt. I am doing the valve seals too. If rebore needed then is a specific size needed etc ? Any info would be very much appreciated.

Many thanks
Chris

Hi Chris,would be surprised with those miles if you could get away with just rings,would say at least one set up on pistons and rings plus rebore and hone,get your valve guides checked for wear and only use genuine Kwak or Viton valve seals,all the others seem to fail very quickly,as and aside dont be tempted to use some of the nasty pattern gasket sets out there as a minimum use gen Kwak head and base gaskets and the rubber slug shaped between head and barrels the slug in particular in copy sets is half the depth of the gen ones and always fails,got T shirt etc..Cheers Paul J

i'm just doing someones engine at similar mileage and symptoms.

needs all top end doing - its just worn out.

rebore, guides, camchain and rollers/blade

chrisu wrote:i'm just doing someones engine at similar mileage and symptoms.

needs all top end doing - its just worn out.

rebore, guides, camchain and rollers/blade

Wot Chris says

Makes sense whilst you're in the engine.

Cheers guys.
Mmmmme, all that might be beyond me !

Talk to Chris at Grumpy1260's they would be able to sort it for you.
Grumpy 1260
Unit 2
Bexwell Areodrome
Bexwell
Downham Market
Norfolk
PE38 9LU
Telephone:

01366 388 352
07774 924067
07964 895086

My A1 has upwards of 80k on it, did rings/hone cpl years back, all good!