Fazer Owners Club - Unofficial

Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: Agentorange on 27 March 2017, 11:09:01 pm

Title: Lower crank case bolts when tight crank won't turn
Post by: Agentorange on 27 March 2017, 11:09:01 pm

Hello there


So I've finally got my new gearbox in the motoriginal and I've been putting it all back together but when I tightenter the bolts in around the crank in the lower half the crank work turn


I'm now worreduced I might have killed the shells


Anyone know what's going on?

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Disorderlypunk on 28 March 2017, 12:18:13 am

did you ...
1:- prime the shells with oil?
2:- use a torque wrench


--pretty sure you will have but got to ask these things

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: tommyardin on 28 March 2017, 01:03:56 am

Don't know about modern B/E shells but years ago they had location lugs in them that located in corresponding grooves in the con rods end halves, is it possible to put them in the wrong way round? I don't know? 

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Agentorange on 28 March 2017, 01:35:42 am

Did lube the shells but didn't use torque wrench, that being said I've not do everything the up that tight I'm confused

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Agentorange on 28 March 2017, 01:36:46 am

All shells are in correctly and do have grooves so wouldn't be able to put themy in incorrectly

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Disorderlypunk on 28 March 2017, 03:01:37 am

i have not done a full rebuild on the fzs but on some engines i have torqued to the manual specs and in my head they have been too loose
but the manual says what the manual says and its never gone wrong big time styly

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Bretty on 28 March 2017, 09:04:53 am

Have you changed any of the bits over? or is it all going back with the same set of bits that came apart?

Have you been a bit liberal with the gasket sealant and glued everything together?

Why wouldn't you use a torque wrench?

Title: Re: Lower crank case bolts when tight crank won't turn
Post by: Fazerider on 28 March 2017, 09:56:32 am

Are all the bearings in their original positions, or have they got muddled up?
Like the camshaft bearing, they are machined in situ to ensure alignment. Get them swapped around and some will be too loose and some too tight.
Nipping bolts up by hand is fine in non-critical areas, but it’s important to get it right for the crankcase and major engine bolts.
Use a torque wrench.