Slight Oil Leak.

[Davie_G71]

Hello all, followinf on from something said in this thread about copper washers: https://www.bikechatforums.com/viewtopic.php?t=176755

I have a very slight oil leak and i think it's coming from the banjo boolt as highlighted in this diagram:

https://www.davidaitchison.co.uk/sump.jpg

I thought the washers that were on there previous to me taking it apart were the wrong type, they weren't copper but looked more like steel, so i replaced them with copper ones. But the leak remains.

Should i be heating up washers to the point of glowing and letting them cool before fitting? I thought that copper being a soft metal as standard would crush naturally.

Thoughts?
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Suzuki GSXR600 SRAD, 1997 & Kawasaki Z1000, 2003.

[iooi]

Is it tightned to the correct figure ?

Are all the joints clean and smooth ?

A new copper washer, should not need anything doing to it to seal the joint.
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Just because my bike was A DIVVY, does not mean i am......

[Kickstart]

Hi

I agree with the above. Heating copper washers up is a trick used when reusing them and shouldn't be necessary with new ones.

Suspect the old one was an alloy washer.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Davie_G71]

Yeah, everything is clean and it's as tight as i can possibly get it, granted it isn't torqued up, maybe that's the next step, but it's pretty tight.

It's due an oil change soon so i'll get into it then.
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Suzuki GSXR600 SRAD, 1997 & Kawasaki Z1000, 2003.

[Noxious89123]

Might be overtightened, 25nm isn't alot.

I tightened a bolt to abou 55nm just with a spanner, so if your doing it as tight as you can, it's probably overtightened.

Torque wrench ftw!
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[Davie_G71]

Hmm - Fair point. I'll get a hold of a torque wrench.
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Suzuki GSXR600 SRAD, 1997 & Kawasaki Z1000, 2003.