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Re: brass exhaust nuts
Posted: Sat Jan 03, 2015 8:44 pm
by tavspeed
nordlock washers,bent chain tensioner tab,lock wired,oh and a dab of loctite to be on the safe side,
Re: brass exhaust nuts
Posted: Sat Jan 03, 2015 8:54 pm
by gaz_powell
manifold on, decent flat type spring washer (not the round type) then nut with round end up against the washer.
I use ali barrels so I want studs in the barrel and not bolts.
Gaz
Re: brass exhaust nuts
Posted: Sat Jan 03, 2015 9:10 pm
by dave411
bristolmod wrote:oh this ones gonna run and run.................
And what oil would you all suggest?
Re: brass exhaust nuts
Posted: Sat Jan 03, 2015 9:34 pm
by TS1-200
Daggs wrote:They're supposed to go on with hex. side to the manifold flange with a spring washer underneath. This way gives the greatest surface area contact.
They are made of brass because the combination of extreme heat and exposure to the elements, would make steel versions lock solid on the studs in no time. The nuts are deliberately weaker than the studs to make difficult removal unlikely to damage the studs.
The nuts should be considered as consumables.
Actually its exactly the opposite should go on round side to manifold with a spring washer and a plain washer
Re: brass exhaust nuts
Posted: Sun Jan 04, 2015 10:03 am
by slangen
gaz_powell wrote:
I use ali barrels so I want studs in the barrel and not bolts.
Gaz
That's a good point you will most definitely get a more even distribution of torque load with studs and nuts. However if a stud worked loose in the middle of nowhere it would be hard to fix on the side of the road. By now this is getting silly let's discuss oils...
Re: brass exhaust nuts
Posted: Sun Jan 04, 2015 4:55 pm
by paulnobodyimportant
I've always been confused over this issue, but since getting Sticky's second edition, (page 112). I've always followed the example below from Mark Broadhurst. Some might disagree, but if its Ok for MB, then I'll go along with their experience.
Re: brass exhaust nuts
Posted: Sun Jan 04, 2015 5:49 pm
by gaz_powell
I put some medium strength loctite on the studs on assembly to stop them coming out.
never had a problem with studs coming out or nuts coming loose.
if holes on manifold have had to be elongated then a flat washer is used - just depends
Re: brass exhaust nuts
Posted: Sun Jan 04, 2015 10:42 pm
by Timbo
paulnobodyimportant wrote:I've always been confused over this issue, but since getting Sticky's second edition, (page 112). I've always followed the example below from Mark Broadhurst. Some might disagree, but if its Ok for MB, then I'll go along with their experience.
....that's how I've always done them...
Re: brass exhaust nuts
Posted: Sun Jan 04, 2015 11:47 pm
by davla
The whole point of a spring washer is that it gets stuck into the surface that you're screwing the nut up against and the nut, and helps prevent the nut coming undone. The extra flat washer completely negates the effect of the spring washer. It may create some tension but it's not doing what it's designed to do.
Re: brass exhaust nuts
Posted: Mon Jan 05, 2015 12:20 am
by PeteB
[quote="davla"]The whole point of a spring washer is that it gets stuck into the surface that you're screwing the nut up against and the nut, and helps prevent the nut coming undone. The extra flat washer completely negates the effect of the spring washer. It may create some tension but it's not doing what it's desig
