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Post by slyfox762 on Feb 21, 2023 10:16:48 GMT 1
Contacted Delkevic support today....but I think we know what is going on here:
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Post by lcmarky on Feb 21, 2023 11:12:27 GMT 1
I need to machine up a few spring retainer pieces to weld to my Nikkon pipes - was thinking a similar design to what I see in the pic..
Shame you're having grief with the pipes..
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Post by headcoats on Feb 21, 2023 11:21:23 GMT 1
Have you tried just bolting the flange on first with the LC original copper gaskets, then centering it and pulling the 2 nuts tight then offering up the exhaust?
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Post by slyfox762 on Feb 21, 2023 11:33:39 GMT 1
Have you tried just bolting the flange on first with the LC original copper gaskets, then centering it and pulling the 2 nuts tight then offering up the exhaust? Yes....it might work but it looks a bit dodgy really...did you see the previous picture of it bolted down wit the gasket squeezing out? Maybe I've got the wrong ones? Waiting for a response for Delkevic, surely they can do better than this? This was the sort of thing I was expecting, (Tyga pictured), a collar that locates that gasket AND the to manifold...not floating about:
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Post by lcmarky on Feb 21, 2023 19:50:02 GMT 1
Have you tried just bolting the flange on first with the LC original copper gaskets, then centering it and pulling the 2 nuts tight then offering up the exhaust? Yes....it might work but it looks a bit dodgy really...did you see the previous picture of it bolted down wit the gasket squeezing out? Maybe I've got the wrong ones? Waiting for a response for Delkevic, surely they can do better than this? This was the sort of thing I was expecting, (Tyga pictured), a collar that locates that gasket AND the to manifold...not floating about: Just look at that welding - lush!
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Post by lcmarky on Feb 21, 2023 20:12:04 GMT 1
& a neat design on the spring hooks..
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Post by slyfox762 on Feb 21, 2023 20:30:21 GMT 1
& a neat design on the spring hooks.. Most of the Tyga stuff is nice...got their pipes on my MC21 and Wolf. Tyga list these for the 350LC.....I wonder if they will fit a YPVS.
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Post by lcmarky on Feb 22, 2023 9:56:16 GMT 1
Have you checked with Norbo & Dave (AKA Mutts Nutts) as they both provide full expansion pipe sets?
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Post by slyfox762 on Feb 27, 2023 16:16:37 GMT 1
I'm struggling to get to a happy place with these Delkevic flanges. They said to use the crush gaskets supplied and hold them in place with my fingers until seated......they just deformed and squeezed out. Once the flanges are fitted the exhausts will not slide in to the double skin of the flange as clearance is too tight! Delkevic Customer Services said they were surprised I was having problems as no one else had raised these issues. Have you checked with Norbo & Dave (AKA Mutts Nutts) as they both provide full expansion pipe sets? No...I've spent my £500....these should fit!!!!.....maybe they are too cheap? Anyway, in other news, the front brake caliper upgrade has gone well, thanks to advice here. Haven't tested it yet but very happy with the fit. Haven't finished the pipe clamps yet as I've got to take the forks out to investigate the lack sag: Must admit, the front master reservoir is at a bit of a dumb angle!:
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Post by lcmarky on Feb 27, 2023 17:45:22 GMT 1
A crush washer or gasket has it's working limits and that looks a bit beyond what is feasible to me.
Calipers look good - nice work.
I think if you work everything on the exhaust flanges to the datum of the gasket face on the barrel being your flat surface you'll be OK - or at least that's what I'd do.
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Post by donkeychomp on Feb 27, 2023 23:07:59 GMT 1
Isn't it odd how companies always say that. 'No one has had this problem before'. Yeah right. If they don't fit then they're not fit for purpose. I'd send them back and pay a little more for Mutts pipes.
Alex
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Post by slyfox762 on Feb 28, 2023 8:09:59 GMT 1
Isn't it odd how companies always say that. 'No one has had this problem before'. Yeah right. If they don't fit then they're not fit for purpose. I'd send them back and pay a little more for Mutts pipes. Alex Here is the quote from their email to me last week about fitting the exhaust: "We are a little surprised that you are are having trouble fitting the pipes, as you are the only client to have had similar, or indeed any issues."
I must admit, it's one of the few things in life that 'flips my switch'.....when somebody basically says: 'what's your problem mate? no one else has complained'. It's one of the Customer Service Cardinal Sins....guaranteed to piss someone off. Almost at surrender point now and will contact the aforementioned Mutts Nutts for options.
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Post by slyfox762 on Feb 28, 2023 8:26:48 GMT 1
I think if you work everything on the exhaust flanges to the datum of the gasket face on the barrel being your flat surface you'll be OK - or at least that's what I'd do. it's not just the gasket...it's the difficulty getting the down tube into the double sleeved flange design, I'd have to clobber it in with a mallet as it is ridiculously tight. ...and also there is an issue with the wasted part of the OEM exhaust studs....the flange design mean that the M8 nuts run out of thread before that can tighten on the studs. This is getting boring now and I'm starting to sound like a whinging git....I think it's time to give up and move on.
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Post by slyfox762 on Feb 28, 2023 8:30:14 GMT 1
...ah, I see Norbo and Mutts Nutts are not the same thing.
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Post by lcmarky on Feb 28, 2023 10:16:45 GMT 1
Like all these things it's just an engineering problem & most likely brought about by shite/low cost priority design. Either take it on yourself or throw the whole lot back to the supplier, get a refund and another set of pipes.
Once you fiddle/adjust anything you're on your own from their perspective & to a forum where most LC nuts frequent this is perhaps a lesson learnt!
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Post by crogthomas on Feb 28, 2023 10:43:24 GMT 1
Must admit, the front master reservoir is at a bit of a dumb angle!: The usual trick here is to put the bars full lock to the left. The MC ends up about level then. Unless you have the front wheel clamped in a stand though..........
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Post by slyfox762 on Feb 28, 2023 12:10:51 GMT 1
The usual trick here is to put the bars full lock to the left. The MC ends up about level then. Unless you have the front wheel clamped in a stand though.......... Yep, that's how it went....once I unbolted the wheel clamp from the bench On some of my other bikes the one piece unit has the reservoir horizontal and the piston at the angle of the handle bar......which is jolly sensible! I was going to look for such a replacement but then I thought life is too short and I'll just get on with the Yamaha cylinder ...although the thought of the brake fluid over the level and leaking out of the breather could keep me awake at night...just me overthinking again!
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crigar
Weekend rider
Posts: 88
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Post by crigar on Feb 28, 2023 12:46:51 GMT 1
Surtout ne pas trop serrer les deux petites vis, au risque de ne pas pouvoir les enlever ensuite. Le joint en caoutchouc est très étanche.
Do not overtighten the two small screws, otherwise you will not be able to remove them. The rubber seal is very tight.
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Post by mouse on Feb 28, 2023 12:55:46 GMT 1
It may be worth mentioning to Delkevic the difficulties you are having in getting their exhausts to fit properly, plus their somewhat unhelpful response are being shared on a forum. A forum that has a lot of potential exhaust purchasers!
Just a thought!
Mouse
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Post by slyfox762 on Feb 28, 2023 15:31:17 GMT 1
Surtout ne pas trop serrer les deux petites vis, au risque de ne pas pouvoir les enlever ensuite. Le joint en caoutchouc est très étanche. Do not overtighten the two small screws, otherwise you will not be able to remove them. The rubber seal is very tight. Indeed, not too tight and a copious amount of Copper Slip.....don't want to be drilling those little buggers out next year! (M4 reservoir cap screws)
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Post by slyfox762 on Feb 28, 2023 15:39:18 GMT 1
It may be worth mentioning to Delkevic the difficulties you are having in getting their exhausts to fit properly, plus their somewhat unhelpful response are being shared on a forum. A forum that has a lot of potential exhaust purchasers! Just a thought! Mouse I've had enough Mouse and started the return process. I've given Delkevic enough opportunity to work with me to get these pipes fitted correctly and safely, maybe even collaborate to improve the flange design for the future. I'm not in the mood to modify and remake the flange, especially when there are others on the market. Started looking at the Norbo and Mutts offerings...pretty good!
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Post by Yogi on Feb 28, 2023 16:09:44 GMT 1
I used standard crush gaskets on mine Once I’d done a heat cycle I tightened them up and they seem well sealed to me now Admittedly I was a bit concerned about the gaskets supplied hence I didn’t use them As you say the spigots are a tight fit but that will hopefully stop all the oil problems The pipes feel nice and secure unlike some that wobble about And they sound the nuts Matt 🐻
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Post by slyfox762 on Feb 28, 2023 17:11:27 GMT 1
Matt, thank you for the photos. Are your exhaust stud wasted in the middle or M8 all the way down? Another issue was I ran out of thread with my OEM wasted studs. ...and another issue is the gasket seating face of the flange is not flat...it's curved and and rippled with weld. Anyway...they are in the post now....good job they came in a nice box!
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Post by Yogi on Feb 28, 2023 17:46:32 GMT 1
No my studs are not the wasted type,I’ve had that issue before though,ended up fitting split washers first
Shame they had to go back cos they look and sound the dogs danglies 😂
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Post by headcoats on Feb 28, 2023 19:04:31 GMT 1
Maybe get some spacers so the nuts don't end up in the area with no thread and put the flange on your belt sander and get it sitting flat to take the exhaust gasket ?
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Post by steve63 on Feb 28, 2023 19:56:30 GMT 1
I remember having the same issue with the wasted studs when I fitted some allspeeds back in the 80's. I made four spacers out of some aluminium round bar. Some people just put an M10 nut on before the M8 nut. Here is one of the mounting flanges I made for my pipes. Just fitted with countersinks at the moment to make sure the manifold is perfectly centralised. The flange is 5mm at the moment but I might go up to 6 or even 8 when I have some depending how it seals
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Post by jon on Feb 28, 2023 21:14:06 GMT 1
Contacted Delkevic support today....but I think we know what is going on here: I can see exactly why this has happened, and it’s through bad design. Most aftermarket expansions have a flange that when tightens up bottoms out on the cylinder flange. This keeps it square at the last moment of tightening. Those do not, and can be tightened at an angle and thus crushing the washer. Ideally the stubs need fitting to the cylinders, then the exhausts fitted. Your pictures show the pipes not at the right angle once the rear hanger is bolted up ( probably because you had to fit the flanges first. If out of line and the rear hanger is fitted first you’ll get this problem. I had to make stubs for my Microns as I thought they weren’t good enough. rdlccrazy.proboards.com/post/433710Jon
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Post by lcmarky on Mar 1, 2023 9:31:46 GMT 1
I remember having the same issue with the wasted studs when I fitted some allspeeds back in the 80's. I made four spacers out of some aluminium round bar. Some people just put an M10 nut on before the M8 nut. Here is one of the mounting flanges I made for my pipes. Just fitted with countersinks at the moment to make sure the manifold is perfectly centralised. The flange is 5mm at the moment but I might go up to 6 or even 8 when I have some depending how it seals Nice piece of well executed engineering!
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Post by steve63 on Mar 1, 2023 13:53:28 GMT 1
I remember having the same issue with the wasted studs when I fitted some allspeeds back in the 80's. I made four spacers out of some aluminium round bar. Some people just put an M10 nut on before the M8 nut. Here is one of the mounting flanges I made for my pipes. Just fitted with countersinks at the moment to make sure the manifold is perfectly centralised. The flange is 5mm at the moment but I might go up to 6 or even 8 when I have some depending how it seals Nice piece of well executed engineering! Thanks. I don't like the wire spring hook things much. They were very fiddly to weld on and look, a bit of an afterthought. When I do some more I'm looking at adding the spring hooks to the 5mm flanges. I have some Sugaya pipes for my RGV and they have holes in the flange for the springs to hook onto but the holes have nearly worn right through just through vibration I would think.
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Post by steve63 on Mar 1, 2023 14:04:30 GMT 1
Basically you can mess around all day when it's something for yourself but when it's got to go into production it's speed and ease of manufacture that counts.
They've just made four components, cut a short bit of off the shelf pipe and put it together with eight little welds. Simplest/cheapest solution but unfortunately not a 100% satisfactory one. The way they did it is not a way I would of even thought of to be honest.
I think Allspeeds (and maybe Microns) just went inside the spigot and butted up to the gasket?
To arrive at my spigot the length and exact diameter I wanted it I cut a piece of stainless the right length and width, formed it and welded it, twice. A commercial company just won't mess about like that, or would but the cost would increase massively.
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