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New Triplex Chains #757536
11/29/18 7:20 pm
11/29/18 7:20 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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Ianbuck  Offline OP

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London, UK
Just putting together my A65 primary side, with new clutch and chain. While trial fitting prior to sprocket alignment I note that the new Renolds chain has loads of lateral play compared to the old Renolds chain I took off.

You can see in the photo the original old chain has virtually no lateral play, however the new chain (shown fitted on the bike) you can see significant gaps and play in the chain.

Is this normal with these new chains?

I was going to check the sprocket alignment ( with the chain off) but with the new, looser chain I expect alignment is less critical ?

Any comments ?

Ian

Attached Files 20181129_184941_resized.jpg20181129_185053_resized.jpg
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Re: New Triplex Chains [Re: Ianbuck] #757538
11/29/18 7:32 pm
11/29/18 7:32 pm
Joined: Dec 2004
Posts: 9,667
Scotland
kommando Offline
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Scotland
I only buy chain from Andy the chainman, Andy has retired but the new guy uses his name, ask for the Merc duplex timing chain version.

Last edited by kommando; 11/30/18 4:38 pm. Reason: Changed triplex to duplex
Re: New Triplex Chains [Re: Ianbuck] #757539
11/29/18 7:35 pm
11/29/18 7:35 pm
Joined: Aug 2001
Posts: 4,251
argyll. scotland, uk
gavin eisler Online content
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argyll. scotland, uk
looks to me like they both have similar end play, just in different areas, plate to plate ,new, inner plate to roller, old.
not sure if this is normal or not, at Stafford I had a chat with Andy the chain man, he has a duplex option which he reckons is better, convinced me, though I havent tried it yet.

End play is not an excuse for miss alignment, trial fit the primary bits with no chain, clamp a straight edge to the front sprocket edge, see how far out the rear sprocket is, or do it the other way round, check the gap with feeler gauges, make a shim to go behind the front sprocket to compensate, or buy one of the part number options, a tolerance of + or - 5 thou is good enough it doesnt have to be dead on, why create wear and throw away HP.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
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The poster formerly known as Pod
Re: New Triplex Chains [Re: Ianbuck] #757542
11/29/18 7:54 pm
11/29/18 7:54 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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London, UK
I'll check the sprocket alignment and take a photo of both chains on the table. It's the amount of side play that surprised me. I don't particulary want to by another new chain.

I also found a crack in the stator wiring outer casing. I was going to just put a bit of silicon on it one the final fitting.

Ian

Attached Files 20181129_184056_resized(2).jpg
Re: New Triplex Chains [Re: Ianbuck] #757545
11/29/18 8:32 pm
11/29/18 8:32 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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London, UK
There you go, the chains are both fully flexed. The one nearer the ruler is the old one. That's nearly 1/2" of lateral flex on the old chain and about 1" on the new chain.

Ian

Attached Files 20181129_202601_resized.jpg
Re: New Triplex Chains [Re: Ianbuck] #757549
11/29/18 9:08 pm
11/29/18 9:08 pm
Joined: Dec 2004
Posts: 9,667
Scotland
kommando Offline
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Scotland
Worn out but brand new, sorry but you better buy a new good quality chain.

Re: New Triplex Chains [Re: Ianbuck] #757555
11/29/18 9:32 pm
11/29/18 9:32 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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London, UK
I thought Renolds chains were be surpossed to be good chains? I think I'll give Renolds a call tomorrow, see what they have to say.

I've just checked the sprocket alignment and its spot on, without any shims. Pity about the chain I could have had that job finished tonight. Bugger !!,

Ian

Re: New Triplex Chains [Re: Ianbuck] #757557
11/29/18 9:43 pm
11/29/18 9:43 pm
Joined: Dec 2004
Posts: 9,667
Scotland
kommando Offline
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Scotland
Regardless of what they say that chain is junk.

Re: New Triplex Chains [Re: Ianbuck] #757561
11/29/18 10:59 pm
11/29/18 10:59 pm
Joined: Aug 2001
Posts: 4,251
argyll. scotland, uk
gavin eisler Online content
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argyll. scotland, uk
That isnt good, possibly a low grade industrial . Last triplex I bought came from SRM, its been on for a good while, 20K maybe, still got some left in it. Try Andy the chain man, maybe?

Last edited by gavin eisler; 11/29/18 11:02 pm.

71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: New Triplex Chains [Re: Ianbuck] #757562
11/29/18 11:01 pm
11/29/18 11:01 pm
Joined: Jan 2004
Posts: 3,902
ca, us
D
DMadigan Offline
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ca, us
The last time that I tried to buy triplex chain from a Renolds chain distributor they asked what it was for. When I said motorcycle they said they do not sell chains for motorcycles. Maybe different in the UK.

Re: New Triplex Chains [Re: Ianbuck] #757566
11/30/18 12:15 am
11/30/18 12:15 am
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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This chain came from SRM with the new clutch I bought from them. It's in a Renolds branded box.

Re: New Triplex Chains [Re: Ianbuck] #757569
11/30/18 12:37 am
11/30/18 12:37 am
Joined: Aug 2001
Posts: 4,251
argyll. scotland, uk
gavin eisler Online content
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Get a refund, sent it back with the pic of the old one.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: New Triplex Chains [Re: Ianbuck] #757607
11/30/18 12:43 pm
11/30/18 12:43 pm
Joined: May 2013
Posts: 5,135
Rotherham - S. Yorkshire
Allan Gill Offline

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I'd refit that old one, and im not one to skimp on a build. However the best way to check strech is pushing the links togehter and then stretching it in a line.... My IWIS megalife chain will have a lot of Bow in it, but this is down to its design, the rollers in that are barrel shaped to take different loads, if you do the push pull technique then youll find virtually no wear.


RE- Reynolds Chain, yes back in the 60's it was the thing to have.... I bought one in 2006 ish and it was a pile of junk also, some lesser quality chain branded up and paying a royalty to use reynolds name I think. That chain I had was constantly being adjusted for the 3500 miles I had it on for, although if you have a new slipper then it will spend most its time cutting its tracks until the roller runs on the slipper and not the end plates..... As a note, unless your slipped is completely goosed, then dont change that either.


beerchug
Re: New Triplex Chains [Re: Ianbuck] #757620
11/30/18 1:44 pm
11/30/18 1:44 pm
Joined: Dec 2013
Posts: 4,577
ohio, usa
kevin roberts Offline

DOPE
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ohio, usa
ive been using renold chain on my race bike-- half the time its at WFO.

chains last two days, then develop tight links. im switching to DID.


"Are bikes so nice as all that?" asked the mole, shyly...

"Nice? They're the only thing," said the Water Rat Solemnly, as he leaned forward on the handlebars. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about with bikes."
Re: New Triplex Chains [Re: Ianbuck] #757631
11/30/18 3:21 pm
11/30/18 3:21 pm
Joined: Aug 2015
Posts: 1,301
Bolton Lancs UK
A
Andy Higham Offline
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Bolton Lancs UK
Back in the day racing tridents used to break clutch shafts due to the load imposed by the triplex chain when the shafts flexed. the cure was to use two single row chains on the outer rows of teeth, this allowed some flex


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Re: New Triplex Chains [Re: Ianbuck] #757633
11/30/18 3:40 pm
11/30/18 3:40 pm
Joined: Aug 2001
Posts: 7,671
scotland
triton thrasher Online content
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Renolds chains have been useless for motorbikes for many years now.

Sorry.


Amateur Loctite enthusiast.
Re: New Triplex Chains [Re: Ianbuck] #757643
11/30/18 4:43 pm
11/30/18 4:43 pm
Joined: Dec 2004
Posts: 9,667
Scotland
kommando Offline
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I changed my first post, the Merc timing chain is duplex not triplex, you fit it to the 2 inner rows of teeth, Andy first used it on Laverda's as their Triplex chain for the 1000 triples was unobtainable and Iwis provided the duplex Merc timing chain, if it copes with Laverda power then any Brit bike is covered. I use it on my 850 Commando and no issues to date, I also use the simplex on the Norton timing chain. The pins and bushes are maxed out sizewise within the confines of the sprocket dimensions so it has the largest bearing surface possible and uses the best materials for long life, the simplex one on the timing chain does not need retensioning after 500 miles unlike the OEM one.

Re: New Triplex Chains [Re: Ianbuck] #757649
11/30/18 6:32 pm
11/30/18 6:32 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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Just to be clear there is no longitudinal play in this chain, the thing that interested me was the lateral play built in to the individual links.

If they used two single chains when racing to allow for some flex, then this chain has that. I suppose if the drive sprocket and clutch basket have no play then any chain (properly tensioned) will only be subject to longitudinal force and will not flex.

Well I spoke to Renolds technical department today, not very enlightening regarding specific use of this chain, although said it could be used for motorbike primary drive. They couldn't comment on side play of links other than say all Renolds triplex chains are made that way now. I was hoping to speak to someone with some technical expertise !,

Spoke to SRM and they have these chains fitted to their own bikes, and haven't experienced problems.

Tried phoning Andy the Chainman but got no reply.

So I will fit it and see what happens. It's relatively easy to replace the chain should it be necessary, I'll report back when I finally get this bike on the road.

Ian

Re: New Triplex Chains [Re: kevin roberts] #757661
11/30/18 8:03 pm
11/30/18 8:03 pm
Joined: Oct 2007
Posts: 1,546
Auckland NZ
Ignoramus Online content
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Originally Posted by kevin roberts
ive been using renold chain on my race bike-- half the time its at WFO.

chains last two days, then develop tight links. im switching to DID.




Good move .....ive got DID on my A65 best chain ive ever had , havent even had to adjust it.

...infact when i put it on i thought i would be smart and set it slightly tight to save the inevitable adjustment at a few hundred miles..........i had to LOSSEN it off ! no stretch at all

my understanding is that Renolds make several grades of chain....looks like OP got the "budget" version used on agricultural equipment

Last edited by Ignoramus; 11/30/18 8:07 pm.

"There's the way it ought to be and there's the way it is" (Sgt Barnes)
Re: New Triplex Chains [Re: Ianbuck] #757688
12/01/18 1:20 am
12/01/18 1:20 am
Joined: Nov 2012
Posts: 748
Isle of Wight, UK
K
koan58 Online content
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Isle of Wight, UK
If a triplex chain doesn't exhibit any straight compression to extension, but is able to bend as much as shown, then the only "real" chain is the centre row, and the outer rows must have loose clearances between pins and rollers.

Re: New Triplex Chains [Re: Ianbuck] #757945
12/03/18 10:55 am
12/03/18 10:55 am
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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London, UK
Well i spoke to Andy the Chainman today and he basically said if I have a new chain from Renolds then I should use it. If it is unsatisfactory in service then he can supply another make of my choice. So tomorrow it's going on with a new tensioner, as the wear tracks may differ with the floating links.

Only time will tell if this is a good move? However, with a Siamese exhaust and rearset fitted, removing the primary cover is very easy.

Ian

Attached Files 20181201_165004_resized.jpg
Re: New Triplex Chains [Re: Ianbuck] #758120
12/04/18 4:40 pm
12/04/18 4:40 pm
Joined: Aug 2011
Posts: 111
UK
T
TripleTown Offline
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UK
Originally Posted by Ianbuck
This chain came from SRM with the new clutch I bought from them. It's in a Renolds branded box.


Renold Synergy? Blue? A&S? SD?

Renold Website

Re: New Triplex Chains [Re: Ianbuck] #758147
12/04/18 8:14 pm
12/04/18 8:14 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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I'm not sure what type of Renolds chain it is, but this is the box it came in.

Ian

Attached Files 20181204_200302_resized.jpg20181204_200315_resized.jpg
Re: New Triplex Chains [Re: Ianbuck] #758149
12/04/18 8:50 pm
12/04/18 8:50 pm
Joined: Jul 2018
Posts: 103
London, UK
Ianbuck Offline OP

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London, UK
Just had a look at what's stamped on the links.

Looks like Renolds 08 B, could be 06 B

Does this help identify it.?

Attached Files 20181204_204054-1_resized.jpg
Re: New Triplex Chains [Re: Ianbuck] #758155
12/04/18 9:45 pm
12/04/18 9:45 pm
Joined: Dec 2004
Posts: 9,667
Scotland
kommando Offline
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Scotland
06b is std BS chain spec, nothing to suggest it's not just std industrial grade.

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