Author Topic: Interfering silencers  (Read 1540 times)

Online muskrat

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Re: Interfering silencers
« Reply #60 on: 26.01. 2019 11:57 »
I think the whole problem is the original pipes were a continuous multi radius bend. All after market pipes have two bends with a straight section in between. Finding original pipes is like rockinghorse poo. So we're stuck with draft horse sh!t.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
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Online RDfella

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Re: Interfering silencers
« Reply #61 on: 26.01. 2019 17:00 »
So none of the suppliers' pipes fitted exactly. Seems to me there is something we should be aware of here before we slag off this or that supplier, and that's virtually all pattern parts (exhaust or otherwise) will need adjustment of some sort. Heck, I'd bet even NOS might not fit exactly. No two bikes are exactly the same; maybe the exhaust port has been bored slightly off, or maybe the frame / engine mountings are a fraction out - it doesn't take much for the A series pipes to be out somewhere. Albeit it's swing arm, I don't reckon the Armours pipes look too bad on my GF. The LHS one needed a slight tweak, but otherwise I'm satisfied.
'49 B31, '49 M21, '53 DOT, '58 Flash, '00 Firestorm, Weslake sprint bike.

Offline Steverat

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Re: Interfering silencers
« Reply #62 on: 26.01. 2019 17:25 »
RD, they look great. When did Armours make those? They are different, much more like the OEM.

1951 BSA A10 - now returned to Germany
1972 Triumph T100R Daytona
1924 B-S SS80
1965 Triumph SH Cub
1960 AJS M18CS

Online RDfella

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Re: Interfering silencers
« Reply #63 on: 26.01. 2019 17:34 »
Steverat - got them about nine months ago.
'49 B31, '49 M21, '53 DOT, '58 Flash, '00 Firestorm, Weslake sprint bike.

Offline Billybream

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Re: Interfering silencers
« Reply #64 on: 26.01. 2019 19:47 »
Another satisfied Armour's customer, both exhaust and silencers in stainless steel and great quality and fit. Fitted over 7 years ago and polish up great with no discoloration.
Only issue was crack to one of the silencer hanging brackets after 2 or 3 years use.
1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Offline Steverat

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Re: Interfering silencers
« Reply #65 on: 31.01. 2019 01:00 »
A final word, Armours were really good and refunded all my purchase cost, despite the purchase being 3 months ago. Feked sent me pipes with the assurance that they would refund, theirs have gone back too but I have yet to hear from them. Burton Bike Bits had the best fitting new pipes which I have fitted to the bike even though there is a slight silencer touch. I had to adjust the brackets by twisting and unbending them a bit, and putting 1/2" spacers under them.

Josef will be taking the old BSA pipes back with him to Germany, just in case he likes them better. They fit like a glove, but are a bit the worse for wear. S+T were happy to rework them but it would have been expensive (over £200 just for replating). They could also fill the dents with braze before chroming, but that would make it even dearer and they say there is a risk that porosity in the braze can show up as pitting in the chromed surface. Also (my observation) the BSA pipes are made from much lighter gauge material so I think they would be more susceptible to blueing.

I've learned a bit along the way, the pipes have been on and off the bike so many times I can say I know the differences in some detail - enough to confirm that they were made and mastered by different people. But I have not got to the bottom of why they all change the drop from one sweeping curve to two curves and a straight bit. I have spoken to all three firms in some detail but have not been able to speak with the people who make the jigs.

If anyone wants to know more detail I am happy to share on a personal basis, but I dont want to expose it in open forum.

1951 BSA A10 - now returned to Germany
1972 Triumph T100R Daytona
1924 B-S SS80
1965 Triumph SH Cub
1960 AJS M18CS

Offline cyclobutch

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Re: Interfering silencers
« Reply #66 on: 31.01. 2019 07:31 »
The pipes I bought from Armours didn't fit in the exhaust ports. They told me to grind out my ports.
Various, including ...
'58 Iron Head Flash Bitza


Offline Swarfcut

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Re: Interfering silencers
« Reply #67 on: 31.01. 2019 08:30 »
Steve.. Well done with persevering with this at times frustrating situation. On this occasion all of your named suppliers can be congratulated on their customer service. When the dust finally settles, Josef will have a great bike, and you together with all forum members will have learnt a lot.

 Swarfy.

Online Greybeard

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Re: Interfering silencers
« Reply #68 on: 31.01. 2019 10:21 »
The pipes I bought from Armours didn't fit in the exhaust ports. They told me to grind out my ports.
So you did. Am I right?

Online Greybeard

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Re: Interfering silencers
« Reply #69 on: 31.01. 2019 10:22 »
Steve.. Well done with persevering with this at times frustrating situation. On this occasion all of your named suppliers can be congratulated on their customer service. When the dust finally settles, Josef will have a great bike, and you together with all forum members will have learnt a lot.

 Swarfy.
Agreed, but this thread is rather depressing.

Offline BSA_54A10

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Re: Interfering silencers
« Reply #70 on: 31.01. 2019 13:56 »
I think the whole problem is the original pipes were a continuous multi radius bend. All after market pipes have two bends with a straight section in between. Finding original pipes is like rockinghorse poo. So we're stuck with draft horse sh!t.
Cheers

Which is why I get my pipes from Overlander as Barry bends them on a 3 axis mandrel bender so they are continuous bends.
Excellent work when you can get him to do it.
Bike Beesa
Trevor

Online AdrianJ

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Re: Interfering silencers
« Reply #71 on: 05.02. 2019 23:41 »
I've just read this thread and it's depressing me. I bought siamese pipes for my '53 plunger A10 over 12 months ago from Armours. They were very helpful in making a set. Unfortunately I haven't tried to fit them yet. They should be going on in the next 2 weeks. As far as I am aware they are the only people who make siamese pipes for this model. I just hope they fit.
Adrian.
'53 Plunger Flash, Steib S500.


Offline Steverat

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Re: Interfering silencers
« Reply #72 on: 06.02. 2019 06:15 »
Oh dear Adrian, I didn’t set out to depress you and I’m sorry if that was the result. Perhaps you can draw some comfort from the knowledge that they (the suppliers) are supportive. Armours in particular did not quibble about refund even though my pipes were over 3 months old.

1951 BSA A10 - now returned to Germany
1972 Triumph T100R Daytona
1924 B-S SS80
1965 Triumph SH Cub
1960 AJS M18CS

Online AdrianJ

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Re: Interfering silencers
« Reply #73 on: 06.02. 2019 07:54 »
Thanks Steve,  they've been very helpful so far. I'll get over it.
I remember the siamese pipes on my old swiniging arm flash were a b***r to fit.🙂
Just got to time the ignition and put the head on to find out.
Adrian.
'53 Plunger Flash, Steib S500.