January 30, 20188 yr A few years ago I bought a couple of brand new oval alloy barrels from a supplier who shall be nameless in the UK and fitted one to my trials Cub. After about two events it had smoke and oil spewing out all over the place and required stripping. I found that the liner had spun in the barrel which misaligned the oil drainage holes resulting in the problems I experienced. I tried contacting the supplier who ignored me completely and I would add that the supplier wasn't UPB, AWR or Armac, but he is well known around the UK. Can anyone tell me if this problem was rampant or was I just unlucky getting a couple from a bad batch, I have always been afraid to use the other one that I bought off him. Is the problem ongoing or has it been fixed, I have heard of other problems such as warping, siezing and excess oil burning. For the money these alloy barrels cost you would hope to get better service out of them. If my supplier wants to contact me to offer a solution or anyone else wants to talk off air, twinshock2@gmail.com. Cheers
January 30, 20188 yr Got a good idea who it was then. Perhaps get a local engineering firm to peg the liner into the barrel as a belt and braces fix ?
January 31, 20188 yr Author I'm not asking people to name names, has anyone else had the same problem or similar. OTF,,, peg the liner ???? , can you briefly explain how this can be safely achieved or contact me privately.
January 31, 20188 yr After two years any warranty would have expired, date of sale etc. Or is it that you bought the barrels and fitted one straight away. Pegging or rather pinning the barrel will only be possible if there is sufficient material in both liner and barrel casting. If memory serves me correctly there ought to be a registering lip at the top of the barrel (female) that the liner lip (male) slots into? The cylinder head then traps both when secured in place, so the liner shouldn’t be loose unless there is a gasket/cylinder issue. For the liner to spin there must be significant play some where. How does the other barrel compare? Back to pinning the liner, you might do better to seek the advice of a reputable engineering company/tuner as there is always another solution. Are there any indications that the liner has moved up and down and not just rotated. Hope you get the issue sorted ??
January 31, 20188 yr On 30/01/2018 at 0:06 AM, cub200 said: A few years ago I bought a couple of brand new oval alloy barrels from a supplier who shall be nameless in the UK and fitted one to my trials Cub. After about two events it had smoke and oil spewing out all over the place and required stripping. I found that the liner had spun in the barrel which misaligned the oil drainage holes resulting in the problems I experienced. I tried contacting the supplier who ignored me completely and I would add that the supplier wasn't UPB, AWR or Armac, but he is well known around the UK. Can anyone tell me if this problem was rampant or was I just unlucky getting a couple from a bad batch, I have always been afraid to use the other one that I bought off him. Is the problem ongoing or has it been fixed, I have heard of other problems such as warping, siezing and excess oil burning. For the money these alloy barrels cost you would hope to get better service out of them. If my supplier wants to contact me to offer a solution or anyone else wants to talk off air, twinshock2@gmail.com. Cheers The Martyn Adams Serco barrel on my Cub has been fine along with all the other work he did and parts supplied to myself and friends, might be worth contacting him http://www.mdamotorcycleengineering.com.au/pages/Martyn-Adams.html Why not try the other cylinder, you may have one good one and one faulty then at least you will know. Edited January 31, 20188 yr by trialsrfun
February 13, 20188 yr 51 minutes ago, cub200 said: I sold the other one as I was too nervous to fit it. Did you tell the purchaser of the potential problems when selling it ?
February 23, 20188 yr On 13/02/2018 at 8:11 AM, b40rt said: Did you tell the purchaser of the potential problems when selling it ? @cub200 think your silence speaks volumes.
February 23, 20188 yr Author Just shows how wrong you can be. I only comment on these sites when I have something constructive to say.
February 24, 20188 yr 2 hours ago, cub200 said: Just shows how wrong you can be. I only comment on these sites when I have something constructive to say. Doesn't answer the question. Did you inform the purchaser you were suspected it could be faulty ? "Can anyone tell me if this problem was rampant or was I just unlucky getting a couple from a bad batch, I have always been afraid to use the other one that I bought off him."
February 24, 20188 yr 10 hours ago, cub200 said: Just shows how wrong you can be. I only comment on these sites when I have something constructive to say.
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