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tight the belt on Bamar 1.02
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Lior Keydar
Hi Amelians
Today during sailing I felt something was not ok on the Bamar furler so I decided to open and check the belt. As I opened it I saw that the belt is ok but it was not tight correctly. By trying to tight it I saw that it is not possible to tight it because the screwing is damaged (M6). Did it happen to someone? the hole is only around 7 mm deep. As a repair I could see two possibilies, either drill it new with M7 or to drill a deeper hole and drill the new hole but I am not sure if or how deep I could drill the hole without damaging the motor behind it. Any advice would be more than aprichiated. Thanks, Lior, SHARONA, A54 #018 |
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Hi Lior,
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Your tensioner looks as though it needs to be cleaned. You can buy a rebuild kit for the furler. Very expensive, about €600. When the tensioner is put back in you must use locktight to hold it in and the tension on the belt should not let it move more than 5mm. I have a install sheet that I can send if you need it. I just had to rebuild mine after an inexperienced guy used a drill to wind the furler at high speed. He broke my new belt and also broke the gear at the bottom not obvious in the photo. Very best Barry and Penny "SV Lady Penelope II" Amel 54. #17 Sailng Caribbean See photo:  On 9 Jul 2022, at 16:01, Lior Keydar <lior246@...> wrote:
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Lior Keydar
Dear Barry
Thanks a lot for your feedback. Sure I will clean it. The bearing looks ok. My biggest problem is that the thread is damaged and I cannot lock the screw. can the rebuild kit solve this problem? what includes this kit? Do you know if I can drill a deeper hole? maybe 7-8 mm? This would be the best solution for me but I will not do it until I am sure that I do not damage the motor behind it. Thanks, Lior, SHARONA, A54 #018 |
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Hi Lyor,
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That tensioning pulley needs to rotate near friction free. I am sure is is all corroded and not rotating freely which is why the thread has been ruined…clearly sea water has been getting in… If you do not have the new service kit to replace the tension pulley…I would clean it all up, oil it and get it running. I would also pull the motor out and check that for water ingress. The belt does not need to be more than just snug. Should not be bar taught as it is toothed. You may be able to fix the tension pulley with epoxy but maybe not. If not then you will need to be inventive…as the thread on the aluminium has been damaged… Nick (back in the U.K.) S/Y Amelia AML54-019 Leros On 10 Jul 2022, at 07:24, Lior Keydar <lior246@...> wrote:
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Dear Nick
Thanks a lot for your answer. I do not think that seawater came inside. The pully is maybe dirty but rotating completely free. I cleaned it now, put oil and I am sure it is rotating perfectly. I thought that I have to tension the pully and then tight the screw so that the pully will not move. Am I wrong? My big problem is the thread... Thanks Lior |
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Greg Thomas
Lior,
I have no knowledge of the Bamar furler, but some experience repairing threads. If the thread in the furler body is not too damaged, you may be able to clean/repair it with a M6 bottoming tap. However, the correct way to repair it is with a thread repair kit. Something like this: https://www.amazon.com/XT-AUTO-Stainless-Compatible-Repairing/dp/B07KM1RQWP You drill the hole to a slightly larger diameter, thread the new hole for the stainless steel insert, install the insert, and then trim the insert. This avoids having to drill any deeper. Greg |
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The pulley should be tightly clamped with the aluminium housing as that is how the tension is set, the way the belt is tensioned is to rotate the (the one in your photo)pulley position so the belt is tight but really not too tight…
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When I first bought Amelia my genoa furler was all rusty inside the housing. The belt was broken. I cleaned it all but first time set the belt tight and it only lasted a week. I then set it even tighter and it lasted a day. I then set it just gently snug and it has been good for 5 years. Of course you could take out the motor and then drill and tap the hole deeper. Nick On 10 Jul 2022, at 09:47, Lior Keydar <lior246@...> wrote:
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Lior Keydar
Thank you Nick and Barry for your help
I just wanted to update how I repaired it. I called Bamar and explained the problem. They told me that It is a common problem and happened many times. They told me that I can drill the hole max. another 9 mm and create a new thread. So I let a technician make it. The problem is solved with a bit longer screw. Best, Lior |
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