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Double Belt your kaboom!

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#1 Superduper

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Posted 03 March 2010 - 12:25 AM

When it's time to rebelt your kaboom, you may notice that the setup has provisions for 2 belts. Each and every pulley including the motor pinion has 2 grooves. BUT JVC only installs 1 belt at the factory. I wondered about this and whether a 2 belt setup would work -- It does. I tried it and no problems at all. The pulleys are quite slick and easy to slip, even with the Sony-like double capstan wrap around setup. Medium belts were installed at the factory. When doing a double belt setup, you may want to install small belts instead of medium to prevent over tensioning the motor bearings. The goal here is to increase friction from implementing a dual belting source thereby increasing belt contact area. Of course increased friction can also be accomplished via increased tensioning but that causes eventual problems with motor bearings and the motor installed on these kabooms is puny. Heck, the entire cassette mechanism is puny maybe 3 ounces, unlike the 4 pounder mechanical assembly I'm used to seeing in the classic setups -- rather disappointing, really.


#2 oldskool69

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Posted 03 March 2010 - 12:30 AM

Good info! :thumbsup:

#3 redbenjoe


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Posted 03 March 2010 - 04:09 AM

Good info! :thumbsup:


#4 MasterBlaster84

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Posted 03 March 2010 - 10:15 AM

Thanks for sharing SD. :thumbsup:
All Kaboom owners will eventually have to do this since the decks don't last nearly as long as the old 4 pounders your referrencing. :thumbsdown:

#5 roddy@radiohier

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Posted 03 March 2010 - 03:08 PM

Thats why the tape mech stuffs up a lot on these units. For a bbx thats around a decade old, I've seen to many of these with belt probs already.

#6 Johnny

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Posted 03 March 2010 - 03:32 PM

Super (Norm) knows his sh*t :yes:

#7 blah blah

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Posted 04 March 2010 - 11:57 AM

Super idea SD :thumbsup: I wondered about the double channeling on the kaboom. dual belting is a great idea, would probably last about forever...