gearhead222
Member
Dear Fellow Members-Definitely a Newbie here but mechanically inclined. I just fitted (whew!) and installed a 48cc Grubbee 2 stroke to Wally Worlds best Huffy, the Cranebrook Bikes name is Pepe after the conversion.
The engine and rear sprocket are well within the 1/2 cm range of sideplay, but the chain is slightly digging into the plastic outer pulley wheel lip unless I angle the idler bracket out at its top. This is causing undue side tension on the lower part of the chain compared to the upper part of the chain. The chain is still riding very close to the outer lip of the idler pulley wheel-I cannot center the chain due to the design of the bracket-bending won't help either A more senior member recommended leaving the idler assembly off on beach cruisers.I am worried not only about premature idler pully wear but moreso about engine drive sprocket wear. I am ensuring that the chain tension is about 1/2" deflection also. Chain is very noisy with the idler assembly. If the front and rear sprockets are very close in alignment, should I remove the idler pulley assembly and shorten the chain? If this is worth trying, should the chain deflection still be 1/2" without the idler pulley assembly? FWIW, I checked the frame where the rear wheel axle bolts onto and the two rear frame brackets are angled up roughly at 30 degrees giving me about 1/2" of chain adjustment play. I am open to any and all suggestions. Thanx!-Gearhead222
The engine and rear sprocket are well within the 1/2 cm range of sideplay, but the chain is slightly digging into the plastic outer pulley wheel lip unless I angle the idler bracket out at its top. This is causing undue side tension on the lower part of the chain compared to the upper part of the chain. The chain is still riding very close to the outer lip of the idler pulley wheel-I cannot center the chain due to the design of the bracket-bending won't help either A more senior member recommended leaving the idler assembly off on beach cruisers.I am worried not only about premature idler pully wear but moreso about engine drive sprocket wear. I am ensuring that the chain tension is about 1/2" deflection also. Chain is very noisy with the idler assembly. If the front and rear sprockets are very close in alignment, should I remove the idler pulley assembly and shorten the chain? If this is worth trying, should the chain deflection still be 1/2" without the idler pulley assembly? FWIW, I checked the frame where the rear wheel axle bolts onto and the two rear frame brackets are angled up roughly at 30 degrees giving me about 1/2" of chain adjustment play. I am open to any and all suggestions. Thanx!-Gearhead222
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