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chriswh86 posted a topic in Modifications and Performance: 450 Model, 2005-2006, dieselWell, my Fortwo suffered from the dreaded alternator belt slip since I purchased it. I couldnt wait long listenening to it every time id fire the car up. I learnt early that a new pulley was tough to find and usually resulted in purchasing a new alternator. Really not practical when one small component needed to be swapped. I was tempted to make a new pulley on the Lathe but opted for a quicker alternative. I did some searching and came across a post made by @tolsen on the use of a decoupling pulley. I wasn't able to find the exact pulley used but after some more researching I was able to source a pulley from a 2000 Volvo S70 2.3L L5 Turbo. Below is the stock pulley As you can see, the aluminum pulley is showing horrible signs of wear. Each tip has multiple grooves in it. I do like that its lightweight but its not made to last a long time and should be a readily available part at a good price but it is not. And the new Volvo de-coupling pulley beside the old setup. You will notice the new pulley is a lot more involved. In simplest terms the pulley will engage/lock when on the throttle and the belt speed is higher than the current rpm of the alternator pulley. As soon as the belt speed decreases below the pulley rpms the pulley begins to free-wheel. This decreases load on the belt and, in turn, the engine and apparently it will reduce up-shift time. I did not time the upshifts before fixing the pulley but it might have increased slightly. As noticed above the pulley wasn't a perfect fit out of the box. For one, its a 6 rib belt, not a huge deal as you can pick either the top 5 ribs or the bottom 5 ribs to use your belt on. The main concern is that none of the ribs lined up. I was able to easily press the inner race and shift it slightly to align the ribs perfectly. Much better alignment. The photo shows it being off but from my measurements at the time it was perfect. Beautiful new pulley installed and ready to go. I was lucky to grab this pulley off RockAuto for only 50 bucks Canadian! You'll notice it comes with a top cap or outer cap, this is to help protect the bearing. And finally installed back in the car. I've been running this setup for a good few weeks now without issue. The belt is running great. Very happy with the results and the price of the pulley. Has anyone else ran a de-coupling pulley?
Gibby posted a topic in Operation and Maintenance: 450 Model, 2005-2006, dieselI just received my new pair of keys ordered from Amazon. They are complete with a new remote transmitter in each. My old original was worn out to the point where all buttons had holes and the transmitter exposed. The board mounted switch for the unlock button has even popped off the board. ( I now start the car by hitting the lock button with the rear hatch open, causing it to lock-unlock and reset the security.) As you can see in the pic, the new cover section fit my original key without an issue. At least the transmitter is out of the weather for now till I can get the new keys programmed and at least one of them cut to match as one will now be used for parts to repair the original. The keys I ordered were: EC-SELLS $16.90 each NOTE!! These will NOT deliver to Canada and are not available on the Amazon.ca site. I had these delivered to a friend in the US then they simply re mailed them to me.