AeroMatt Posted February 21, 2005 Share Posted February 21, 2005 I'm installing some lightweight pulleys and have managed to get them all on except for the alternator one. I've read through the Toyota manual which is about as clear as mud (Using 3 SST's and a vice!). So has anyone done this with the alternator still on the car and how exactly is it done? I'm guessing that you use a 10mm socket for the middle to hold the pulley steady and a ring spanner to unscrew the larger nut. I gave this method a quick try but as it wasn't giving, decided I'd check the right way before really forcing it. Thanks, Matt Link to comment Share on other sites More sharing options...
b_have Posted February 21, 2005 Share Posted February 21, 2005 Matt, about to fit mine also, was going to ask the same question! BTW any problems with your underdrive pulley? Did you use the starter to crack it? Also, Have you replaced the PS pump pulley, I couldn't source one of these so having one made. While i#m at it , I'm stripping out the complete aircon system (one less pulley!) and using a shorter belt. Link to comment Share on other sites More sharing options...
AeroMatt Posted February 22, 2005 Author Share Posted February 22, 2005 I'm not swapping the crank pulley as I've heard that the lightweight ones upset the harmonics and cause premature engine wear. I don't know how true this is, but if you search on SupraForums for "crank pulley" you'll see what I mean. However, if I was to swap this one out I'd probably use the starter method to crack it free. I've swapped the PS one which was the easiest, you just need to put a bar through the pulley against the block to hold it in place and unbolt it. The fan pulley was easy enough too (4 x 12mm nuts), the only stumbling block was getting off the fan shroud to get at it. I just need to get that alternator one changed now. Link to comment Share on other sites More sharing options...
Ian C Posted February 22, 2005 Share Posted February 22, 2005 I'd be interested to know this too I thought the pulley you didn't get in the set was the aircon compressor one? The PAS one I have. I used to have a lightweight crank pulley and Digsy seriously put me off it so I swapped it back to the stock one and noticed.... no difference Not that I noticed a difference when I put it on in the first place, apart from a bit less engine braking... -Ian Link to comment Share on other sites More sharing options...
b_have Posted February 22, 2005 Share Posted February 22, 2005 Hmmm....I did lots of research on inertial/harmonic balancing and came to the conclusion that for my setup it won't be a problem. Also trying to understand the calculations for designing this dampner, and to what effect reducing the inertia at the rear end of the crankshaft has (lightweight TC) in relation to the calculation. Well, time will tell. BTW my engine probably does less than 3000 miles per year so longevity is not a huge issue. Anyway, Alternator pulley.......anyone? Link to comment Share on other sites More sharing options...
Ian C Posted February 22, 2005 Share Posted February 22, 2005 I know what you're saying Charlie, I heard mixed reviews as well, but it pretty much came down to one of two choices: 1) Run the lightweight pulley and risk anything from accelerated bearing wear to the crank breaking and destroying the whole short block 2) Run the stocker pulley and have it balanced as Toyota intended* That's all the factors in the equation as far as I saw because I tried the lightweight pulley and it made not one jot of difference to the drive of the car, apart from occasionally I'd worry about the potential damage it was doing. It was a no-brainer to swap it back ASAP once Digsy had put the biggest pulley 'dampener' I've ever seen on me Minor over - anyone know how to undo this nut then? I've got a spare alternator I can practice on But I'd rather not have to... -Ian *don't give me anything about "ooooh well why not run it with turbos as Toyota intended then meep meep meep" you know there is a difference between more engine power and running something out of balance, I mean you would put on 18" rims but you wouldn't run them without wheel weights and expect the bearings to last long would you... Link to comment Share on other sites More sharing options...
AeroMatt Posted February 24, 2005 Author Share Posted February 24, 2005 I don't know if this will be any help (it wasn't to me!). Here's Toyota's method of removing the alternator pulley. If you work out an easier way, please let me know. Link to comment Share on other sites More sharing options...
b_have Posted February 24, 2005 Share Posted February 24, 2005 Hmmm.......Don't like that pulley much anyway. Link to comment Share on other sites More sharing options...
AeroMatt Posted March 2, 2005 Author Share Posted March 2, 2005 Just to complete this, Dude answered on another thread and I took his advice with a slight change. (I used a 10mm socket rather than an allen key) I can't believe how simple this actually was. I used a 22mm (or 7/8" would do it) swan neck ring spanner for the large nut and used a ratchet with a 10mm socket in the centre to hold the shaft in place. I wedged the ratchet against the left of the engine bay and forced the large nut anticlockwise using the spanner. Its probably worth changing this pulley if you're going to the trouble of doing the others as I found the biggest difference in weight between the alternator ones. Hope this helps Link to comment Share on other sites More sharing options...
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