C_Strike Posted February 23, 2012 Share Posted February 23, 2012 (edited) Hey all, im getting a lovely rotational squeeking noise that i can only assume is the timing belt cog things (Technical i know ... Its the numerous cogs the belt infront of the block runs around). Is it worth a little wd40 on each of the cogs axle area to try and aleviate the noise? or is it going to do more harm than good? Its only a temporar fix anyway ...Did that make sense to anyone? lol NB - I probably mean the Pulleys.... maybe? lol Edited February 23, 2012 by C_Strike NB (see edit history) Quote Link to comment Share on other sites More sharing options...
kjgreen3 Posted February 23, 2012 Share Posted February 23, 2012 Hey all, im getting a lovely rotational squeeking noise that i can only assume is the timing belt cog things (Technical i know ... Its the numerous cogs the belt infront of the block runs around). Is it worth a little wd40 on each of the cogs axle area to try and aleviate the noise? or is it going to do more harm than good? Its only a temporar fix anyway ...Did that make sense to anyone? lol NB - I probably mean the Pulleys.... maybe? lol I'm assuming you mean the serpentine belt that drives the alternator, air con and power steering pulleys and not the timing belt. If so grease and oil on the belt is a NO NO. I've checked the Supra Maintenance Guide and when changing the timing belt it says not to get any contaminates (oil, grease, dirt even water!) on it. I assume the same is for the serpentine belt. IIRC a common problem is alignment, start the engine with the bonnet up and have a look at that belt at 90 degrees to the engine (look down the length of the belt) and see if you can see it shifting from the front to the back of any of the pulleys. Alternatively get a piece of largish diameter pipe put one end next to your ear and use the other end (bit like a stethoscope!) to trace where the noise is coming from, NOTE BE VERY CAREFUL NOT TO GET THE PIPE OR YOUR HAND TOO CLOSE TO ANY MOVING PARTS WHILST THE ENGINE IS RUNNING!! Another possible cause is the tensioner bearing may have worn out, this is the smallest of the pulley wheels around about 3 inches in diameter and its sole use is to take out any slack in the belt. If its not been changed in a fair few years this could be the cause of your squeeking. If neither of these provide the cause, it could be your viscous fan is on its way out or mis-aligned (are all the blades intact, no chips or missing blades?) due to adverse vibration or old age. Other members may also be able to provide some better advise. HTH in the mean-time. Quote Link to comment Share on other sites More sharing options...
tony tt Posted February 23, 2012 Share Posted February 23, 2012 Does it go away once the car is up to temp? Mine was at this and it turned out to be the water pump pulley that needed replaced. Quote Link to comment Share on other sites More sharing options...
Robzki Posted February 23, 2012 Share Posted February 23, 2012 You can get a spray 'belt slip' from most motor factors, it never eleviates the problem for long but a quick spray will tell you whether it is the belt slipping due to age or as said above, misalignment. Could be worth changing the belt anyway as they can get harder as they age and get noisy. Possibly worth searching the faq etc for crank damper as I think these can get noisy if they start to break up. expensive though Quote Link to comment Share on other sites More sharing options...
Supra N_A Posted February 23, 2012 Share Posted February 23, 2012 Does it go away once the car is up to temp? Mine was at this and it turned out to be the water pump pulley that needed replaced. The belt needed replaced?? How much did this cost you mate and were did you get the parts? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 23, 2012 Share Posted February 23, 2012 Its more than likely the belt tensioner pulley, the bearings do go over time. Quote Link to comment Share on other sites More sharing options...
C_Strike Posted February 23, 2012 Author Share Posted February 23, 2012 well thanks for your input. Its much more prominant in cold weather, i think thats more significant than warming the engine. I dont believe its the belt itself, more like the actual cogs/pulley things the belt rides on, its got a squeel remenicant of an un-oiled mountain bike . It just sounds like something needs a bit of lubing, lol Il try the Stethascope idea and try to locate it in the mean time. Quote Link to comment Share on other sites More sharing options...
tony tt Posted February 23, 2012 Share Posted February 23, 2012 Get your crank pulley checked aswell mine sheered off after a few weeks of it squeezing. Quote Link to comment Share on other sites More sharing options...
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