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Ooh, do not use WD-40 or old sewing machine oil. WD40 will work for a short time but turns to gunk quickly and just add to the current problem. The old oil has solidified and turned to glue.
Pick up some liquid Tri-Flow Synthetic Lube (hardware store or bike shop). Apply 1-2 drops every place that metal rubs on metal. Do NOT oil belts, synthetic parts, or tension disks.
Then direct heated air from a handheld hairdryer into the internal mechanism. You may have to repeat alternating lube and heat. If the oil has solidified and seized, this activity should loosen it.
In the future, be sure to keep the machine cleaned and lubed (even when in storage). An overlocker requires more frequent lube since it stitches so much faster than a sewing machine. If you want, you can pick up oil that is especially for sergers--it is usually a lighter weight than regular sewing machine oil.
depends on the vehicle... If the pulley is in the pillar of the car..you may be able to unjam it by slightly pulling and releasing several times. If it is really jammed ,the belt is probably caught or twisted in the pulley . You man have to remove the covering on the pulley disengage the inertia teeth to release the belt. If the car is real real old the works can get gummed up. In that case spray a little alcohol into the mechanism and see if it will release. Do not use any spray like wd40 ,cause it can get on the belt and ruin it's integrity, Good Luck!
suggest you lube the locking switch under the hood with wd40.also lube the pull handle under the dash with wd40. sometimes it may take 2 people to do this. lube the locking mechanism under hood first. then pull the release handle and spray the wd40 on the rod behind the lever to insure that it gets lubricant to cable. some times you may need to adjust the spring under hood also, simply spray it with wd40 and push upward on the round spring thats attached to the hood, work it upwards with minimal force. continue to spray it while you push it upwards, this will loosen the spring, which will let it do what it's supposed to do when you pull the release inside for hood to pop up. hope this helps, and thank you for choosing fixya.com
try letting the mouse out??? its likley to be the drive belt or rear bearing dry,,, could be the motor bearings dry,,
back bearing and motor bearings could be lubed with WD40 but dont put it any were near the drive belts as they will then slip like mad,
spray on the driv belt a bit of "stop squeak" its for car fan belts realy but it works on any rubber belt
You probably need a new belt, don't buy a cheap belt. I have used cheap before and had noise right away. Ask for a Gates belt. When you sprayed the wd40 it lubed the old belt temporarily so the noise went away. Better to replace all or them at the same time. I am pretty sure the nissan has 2-3 belts.
Not much info to go on, but: Most squeaking is from 3 sources. 1.) Water Pump Bearing. Get some water pump lubricant in there quick to avoid ruining that bearing. (about $3.00) 2.) Idler Belt Tensioner You may be able to lube the back side of this with WD-40, but too much is bad for the serpentine belt. 3.) Power Steering Pump, does not sound like you problem.
It's possible that the alternator is making the chirp noise (bearing) but I would try this first. Start the engine and allow the engine to idle and open the hood and take a spray can of WD40 and shoot a short burst onto the bottom side of the belt and pulley. Dont spray allot as this will cause the belt to slip. The WD40 is to lube the pulley grooves and belt a slight bit. Hope this works!