Loud Squeal at 3000+
#1
getaway driver for hire
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Loud Squeal at 3000+
ok so i have a 1985 rx7 gs 12a NA ive had it for a month now to this day it was a major fixer upper but she runs pretty damn well for someone who has never known much about rotary engines until now. anywho i was taking her out to work the other day and as i took her to about 3500 rpm i heard this really loud squeal coming from the car....cant seem to place it anywhere as to front or rear end....now it wont do it as soon as i start her up but after driving her for 10 to 15 min she does the squealy thing....im sorta at a loss here so any help would be fantastic....
#2
Too old to act my age
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Without having much info to go on, it's really difficult to give an accurate answer. However, if the air pump is not on the car, and it only has the alt belt driving the water pump, that's the place to start checking. The alt belt doesn't have enough contact area with the water pump pulley, and is very prone to slipping at higher RPM. The older the belt, the lower the RPM it will start to slip.
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Well, for starters, is the air pump in place, with a belt on it? If not, see above.
If the air pump is place, check the tension and condition of the belts. Loose or well worn belts will slip. Especially under the load of high RPM, and the drag of the fan.
If the air pump is place, check the tension and condition of the belts. Loose or well worn belts will slip. Especially under the load of high RPM, and the drag of the fan.
#7
Old Fart Young at Heart
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Open the hood, start the engine then stand over the engine bay and rev until the squeal starts. If the squeal is rpm dependent, then it's either belt slippage or a bearing failing in the waterpump, airpump or power steering. Belt deflection at the midpoint between the pulleys should be less than 1/2".
There is also the odd chance that the squeal may be a vcuum leak.
There is also the odd chance that the squeal may be a vcuum leak.
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