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Author Topic: Big noise from underneath  (Read 5665 times)
131DHOC
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« on: July 23, 2014, 09:54:06 PM »
Hello, this morning I was driving my 131 at low speed, and suddenly a big noise from the lower part of the car arose. It's not from the engine, it just shows up when the car is moving and it's bigger and faster when the car goes faster. It's something like a big balm cricket under my car singing. Now the noise has become much lower and it mainly appears when I accelerate. Could it just be a bearing or it is more probable a transmission problem such as differential? It's not the rear brake, I got the two inspected and no issues. The differential shows something as a tac-tac-tac when the car is on the lift and I spin the wheels. But I forgot to inspect the wheel bearings, so I can't say where is the problem.
« Last Edit: July 24, 2014, 04:52:05 AM by 131DHOC » Logged
kev131
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« Reply #1 on: July 23, 2014, 10:30:49 PM »
On two of my 131s I had a loud clicking noise from underneath which turned out to be the fuel line vibrating against the inside floor of the car. Check that yours is secured well and can't vibrate. If it's that .....it's an inexpensive and easy fix. Fingers crossed....
« Last Edit: July 24, 2014, 06:09:12 AM by kev131 » Logged
Kevin Doyle
Fiat 131 Mirafiori Sport 2000TC
Fiat 131 Supermirafiori S3 2000TC
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131DHOC
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« Reply #2 on: July 25, 2014, 06:22:50 PM »
I'm still not sure, I think it should be something in the gearbox or differential, but it still works fine. The noise is still present but much much lower, and it's like a squeal of metal grinding.
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Robert
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« Reply #3 on: July 26, 2014, 02:26:47 PM »
Rear axle oil seal (one side). Had this problem when returning from 3MA13. My fix was to install another rear axle...
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Current motors: Fiat 131 Sport 2000TC "WR Replica" 1978, Fiat Dino 2400 BC 1972, Alfa Romeo GTV 2000 1974, Mercedes-Benz 560SEL 1987, Alfa Romeo 166 3.0 24V 1999, Volvo V70 T5 2000 ("VascoExpress")
sid131
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« Reply #4 on: July 26, 2014, 02:57:40 PM »
Fit Toyota axle problem cured & all future problems also Wink
« Last Edit: August 16, 2014, 07:48:15 PM by sid131 » Logged
131DHOC
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« Reply #5 on: July 27, 2014, 05:38:26 PM »
By now the noise has completely disappeared, I suspect it could be something that will give me bad surprises, but as I have to do 60 kilometers every day with the car I cannot inspect, hope will give me no more trouble. Can the gearbox do such a noise and then stay quiet without signs of damage?
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TOAD
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« Reply #6 on: August 14, 2014, 02:04:33 PM »
Record it and put it on youtube or something
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131DHOC
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« Reply #7 on: August 16, 2014, 07:10:00 PM »
Quote from: TOAD on August 14, 2014, 02:04:33 PM
Record it and put it on youtube or something

I had the same idea but the noise is now too low to be recorded. Well, just wait an see what it happens...
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