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Author Topic: Tapping sound  (Read 2177 times)

Lorsar

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Tapping sound
« on: December 30, 2021, 02:34:25 »
This tapping sound started recently. 
https://youtu.be/nj5CTHLDKtU
It appears to be in the front by the fan.  Any suggestions on what it might be or where to start troubleshooting?
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Lori
1968 280SL (US)

yves

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Re: Tapping sound
« Reply #1 on: December 30, 2021, 08:46:37 »
it seems to be synchron with one belt turn ?
Mark one belt each time and try to count?
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Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...

Lorsar

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Re: Tapping sound
« Reply #2 on: December 30, 2021, 13:41:55 »
Yes, it is in sync with the engine rev and goes faster when you increase the rev
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Lori
1968 280SL (US)

yves

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Re: Tapping sound
« Reply #3 on: December 30, 2021, 14:21:09 »
So you can identify what belt is involved and have a look all around it and find what tilt it
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Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...

Shvegel

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Re: Tapping sound
« Reply #4 on: January 08, 2022, 13:23:24 »
Sounds a lot like an exhaust leak to me.
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Lorsar

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Re: Tapping sound
« Reply #5 on: January 08, 2022, 14:46:24 »
Had some warmer weather for a  few days so I was able to get it up on ramps and look from underneath.  It looks like the alternater belt is slapping and upon closer inspection, there is a few chunks missing in it.  New belts are on order.
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Lori
1968 280SL (US)

Lorsar

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Re: Tapping sound
« Reply #6 on: January 23, 2022, 23:30:52 »
Got the new belts in and no more tapping sound so all is good again....until the next thing   :P
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Lori
1968 280SL (US)

yves

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Re: Tapping sound
« Reply #7 on: January 24, 2022, 11:38:36 »
 ;)
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Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...
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