knocking noise
knocking noise
hi all
hope you can help, i have a knocking noise coming for the prop as it spins i was told its nothing major and its something that needs changing but cant remember what they said
any ideas?
cheers
hope you can help, i have a knocking noise coming for the prop as it spins i was told its nothing major and its something that needs changing but cant remember what they said
any ideas?
cheers
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- *** V3M DONOR ***
- Posts: 9143
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- Location: Newcastle Upon Toon
Re: knocking noise
According to other posts of your you have a 1.7, so the prop itself has no moving parts. Try it with the clutch in, and then with the clutch out and the gearbox in neutral. That will give some further indication as to the location. I'm guess it does it in Neutral with the clutch out, but probably stops with the clutch in.
Also under the car with the engine off there should be little backlash or movement of the prop at the clutch input shaft. Just try to rock it back and forth to check if there is any rotational or sideways looseness.
Another thing to do is compare it to another similar car. The the drive bearings in these cars are always a bit noisy if you listen for it outside the car.
Also under the car with the engine off there should be little backlash or movement of the prop at the clutch input shaft. Just try to rock it back and forth to check if there is any rotational or sideways looseness.
Another thing to do is compare it to another similar car. The the drive bearings in these cars are always a bit noisy if you listen for it outside the car.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7
Re: knocking noise
yea it happens in neutral when im sitting still but when im driving it goes awayRide_on wrote:According to other posts of your you have a 1.7, so the prop itself has no moving parts. Try it with the clutch in, and then with the clutch out and the gearbox in neutral. That will give some further indication as to the location. I'm guess it does it in Neutral with the clutch out, but probably stops with the clutch in.
Also under the car with the engine off there should be little backlash or movement of the prop at the clutch input shaft. Just try to rock it back and forth to check if there is any rotational or sideways looseness.
Another thing to do is compare it to another similar car. The the drive bearings in these cars are always a bit noisy if you listen for it outside the car.
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- Posts: 1921
- Joined: 06 Dec 2008 09:35 pm
- Location: Netherlands.
- Contact:
Re: knocking noise
clutch release bearing
Re: knocking noise
The clutch is also out when you drive off so why would the gearbox being in gear affect it?
Does it go away when you put the the clutch in?
Can't think why it would do that other than rotational looseness.
Does it go away when you put the the clutch in?
Can't think why it would do that other than rotational looseness.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7
Re: knocking noise
yea it goes away when i put the clutch in and im in gear
it only happens when in sitting still not in gear
it only happens when in sitting still not in gear
Re: knocking noise
Sounds like general looseness in either the clutch shaft bearing or gearbox front bearing.
I suggest comparing it to another 340 to try to determine how serious it is. They do make a bit noise if you listen for it.
I suggest comparing it to another 340 to try to determine how serious it is. They do make a bit noise if you listen for it.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7