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External
Since: Nov 26, 2007
Posts: 4
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(Msg. 1) Posted: Mon Nov 26, 2007 2:49 am
Post subject: 325 knocking,.. please take a listen.
Imported from groups: alt>autos>bmw (more info?)
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External
Since: Mar 12, 2005
Posts: 394
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(Msg. 2) Posted: Mon Nov 26, 2007 4:30 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"cosmo" wrote in message
> Mp3 here:
> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>
> I'm not that net savvy so I hope this works.
>
> At 145k miles, my "previously owned" '88 325 makes this sound when I
> first start it up. I've only owned it about 500 miles now and it's
> getting more noticeable the colder the weather gets.
> It's about 38F for this recording. It goes away after the car warms up
> to operating temp. It taps if it's been sitting for a few hours during
> the day til the temp comes up again but not this bad. It drives fine
> and doesn't smoke or use much oil.
> I had a little trouble with the recording so after the starter cranks
> that's me turning the sound up a bit.
> If anyone has any car mechanic type advice I'd be grateful.
> Thank you.
Top end ish.
Does this car have hydraulic tappets? |
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External
Since: Nov 26, 2007
Posts: 3
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(Msg. 3) Posted: Mon Nov 26, 2007 6:01 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"cosmo" wrote in message
> Mp3 here:
> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>
> I'm not that net savvy so I hope this works.
>
> At 145k miles, my "previously owned" '88 325 makes this sound when I
> first start it up. I've only owned it about 500 miles now and it's
> getting more noticeable the colder the weather gets.
> It's about 38F for this recording. It goes away after the car warms up
> to operating temp. It taps if it's been sitting for a few hours during
> the day til the temp comes up again but not this bad. It drives fine
> and doesn't smoke or use much oil.
> I had a little trouble with the recording so after the starter cranks
> that's me turning the sound up a bit.
> If anyone has any car mechanic type advice I'd be grateful.
> Thank you.
It sounds to me like hydraulic tappets - I had the same symptoms with my
previous BMW - but nothing to worry about. On my car the noise went away
after 10 or 20 seconds. Alternatively it could be injector noise?
Regards,
Laurence.
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----------------- >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Sep 09, 2005
Posts: 301
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(Msg. 4) Posted: Mon Nov 26, 2007 6:01 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Laurie Bridges" wrote
> "cosmo" wrote
>> Mp3 here:
>> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>>
>> I'm not that net savvy so I hope this works.
>>
>> At 145k miles, my "previously owned" '88 325 makes this sound when I
>> first start it up. I've only owned it about 500 miles now and it's
>> getting more noticeable the colder the weather gets.
>> It's about 38F for this recording. It goes away after the car warms up
>> to operating temp. It taps if it's been sitting for a few hours during
>> the day til the temp comes up again but not this bad. It drives fine
>> and doesn't smoke or use much oil.
>> I had a little trouble with the recording so after the starter cranks
>> that's me turning the sound up a bit.
>> If anyone has any car mechanic type advice I'd be grateful.
>> Thank you.
>
> It sounds to me like hydraulic tappets - I had the same symptoms with my
> previous BMW - but nothing to worry about. On my car the noise went away
> after 10 or 20 seconds. Alternatively it could be injector noise?
An '88 325i would have an M20 engine, which does not have hydraulic
valve lifters. Probably needs a valve lash adjustment.
FloydR >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Feb 18, 2004
Posts: 43
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(Msg. 5) Posted: Tue Nov 27, 2007 9:55 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Nov 28, 2007
Posts: 2
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(Msg. 6) Posted: Wed Nov 28, 2007 8:16 am
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"cosmo" wrote in message
> Mp3 here:
> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>
> I'm not that net savvy so I hope this works.
>
> At 145k miles, my "previously owned" '88 325 makes this sound when I
> first start it up. I've only owned it about 500 miles now and it's
> getting more noticeable the colder the weather gets.
> It's about 38F for this recording. It goes away after the car warms up
> to operating temp. It taps if it's been sitting for a few hours during
> the day til the temp comes up again but not this bad. It drives fine
> and doesn't smoke or use much oil.
> I had a little trouble with the recording so after the starter cranks
> that's me turning the sound up a bit.
> If anyone has any car mechanic type advice I'd be grateful.
> Thank you.
I always try to look at the simpliest solution first. Since it is
temperature sensative my first question is what type of oil are you using? >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Nov 26, 2007
Posts: 4
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(Msg. 7) Posted: Wed Nov 28, 2007 7:58 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Nov 26, 2007
Posts: 4
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(Msg. 8) Posted: Wed Nov 28, 2007 8:04 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Nov 28, 2007
Posts: 2
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(Msg. 9) Posted: Thu Nov 29, 2007 8:36 am
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"cosmo" wrote in message
> On Wed, 28 Nov 2007 08:16:20 -0800, "winkie"
> wrote:
>
>>
>>"cosmo" wrote in message
>>
>>> Mp3 here:
>>> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>>>
>>> I'm not that net savvy so I hope this works.
>>>
>>> At 145k miles, my "previously owned" '88 325 makes this sound when I
>>> first start it up. I've only owned it about 500 miles now and it's
>>> getting more noticeable the colder the weather gets.
>>> It's about 38F for this recording. It goes away after the car warms up
>>> to operating temp. It taps if it's been sitting for a few hours during
>>> the day til the temp comes up again but not this bad. It drives fine
>>> and doesn't smoke or use much oil.
>>> I had a little trouble with the recording so after the starter cranks
>>> that's me turning the sound up a bit.
>>> If anyone has any car mechanic type advice I'd be grateful.
>>> Thank you.
>>
>>I always try to look at the simpliest solution first. Since it is
>>temperature sensative my first question is what type of oil are you using?
>>
>
> 10-30 chevron.
> I forgot to ask,.. can anyone tell me what size the crank pulley nut
> is so I can roll the engine over by hand to adjust the valves? The
> Bentley manual seems a bit vague in describing this setup. It just
> says, turn the engine until both cam lobes are generally pointing down
> for each cylinder, and gives the order.
>
Maybe try 5W-40. >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Oct 10, 2007
Posts: 13
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(Msg. 10) Posted: Thu Nov 29, 2007 10:05 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"cosmo" wrote in message
> On Wed, 28 Nov 2007 08:16:20 -0800, "winkie"
> wrote:
>
>>
>>"cosmo" wrote in message
>>
>>> Mp3 here:
>>> http://www.rockisland.com/~zephyr/boat/325knock.mp3
>>>
>>> I'm not that net savvy so I hope this works.
>>>
>>> At 145k miles, my "previously owned" '88 325 makes this sound when I
>>> first start it up. I've only owned it about 500 miles now and it's
>>> getting more noticeable the colder the weather gets.
>>> It's about 38F for this recording. It goes away after the car warms up
>>> to operating temp. It taps if it's been sitting for a few hours during
>>> the day til the temp comes up again but not this bad. It drives fine
>>> and doesn't smoke or use much oil.
>>> I had a little trouble with the recording so after the starter cranks
>>> that's me turning the sound up a bit.
>>> If anyone has any car mechanic type advice I'd be grateful.
>>> Thank you.
>>
>>I always try to look at the simpliest solution first. Since it is
>>temperature sensative my first question is what type of oil are you using?
>>
>
> 10-30 chevron.
> I forgot to ask,.. can anyone tell me what size the crank pulley nut
> is so I can roll the engine over by hand to adjust the valves? The
> Bentley manual seems a bit vague in describing this setup. It just
> says, turn the engine until both cam lobes are generally pointing down
> for each cylinder, and gives the order.
>
32mm >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Nov 29, 2007
Posts: 3
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(Msg. 11) Posted: Thu Nov 29, 2007 10:57 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Jack wrote:
> "cosmo" wrote in message
>
>
>>On Wed, 28 Nov 2007 08:16:20 -0800, "winkie"
>>wrote:
>>
>>
>>>"cosmo" wrote in message
>>>
>>>
>>>>Mp3 here:
>>>>http://www.rockisland.com/~zephyr/boat/325knock.mp3
>>>>
>>>>I'm not that net savvy so I hope this works.
>>>>
>>>>At 145k miles, my "previously owned" '88 325 makes this sound when I
>>>>first start it up. I've only owned it about 500 miles now and it's
>>>>getting more noticeable the colder the weather gets.
>>>>It's about 38F for this recording. It goes away after the car warms up
>>>>to operating temp. It taps if it's been sitting for a few hours during
>>>>the day til the temp comes up again but not this bad. It drives fine
>>>>and doesn't smoke or use much oil.
>>>>I had a little trouble with the recording so after the starter cranks
>>>>that's me turning the sound up a bit.
>>>>If anyone has any car mechanic type advice I'd be grateful.
>>>>Thank you.
>>>
>>>I always try to look at the simpliest solution first. Since it is
>>>temperature sensative my first question is what type of oil are you using?
>>>
>>
>>10-30 chevron.
>>I forgot to ask,.. can anyone tell me what size the crank pulley nut
>>is so I can roll the engine over by hand to adjust the valves? The
>>Bentley manual seems a bit vague in describing this setup. It just
>>says, turn the engine until both cam lobes are generally pointing down
>>for each cylinder, and gives the order.
>>
>
>
> 32mm
>
>
Isn't that engine supposed to use 20W-50? My 1989 325i does.
And by the way, I find it easier to put the car in 5th gear and push it
a little to get to the correct valve timing position. YMMV. >> Stay informed about: 325 knocking,.. please take a listen. |
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External
Since: Oct 06, 2007
Posts: 18
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(Msg. 12) Posted: Thu Nov 29, 2007 10:57 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Nov 26, 2007
Posts: 4
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(Msg. 13) Posted: Thu Nov 29, 2007 11:08 pm
Post subject: Re: 325 knocking,.. please take a listen. [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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