The BMW UUC Digest
Volume 2 : Issue 413 : "text" Format
Messages in this Issue:
<E30> engine running problem
Re: <E30> engine running problem
Pictures from GGC Top Driver Shootout
<E36> oil leak question
Re: <E36> oil leak question
----------------------------------------------------------------------
Date: Sat, 30 Oct 2004 22:03:56 -0400
From: "Pharr, Jeff" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: <E30> engine running problem
Message-ID: <[EMAIL PROTECTED]>
I've been chasing an E30 engine issue for a while now and i'm looking
for a clue or two. Car is an '89 325iX
Engine has had a fresh rebuild and was running very strong, has maybe 4K
miles on it. The problem started as a dead spot around 4K RPMs that was
very intermittent and typically only when the engine was cold.
The symptoms have gotten worse and now it is barely running. It is easy
to start and will idle reasonable well (slight pulsing) but when you rev
the motor there is a periodic miss at all RPM ranges. It drops out very
briefly about every half second or so at all RPM ranges until the engine
is warm and then the drop out occur about every second.
I have swapped in a backup AFM with no change. I have replaced plug
wires, cap and rotor. I just pulled the plugs and #6 gap was about half
what it should have been. I regapped the plug and it did not seem to
have much effect.
The only other thing i can think to mention is that the car JUST passed
NoVA emissions with flying colors, but there was a problem completing
the idle test. The motor was idling very smoothly (no pulsing at all)
but the idle test kept failing because it looked like the test equipment
picking up a false spark plug signals. The tester repeated the test a
bunch of times and kept moving the pick up from plug to plug and it
finally passed. Very odd...
Any thoughts?
ECU... every ECU failure i've seen has left the car in a non-start mode
Temp sensor... problem is there both warm and cold, but symptoms are
slightly different
Leaky injector o-ring... doesnt quite seem to fit the symptoms
Crank sensor... Seems like the best guess at this point but i've never
had one of these fail.
Intake air leak... engine speed does not seem to change the symptoms and
the car just did pass emissions really well.
--Jeff
------------------------------
Date: Sun, 31 Oct 2004 07:55:12 -0800
From: JKerouac <[EMAIL PROTECTED]>
To: "Pharr, Jeff" <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
Subject: Re: <E30> engine running problem
Message-ID: <[EMAIL PROTECTED]>
Jeff,
The coolant temperature sensor is inexpensive and easy to replace,
so try r&r'ing that first.
Are you getting a CE? How fresh is the O2 sensor?
Are the ground straps from the injection harness snug? try filing the
contact points and metal eyelets the fastening bolts go through.
Also, is your backup AFM know good? and can you test the existing one in
another car?
Good Luck,
Barry
Pharr, Jeff wrote:
>I've been chasing an E30 engine issue for a while now and i'm looking
>for a clue or two. Car is an '89 325iX
>Engine has had a fresh rebuild and was running very strong, has maybe 4K
>miles on it. The problem started as a dead spot around 4K RPMs that was
>very intermittent and typically only when the engine was cold.
>The symptoms have gotten worse and now it is barely running. It is easy
>to start and will idle reasonable well (slight pulsing) but when you rev
>the motor there is a periodic miss at all RPM ranges. It drops out very
>briefly about every half second or so at all RPM ranges until the engine
>is warm and then the drop out occur about every second.
>I have swapped in a backup AFM with no change. I have replaced plug
>wires, cap and rotor. I just pulled the plugs and #6 gap was about half
>what it should have been. I regapped the plug and it did not seem to
>have much effect.The only other thing i can think to mention is that the car JUST
>passed
>NoVA emissions with flying colors, but there was a problem completing
>the idle test. The motor was idling very smoothly (no pulsing at all)
>but the idle test kept failing because it looked like the test equipment
>picking up a false spark plug signals. The tester repeated the test a
>bunch of times and kept moving the pick up from plug to plug and it
>finally passed. Very odd...
>Any thoughts?
>ECU... every ECU failure i've seen has left the car in a non-start mode
>Temp sensor... problem is there both warm and cold, but symptoms are
>slightly different
>Leaky injector o-ring... doesnt quite seem to fit the symptoms
>Crank sensor... Seems like the best guess at this point but i've never
>had one of these fail.
>Intake air leak... engine speed does not seem to change the symptoms and
>the car just did pass emissions really well.--Jeff
>
>
------------------------------
Date: Sun, 31 Oct 2004 10:19:40 -0800
From: "Scott & Charlotte Miller" <[EMAIL PROTECTED]>
To: "UUC Digest" <[EMAIL PROTECTED]>,
"E30 Yahoo Group" <[EMAIL PROTECTED]>
Subject: Pictures from GGC Top Driver Shootout
Message-ID: <[EMAIL PROTECTED]>
The links below take you to pictures from the 2004 GGC Top Driver
Shootout autocross on Oct. 24 at the Marina Municipal Airport. Kris
Linquist is relatively new at motorsport photography, but still gets
some great shots. I like the reflections off of the Fechner Cup
trophy. Compare them to Doug Richardson's shots. Doug has been doing
photography for car magazines. His shots better capure the excitement
of the moving car. Also, the sharper focus better allows you to see
the peeling paint on the hood of my E30 325i (#4). I'd like to
believe that the paint peeled due to my higher speeds. But that is
only in my dreams.
http://www.linquist.net/gallery/041024_AutoX
http://www.sportscarimage.com/Autox/bigdog/
The event was won by Ken Garcia for the second year in a row. He
joins Darrel Lunge (3 times) and Bob Maher (2 times) as the only
multiple winners.
Scott Miller
GGC BMW CCA
------------------------------
Date: Sun, 31 Oct 2004 18:25:51 -0600
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: <E36> oil leak question
Message-ID: <[EMAIL PROTECTED]>
Gruppe,
Left my 92 325i (111K on the clock) with my independent tech this week
to do some PM and he found a leak in the oil pan gasket. I'm thinking
it's probably due to the 6 months it spent of mostly sitting in the
driveway with minimal driving (about once every 2 or 3 wks) while I was
in Australia on a temporary work assignment until April. Anyway he
quoted about $250 in labor to replace it due to having to remove part of
the subframe to get to the gasket, so I'm thinking if it costs that much
to get into that area and I'm planning on keeping the car, I should
probably replace whatever else in the same area as long as he's in
there. Anyone have any suggestions on parts that would be accessible
that if it was your car, you'd go ahead and do?
Thanks in advance,
Phil
92 E36/M50
------------------------------
Date: Sun, 31 Oct 2004 20:43:26 -0500
From: "KMS - Brett Anderson" <[EMAIL PROTECTED]>
To: "UUC Digest" <[EMAIL PROTECTED]>
Subject: Re: <E36> oil leak question
Message-ID: <[EMAIL PROTECTED]>
Is the car tracked? If so, put a baffled pan in.
Regardless, may as well replace the oil pump while you're there, but there is
really no other work that is duplicated when doing this, so don't go overboard.
Brett Anderson
KMS
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of
> [EMAIL PROTECTED]
> Sent: Sunday, October 31, 2004 7:26 PM
> To: [EMAIL PROTECTED]
> Subject: [UUC] <E36> oil leak question
>
>
> Gruppe,
>
> Left my 92 325i (111K on the clock) with my independent tech this week
> to do some PM and he found a leak in the oil pan gasket. I'm thinking
> it's probably due to the 6 months it spent of mostly sitting in the
> driveway with minimal driving (about once every 2 or 3 wks) while I was
> in Australia on a temporary work assignment until April. Anyway he
> quoted about $250 in labor to replace it due to having to remove part of
> the subframe to get to the gasket, so I'm thinking if it costs that much
> to get into that area and I'm planning on keeping the car, I should
> probably replace whatever else in the same area as long as he's in
> there. Anyone have any suggestions on parts that would be accessible
> that if it was your car, you'd go ahead and do?
>
> Thanks in advance,
>
> Phil
> 92 E36/M50
>
>
> Search the ARCHIVES:http://www.mail-archive.com/[EMAIL PROTECTED]
>
>
> __________________________________________________________________________
> In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA.
>
> UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate
> Short Shifter - accept no substitutes!
> 908-874-9092 . http://www.uucmotorwerks.com
> ---
> Incoming mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004
>
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004
------------------------------
End of [bmwuucdigest] digest(5 messages)
**********
