E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 10-12-2008, 09:50 AM   #1
02stu
Registered User
 
Join Date: Jun 2008
Location: Richmond, va
Posts: 66
My Ride: BMW M3 SMG
330i money shifted...ooops

A buddy of mine shifted into 2nd instead of 4rth in his 330 under full power at the redline. Now it is only firing on three cylinders, those are the only codes its throwing. It will start, kinda, and doesn't make any mechanical sounds. Any ideas, is it toast?
__________________
2002 m3 smg
02stu is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 10-12-2008, 10:53 AM   #2
BMW_Matt
Registered User
 
Join Date: Jul 2008
Location: Maryland
Posts: 13,066
My Ride: Has AWD
warped heads?
BMW_Matt is offline   Reply With Quote
Old 10-12-2008, 06:18 PM   #3
shady3one3
Banned
 
shady3one3's Avatar
 
Join Date: Jul 2005
Location: VA
Posts: 24,404
My Ride: gets replaced soon.
Send a message via AIM to shady3one3
Valves are bent.

A 6 cyl motor only has one head dude ^.
shady3one3 is offline   Reply With Quote
Old 10-12-2008, 06:24 PM   #4
djnekkon
Registered User
 
Join Date: Oct 2006
Location: Paterson, New Jersey / Orlando Florida
Posts: 15,922
My Ride: MB3ci Regensburg Bav
Quote:
Originally Posted by shady3one3 View Post
Valves are bent.

A 6 cyl motor only has one head dude ^.
Yeah, but bent valves would make some nasty noise tho...I wouln't even try to drive it like that. Replace the block. biggers pistons FTW.
djnekkon is offline   Reply With Quote
Old 10-12-2008, 06:37 PM   #5
mechanicalmadness
Registered User
 
Join Date: Dec 2007
Location: Buffalo
Posts: 45
My Ride: e46 323CI
Quote:
Originally Posted by shady3one3 View Post
Valves are bent.

A 6 cyl motor only has one head dude ^.
+1

High RPM valve float leads to bad bad things. Such as bent valves.

they would also not make any noise unless they were bent to the point of actually droping the valve it's self in the cylinder. it doesnt take much of a smack for a valve to loose it's sealing abillity.

on the other hand Ill take your buddy's motor off of him for free. lol
__________________
Born in the BG Raised all over. No wonder I'm confused.
mechanicalmadness is offline   Reply With Quote
Old 10-12-2008, 08:17 PM   #6
PEI330Ci
58mm of Bliss
 
PEI330Ci's Avatar
 
Join Date: Jul 2003
Location: PEI,Canada
Posts: 3,962
My Ride: 330i, 330Ci
Quote:
Originally Posted by djnekkon View Post
biggers pistons FTW.
Stock is 84mm...the largest you can run before you run into cylinder liner problems is 84.5mm.
PEI330Ci is offline   Reply With Quote
Old 10-12-2008, 08:29 PM   #7
Activ3
Registered User
 
Join Date: Feb 2005
Location: Orlando/Miami
Posts: 6,360
My Ride: gets DRIVEN.
Send a message via AIM to Activ3
Quote:
Originally Posted by pei330ci View Post
Stock is 84mm...the largest you can run before you run into cylinder liner problems is 84.5mm.
91mm stroke ftw?
__________________
-David www.e46nonm.com | My Videos
2000 328i - Custom Turbo tuned by AA

Activ3 is offline   Reply With Quote
Old 10-12-2008, 08:36 PM   #8
bimz101
Registered User
 
Join Date: Jul 2006
Location: new hampshire
Posts: 6
My Ride: 2000 323 ci
Send a message via AIM to bimz101
valves are bent, but not bad enough to notice any crazy noises if car will still run. Happens all the time with mis-shifts! i would just get a new head for it, and then you will have a nice new tight top end! probably around 2k to get it all done with labor at the right shop.
bimz101 is offline   Reply With Quote
Old 10-13-2008, 08:09 AM   #9
PEI330Ci
58mm of Bliss
 
PEI330Ci's Avatar
 
Join Date: Jul 2003
Location: PEI,Canada
Posts: 3,962
My Ride: 330i, 330Ci
Quote:
Originally Posted by Activ3 View Post
91mm stroke ftw?
How?

The bore centers are different between the M54 and S54.
PEI330Ci is offline   Reply With Quote
Old 10-13-2008, 11:12 AM   #10
4 door 330
Registered User
 
Join Date: Jun 2007
Location: Dallas
Posts: 227
My Ride: 2001 330i
Yes, I am the "buddy"...years of driving without incident and then...the money shift. Head is coming off as we speak and the consensus if one or more bent valves. The shop I used to work at has a valve and seat grinder, so it looks like ill get a three angle valve job while the car is under the knife, and hopefully have it back on the road this weekend with a little more power. If all is well I won't have to replace much more than that, but seals may be just as well since the car is at 104k. More to follow when it comes apart...
__________________

2001 330i 4dr - In the garage.
1986 335is - Sold.
1975 2002 - Sold.
1989 E30 M3 - Sold.
4 door 330 is offline   Reply With Quote
Old 10-13-2008, 03:49 PM   #11
Bimmer Dude Xi
Registered User
 
Join Date: Jul 2008
Location: Staten Island, NY
Posts: 2,353
My Ride: 03 325XI 07 ZX-6R
Send a message via AIM to Bimmer Dude Xi
Quote:
Originally Posted by 4 door 330 View Post
Yes, I am the "buddy"...years of driving without incident and then...the money shift. Head is coming off as we speak and the consensus if one or more bent valves. The shop I used to work at has a valve and seat grinder, so it looks like ill get a three angle valve job while the car is under the knife, and hopefully have it back on the road this weekend with a little more power. If all is well I won't have to replace much more than that, but seals may be just as well since the car is at 104k. More to follow when it comes apart...
Might as well rebuild the top end of your motor. Also get it cleaned as well.
__________________

|Dinan High Flow Air Box|Eibach Pro Kit|Koni Sport|UUC Strut Barbarian|UUC TSE3|UUC Underdrive Pulleys|18" VMR V710|

|BMC Race Air Filter|CRG Spectrum Levers| Galfer Steel Braided Brake Lines|Volar Motorsport Spiked Frame & Bar-end Sliders|
Bimmer Dude Xi is offline   Reply With Quote
Old 10-15-2008, 09:08 AM   #12
4 door 330
Registered User
 
Join Date: Jun 2007
Location: Dallas
Posts: 227
My Ride: 2001 330i
Well parts are in the mail...tope end rebuild, all new guides, seals, exhaust valves, valve job, timing chain, etc...

Parts ended up around $1000, and found a good spot online called AboveAllMotorwerks.com. They sell a ton of BMW OEM and other popular European brands stuff at good prices. They also have a great catalog, and you can search for parts with BMW part #'s and thye give you other options for purchase.

Update next week when its all done...
__________________

2001 330i 4dr - In the garage.
1986 335is - Sold.
1975 2002 - Sold.
1989 E30 M3 - Sold.
4 door 330 is offline   Reply With Quote
Old 10-17-2008, 10:47 PM   #13
mrshelley
Registered User
 
Join Date: May 2004
Location: Bethlehem, PA
Posts: 914
My Ride: 2004 330i
When you go around 8300 rpm (on a 330), you bend the valves. All you need to do is buy some new valves and do a valve job. If I've seen this once, I've seen it a hundred times.

One solution to reducing the chance of the "money shift," is to use a 100% stock shift linkage. Short shifters add to the probability of a missed shift. Talent behind the wheel will more than make up the difference in quick shifts.

Again, if I've seen it once, I've seen it a hundred times.
__________________
mrshelley is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Censor is OFF





All times are GMT -5. The time now is 07:07 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use