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Engine and Drivetrain

Information about modifications and repairs to the Engine and Drivetrain on your BMW 2002 and Neue Klasse car. Make your car go fast, or just go. Submit an Article if you have something to share.

44 articles in this category

Transmission Oil Change

Transmission Oil Change

Pretty straightforward but figured I'd take a few photos and post. More good info here.   This is for a 1976 BMW 2002 with manual 4-speed transmission.     You will need 2 Quarts Red Line MTL A Fluid Quart Pump 17mm Hex Driver Tools to get a plug removed that is probably pretty stuck. Free All Breaker Bar Pipe to turn a ratchet into a breaker bar.           Y

Esteban

Esteban

Removing and Rebuilding the Pedal Box

Removing and Rebuilding the Pedal Box

Original Author: Paul Wegweiser Removing and Rebuilding the Pedal Box Parts Needed: Pedal Box rebuild kit, consisting of: 35 41 1 108 237 Throttle bushings x 2 35 41 1 108 676 Throttle lever spring 35 41 4 440 122 Gas pedal roller 35 31 4 640 116 Clutch pedal to Master bushings x 2 35 21 4 640 103 Clutch pedal pivot bushing 35 21 4 045 707 Brake pedal pivot bushing 35 31 1 104 531 Clutch pedal return spring 35 21 1 102 383 Brake pedal Return spring 35 2

Collinster742002

Collinster742002

Swap of a Later Transmission into an Early Car

Swap of a Later Transmission into an Early Car

This is the story of the swap of a later transmission and front part of the propshaft into a 1967 car, to replace the broken and bent ones resulting from an exploded flexdisk/giubo. The problems I was facing at this point included: -shifter platform destroyed (but bent back into shape) -front part of the propshaft bent and flange distorted -transmission flange distorted -mounting point for shift platform broken off the transmission -shift rod into the transmission w

tups

tups

Motor drop and plant

Motor drop and plant

Motor drop Take lots of pictures, everything, every angle. Disconnect everything, wires, hoses, distributor cap. You may want to remove the front grills and radiator but I don't think that was necessary. Leave the rear wheels on the ground, well chocked. Raise the front end. Front of car secure on jack stands. Remove the front wheels. Remove the bracket on the strut that holds the rigid brake lines Remove the brake calipers and hang them from something with something. Get the car high e

BillWilliams

BillWilliams

Valve Adjustment for BMW M10 Motor

Valve Adjustment for BMW M10 Motor

Article 1: Original Author: Sam Schultz Valve Adjustment for BMW 1602-2002 M10 Motor The process of adjusting the valves needs to be done at every major service. This service happens every 15,000 miles or so. Failure to properly adjust the valves will cause increased wear and rob your engine of power. Tools: 10-mm wrench 10-mm socket (optional) 0.008" feeler gauge Small allen wrench or piece of bent coathanger Parts tray Parts: Val

Collinster742002

Collinster742002

Megasquirt EFI (and EDIS) for the BMW 2002 - Part 1

Megasquirt EFI (and EDIS) for the BMW 2002 - Part 1

While there is quite a lot of information on EFI conversions for our cars (some of which I will directly reference here), my goal with this article is to help anyone embarking on this type of project with a modular approach, so that one may go at his own pace, and deviate for personal preferences at any point along the way.  My own project has been done on a 1975 base 2002 using Megasquirt 2, Ford EDIS, and B&G firmware, so this will be the basis referenced here.  All standard disclaimers ap

AustrianVespaGuy

AustrianVespaGuy

Strongest 2002 Limited Slip Differential Build

Strongest 2002 Limited Slip Differential Build

How To Build the Strongest Small-case Limited-slip Differential For Your 2002. AKA: Late E36 318i/ti Pumpkin into an E21 Open 6-bolt Differential Case. By Andrew Adams of Ireland Engineering Email: a n d r e w a d a m s @ I e m o t o r s p o r t . c o m Website: bmw2002.com or iemotorsport.com Disclaimer: This is not a beginner project, nor is it meant to be a complete diff-bible, and as such, I (or IE) are not responsible for ANY of your screw-ups. There are some topics which are abbreviat

AceAndrew

AceAndrew

FINALLY, EFI Throttle Linkage!

FINALLY, EFI Throttle Linkage!

This has taken me a full DECADE of trial-and-error-and-refinement but I have FINALLY cracked this awful nut: how to properly make a good throttle linkage for an EFI conversion!  Note that you'll still need to tailor this to your particular manifold/throttle body/mounting points/etc., but I PROMISE this will get you 90% of the way there no matter what setup you are running and I also GUARANTEE that's it's better than what you've already managed to cobble together!  So let's get started! As always

AustrianVespaGuy

AustrianVespaGuy

Engine Identification

Engine Identification

The majority of ‘02’s retain their original factory engines. Each car’s original factory engine was stamped with an engine number that matched that car’s VIN. More specifically, the engine’s block was stamped with this engine number or VIN. Thus, even when the VIN and engine number match, you still might want to do some sleuthing to see, for instance, if the engine’s head might be original to the car. One cannot simply assume that an original block will be accompanied by an original head.  

Conserv

Conserv

LSD Half Shafts - an Idiot's Guide

LSD Half Shafts - an Idiot's Guide

Giving a nod to the 70’s Volkswagen repair manual that spawned countless others, my post is a distillation of several other posts on how to construct half shafts that work with the installation of an e21 LSD in your ’02.  In all cases, the e21 parts referenced are the “later” e21 parts. In my case, I believe that they came from a 1980 320is.  Other posts and reference material cite differences in dimensions of “early” half shafts, CV joint bolts and differential widths. See the end of this artic

duckdudess

duckdudess

Five Speed Conversion

Five Speed Conversion

Original Authors: Trent Tilton and Rob Shisler Transmission seals kit Shifter rebuild kit New six- or eight-bolt guibo with new nuts and bolts Center bearing Exhaust flex-sealing ring Clutch kit (including e21 323 throwout bearing) New copper exhaust downpipe nuts (3 of them) Downpipe gasket Slave cylinder Slave cylinder extension hose New set of flywheel/pressure plate bolts We are working on getting part numbers f

Collinster742002

Collinster742002

Installing Exhaust Manifold or Header Studs

Installing Exhaust Manifold or Header Studs

Written by John Aho Monday, 05 September 2005 Installing Exhaust Manifold or Header Studs By John Aho   Studs are designed to be fitted only "finger-tight" into their threaded hole in a casting. However, a locking type of nut (PTN, or prevailing torque nut) is often specified to go on the stud. These two facts present an inherent dilemma. The grip of the PTN on the stud can easily turn the stud when you don't want it to (how often have you removed an exhaust manifold nut and

Collinster742002

Collinster742002

BMW 2002 Differentials Guide

BMW 2002 Differentials Guide

Original Author: Jeff Ireland Differential Types - 2002 and 320i: Early 1600's and 2002's came with a long neck differential. These were phased out in early 1969. They were either 4.11:1 (1600) or 3.64:1 (2002). They are very rugged (heavy) and easy to come by, but not rebuildable due to the lack of available replacement parts. If you want to switch to the later short-neck differential, you must replace the entire subframe and rear suspension. This sounds tough but is actually fairly e

Collinster742002

Collinster742002

How to Replace a Differential

How to Replace a Differential

Had not seen full “how to” for diff swap, so here you go. Simple job. Well, simple on a car that gets its diff swapped a lot. No promises on a diff that has been in a car for 40 years… What you need: A diff Two 17mm combo wrenches 17mm socket 19mm combo wrench 19mm socket 17mm socket 6mm hex socket (for 2002 cv joints) 8mm hex socket (if you have 320 cv joints) Jack stands Jack First, get the car up on jackstands. Remove muffler Lock e-brake and put car in gear Loosen the 4 nut

M3M3M3

M3M3M3

2002 carby to ITB MegaSquirt Injection

2002 carby to ITB MegaSquirt Injection

Original author: johnhup I have decided to go a different route then most and install two indivual throttle bodies (ITBs) instead of a single throttle body and plenum type system. So far everything is working great based on Speed Density (Maifold pressure reading) which many thought would not be possible. I also have a more agressive cam with no overlap which probably makes the situation easier (278 duration, .288" lift). More information to come as I install EDIS spark control. Until then

Collinster742002

Collinster742002

Tuning Megasquirt EFI and Spark - Part 2

Tuning Megasquirt EFI and Spark - Part 2

This is the continuation of the Megasquirt/EDIS installation article found here (which I apparently ran out of article room in): This article will focus specifically on how to tune an EFI installation on your 2002.  It will focus on Megasquirt as the example (since that is what I installed on my car and thus am most familiar with), but the general process is still applicable to other type of EFI setups. Note: Before you ask, no, I will NOT share my actual *.msq files.  That's a great

AustrianVespaGuy

AustrianVespaGuy

Replacing Radiator In 27 Minutes

Replacing Radiator In 27 Minutes

On the way to the SoCal Vintage BMW Meet the new to me car was overheating when reaching highway speeds. The drive was a bit painful with multiple stops to let the car cool and took forever since i had to keep the car at about 80km/h. We didn't get to Santa Barbara until after 1am. Early morning and slow drive to Van Nuys followed. The plan for the show was to set up the tents, put the cars in place, and then find a suitable radiator. By the time we made it to Woodley Park, Ray from Elefant Su

steve k.

steve k.

Gear Ratio RPM Speed Guide

Gear Ratio RPM Speed Guide

Using this Google spreadsheet developed by Grice Mulligan, AKA williamggruff, users and abusers alike can investigate the outcomes of matching various BMW  transmissions and differentials, and calculate a variety of RPM and speed values that result.   Inputs are simple:  Tire circumference and Redline RPM.  Tire circumference can be estimated using the link provided. Redline RPM can be a target RPM, such as a preferred RPM at a cruising speed.       BMW transmission

Collinster742002

Collinster742002

Mechanical Fuel Pump FAQ

Mechanical Fuel Pump FAQ

There are basically two different types of mechanical fuel pumps that were used on '02s. The '02 fuel pumps have 8mm inlet with 6mm outlet hose fittings, and one that has 8mm in and out hose fittings that is a performance upgrade...... #13 31 1 252 506 Pump is defined by its lever type operating mechanism that is below the mounting surface and the 8mm inlet and 6mm outlet hose fittings. This pump was used on single barrel and 2002 TI's before mid '72. #13 31 1 265 192 The operating mec

tjones02

tjones02

Converting to 318i Electronic Fuel Injection

Converting to 318i Electronic Fuel Injection

Original Author: Mike Kubani Mike's 318i Electronic Fuel Injection setup including his custom cold-air box Introduction: This conversion is not recommended for anyone who is not mechanically knowledgeable and ready for a challenge. There are many steps involved and several places where fabrication skills will be required. If you feel that you are not ready for this, it would be best to leave the conversion to a professional. When considering this conversion, it is advisable to do signi

Collinster742002

Collinster742002

Weber 32/36 Carburetor & Stock Air Filter Integration

Weber 32/36 Carburetor & Stock Air Filter Integration

I start by saying always liked "stock look” under the hood and never cared for appearance of Weber 32/36 air filter on my 76 ’02. On the technical side, Weber set up is such that air drawn into intake manifold is always warm/hot (from engine compartment surroundings). So it is opposite of air induction system was originally designed for base model. On original setup for most parts selection of warm and/ or cold air determined by air regulator housing. The original system always let outside ambie

Buckeye

Buckeye

Shifter Rebuild

Shifter Rebuild

Original Author: Steve Kupper If your shifter is a bit looser then you'd like, and you want it to feel like new again (do you know how it felt when it was new?) here are a few simple and very inexpensive things you can do to get the like-new effect. This article is based on a late 2002 style shifter. Please look at what yours looks like before ordering parts.   Part list: Few more parts needed (don't have them yet): 8 Spacer ring 25 11 1 220 199 9 Circlip 25 11 1 220 379 10 O

Collinster742002

Collinster742002

Solex 36 - 40 PDSI  Basic information and tuning

Solex 36 - 40 PDSI Basic information and tuning

Some basic information about the Solex 36 - 40 PDSI or PDSIT. Jets, parts and tuning. Most of the parts are no longer available, but the rebuild kits can be found all over ebay plus many 2002 parts vendors. Solex 36 - 40 PDSI and PDSIT were available on the early 1600, 1800 and 2002 models. PDSIT is an automatic (water) choke version and is hard to find. The venturi and jet differences are listed bellow. read all my Neue Klasse pages in my photobucket - some maybe helpful...

c.d.iesel

c.d.iesel

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