Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

Reply
 
Thread Tools Display Modes
  #1  
Old 03-19-2011, 01:34 PM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
bmw e30 m42 engine build and ballance

recently torn apart my m42 engine due to profile gasket failing and decided to take the oppertunity to re build with new rings, bearings, gaskets, seals etc. also decided to have the crank balanced and single mass flywheel lightened, which will be done this week hopefully. with pictures to follow.

so far recently just had cylinder head skimmed, valves re seated, fitted new valve stem oil seals and chemicaly cleaned.

as for the block iv checked all the oil clearances on the crank and rod bearings with plastigauge and were all within the tollerances except slightly more wear on the crank bearing nearest the timing chain.

cross hatch could still be clearly seen on the cylinder walls which tells me their has been no problems with over heating or excessive wear.

next week ill be getting the crank balanced along with rods pistons, flywheel and clutch.
having the clutch lightened.
setting piston ring end gaps and assembling bottom end and fitting pistons.

HAS ANYBODY ANY SUGGESTIONS ON HOW MUCH WEIGHT TO SHAVE OF THE FLYWHEEL?
DONT WANT IT STALLING ON GEAR CHANGES BUT WANT THE ENGINE TO REV EVEN MORE FREELY. NOT THAT IT REALLY NEEDS IT BUT WOULD REGRET NOT DOING IT WHILEST THE ENGINE IS OUT.
Attached Thumbnails
Click image for larger version

Name:	IMG00156-20110312-2058.jpg
Views:	239
Size:	131.6 KB
ID:	271045   Click image for larger version

Name:	IMG00165-20110314-1746.jpg
Views:	219
Size:	116.6 KB
ID:	271046   Click image for larger version

Name:	IMG00182-20110319-1543.jpg
Views:	251
Size:	122.3 KB
ID:	271047   Click image for larger version

Name:	IMG00178-20110317-1312.jpg
Views:	260
Size:	135.9 KB
ID:	271048  

Last edited by turbo86; 03-20-2011 at 12:53 PM.
Reply With Quote
Ads by Google
  #2  
Old 03-19-2011, 01:47 PM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
Engine ballancing

Has anybody had any experiance in engine balancing and what kind of gains you got in return?
Attached Thumbnails
Click image for larger version

Name:	IMG00145-20110310-1246.jpg
Views:	301
Size:	173.6 KB
ID:	271055   Click image for larger version

Name:	IMG00176-20110317-1312.jpg
Views:	201
Size:	127.3 KB
ID:	271056   Click image for larger version

Name:	IMG00144-20110309-1044.jpg
Views:	219
Size:	170.7 KB
ID:	271057  

Last edited by turbo86; 03-20-2011 at 12:53 PM.
Reply With Quote
  #3  
Old 03-22-2011, 02:34 PM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
new parts

crank, pistons, rods, flywheel and pressure plate has all been dropped of at machinest today for balancing and the lighting of the flywheel.

today set the end gaps on all piston rings.
painted some odd bits up.
Attached Thumbnails
Click image for larger version

Name:	IMG00186-20110322-1309.jpg
Views:	189
Size:	128.9 KB
ID:	271623   Click image for larger version

Name:	IMG00184-20110322-1306.jpg
Views:	224
Size:	125.1 KB
ID:	271624   Click image for larger version

Name:	IMG00191-20110322-1321.jpg
Views:	174
Size:	99.2 KB
ID:	271625  
Reply With Quote
  #4  
Old 03-22-2011, 02:41 PM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
m44 cam gears on m42 camshafts

sourced some m44 cam gears for free that had to be modified to fit m42 camshafts.
basically had to drill a 4mm blind hole in the exhaust cam and tap inn the pin for the cam sensor.

the old cams were seriously worn and needed replacing.

the hole for the sensor pin obviously has to be in the same location as it was on the m42
cam gear
I think from what i can see when the pin passes the sensor that is the tdc of cylinder 1.
so its very important its located precisley.
Attached Thumbnails
Click image for larger version

Name:	IMG00190-20110322-1320.jpg
Views:	142
Size:	112.6 KB
ID:	271626   Click image for larger version

Name:	IMG00192-20110322-1436.jpg
Views:	121
Size:	134.8 KB
ID:	271627   Click image for larger version

Name:	IMG00194-20110322-1439.jpg
Views:	114
Size:	132.9 KB
ID:	271628  
Reply With Quote
  #5  
Old 03-22-2011, 07:53 PM
downhiller's Avatar
downhiller downhiller is offline
livin large
Location: des moines
 
Join Date: Oct 2007
Posts: 6,967
Mein Auto: 2012 hypermotard 796
There wont be much of a hp or torque gain from a balance. But the engine will run smoother which less vibration smoother curves and smaller balancer. You can shave about 5-7lbs i believe without any major issues

Sent from my Garminfone using Bimmer App
__________________
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming
Reply With Quote
  #6  
Old 03-24-2011, 02:20 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
thats kind off what i expected anyways, i know it will also improve on reliability also with having less stresses on internal parts.

regards the flywheel i kind of left it with them. told them i dont want it stalling between gear changes and dont want any clutch chatter. they have done a few m42 flywheels before so they know how much to take out. i hope!
Reply With Quote
  #7  
Old 03-24-2011, 02:29 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
m42 oil pressure gauge adaptor

i recently bought the oil pressure gauge adaptor of ebay.
i found that it doesnt realy fit the way its supposed to so had to modify it slightly.
the problem was when you screew the adaptor into the filter housing and then screew the oil pressure sensor into the adaptor it touches the engine mount and the conector plug cant be attached.
so i made a 90 deg elbow with m12 thread so i can angle the sensor away from the engine mount.

here is how it looks.

also made a start on electric fan conversion.

does anybodey know what sensor i can use for the fan switch? their is a brass plug on the drivers side of the radiator, can that be used for the sensor?
Attached Thumbnails
Click image for larger version

Name:	IMG00199-20110323-1453.jpg
Views:	230
Size:	150.3 KB
ID:	271853   Click image for larger version

Name:	IMG00198-20110323-1453.jpg
Views:	204
Size:	139.9 KB
ID:	271854   Click image for larger version

Name:	IMG00196-20110323-1328.jpg
Views:	189
Size:	126.5 KB
ID:	271855  
Reply With Quote
  #8  
Old 03-24-2011, 09:25 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
bad profile gasket new and old

nasty!!!
Attached Thumbnails
Click image for larger version

Name:	IMG00188-20110322-1311.jpg
Views:	244
Size:	88.7 KB
ID:	271875  
Reply With Quote
  #9  
Old 03-26-2011, 11:43 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
bord of waiting

still waiting for them to finish with my crank and flyweel.

pickin up monday now hopefully.

was hoping to have it built for weekend
Reply With Quote
  #10  
Old 03-26-2011, 11:58 AM
downhiller's Avatar
downhiller downhiller is offline
livin large
Location: des moines
 
Join Date: Oct 2007
Posts: 6,967
Mein Auto: 2012 hypermotard 796
on the flywheel you can remove 2/3s the weight and still be ok. if you also threw in lighter rods and pistons, you can shave more weight. on the electric fan, theres 2 sensors on the radiator, ones for the ac the other goes to the ecu. use the sensor for the ac and put in a lower temp sensor
__________________
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming
Reply With Quote
  #11  
Old 04-01-2011, 02:57 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
radiator thermostat

cheers for that.
i just need to find a thermostat with the right size thread and switch?
you got any part numbers? would be much appreciated.
Reply With Quote
  #12  
Old 04-01-2011, 05:24 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
bmw m42 lightened flywheel

finaly picked the bits up on tuesday afternoon. my brother came along to help build the engine and drop it back inn the car, was up at the garage gone 10:00 that night and back up in the morning till 11:00 that night. had a few problems that i couldnt just leave otherwise would of had it done.

anyways this is the lightened flywheel and original flywheel.

saved around 1.5kg
i chose to have the holes drilled and shamfered for being the best way to lighten without loosing any strength.
yet to see how its affected the performance

you can probably see from the other picturs the lightend wrist pins ( shamfers drilled into the sides of pins)
also some material removed of the base of one rod to match the the weight in all rods.
this one must of been fractionaly heavyer.
Attached Thumbnails
Click image for larger version

Name:	IMG00224-20110329-1623.jpg
Views:	218
Size:	225.4 KB
ID:	272715   Click image for larger version

Name:	IMG00223-20110329-1623.jpg
Views:	197
Size:	189.0 KB
ID:	272716   Click image for larger version

Name:	IMG00226-20110329-1633.jpg
Views:	186
Size:	89.7 KB
ID:	272717   Click image for larger version

Name:	IMG00225-20110329-1633.jpg
Views:	182
Size:	101.2 KB
ID:	272725  

Last edited by turbo86; 04-01-2011 at 07:46 AM.
Reply With Quote
  #13  
Old 04-01-2011, 05:35 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
m42 build

some more pictures of lifting the engine into place and head being torqued up.
all went preety smoothly.
Attached Thumbnails
Click image for larger version

Name:	IMG00228-20110330-1007.jpg
Views:	237
Size:	168.2 KB
ID:	272726   Click image for larger version

Name:	IMG00230-20110330-1009.jpg
Views:	212
Size:	146.0 KB
ID:	272727   Click image for larger version

Name:	IMG00233-20110330-1135.jpg
Views:	225
Size:	145.8 KB
ID:	272728   Click image for larger version

Name:	IMG00234-20110330-1135.jpg
Views:	207
Size:	120.7 KB
ID:	272729   Click image for larger version

Name:	IMG00235-20110330-1136.jpg
Views:	234
Size:	142.8 KB
ID:	272730  

Click image for larger version

Name:	IMG00237-20110330-1347.jpg
Views:	220
Size:	158.2 KB
ID:	272731   Click image for larger version

Name:	IMG00239-20110330-1348.jpg
Views:	228
Size:	139.2 KB
ID:	272732   Click image for larger version

Name:	IMG00241-20110330-1520.jpg
Views:	277
Size:	156.9 KB
ID:	272733  

Last edited by turbo86; 04-01-2011 at 05:58 AM.
Reply With Quote
  #14  
Old 04-01-2011, 07:51 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
im just left with fitting the radiator, pullys, belts and bleeding the coolant system.

i have started the engine and sounds sweet as a nut! i couldnt run for too long as their was no coolant in the engine. but all seems fine. I wont even be able to realy test it till the rings have beeded inn and iv done 200 mile oil change.

next on the list of modifications will be:
ecu chip,
oil catch tank,
braking system. was looking at brembo brakes for some fiats and having some mounts made, just need to find the right size callipers.

does anybody have any suggestions on which chip to use? theirs just so many from 25 too 90 on ebay.

Last edited by turbo86; 04-03-2011 at 01:46 AM.
Reply With Quote
  #15  
Old 04-01-2011, 03:29 PM
downhiller's Avatar
downhiller downhiller is offline
livin large
Location: des moines
 
Join Date: Oct 2007
Posts: 6,967
Mein Auto: 2012 hypermotard 796
Quote:
Originally Posted by turbo86 View Post
cheers for that.
i just need to find a thermostat with the right size thread and switch?
you got any part numbers? would be much appreciated.
bavauto.com has some sensors that just plug in for the aux fan. there should be plenty of write ups on a fan depletion on the 318. dont hear too much on them, mainly on the 325s
__________________
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming
Reply With Quote
  #16  
Old 04-01-2011, 06:30 PM
fcsteve's Avatar
fcsteve fcsteve is offline
610EUROs
Location: pennsylvania
 
Join Date: Jan 2008
Posts: 6,950
Mein Auto: 90' 24v, 89' 325is
are you actually weighing each part you shave weight off of or just machining and grinding parts willy nilly so its all unbalanced and blows up ?
__________________
if you want to lead the orchestra, you must turn your back on the crowd

build: http://www.bimmerfest.com/forums/sho...d.php?t=382667
Reply With Quote
  #17  
Old 04-02-2011, 03:30 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
m42 engine ballance

im not grinding and shaving anything! im merley showing you pictures of the work i have had done.
the crank, rods, pistons, pressure plate and flywheel has all be proffesionally balanced and lightened by quasar engineers specialist engine builders based in stockport.
Reply With Quote
  #18  
Old 04-02-2011, 03:46 PM
First time's Avatar
First time First time is offline
INSANELY UNPREDICTABLE!
Location: in my house
 
Join Date: May 2010
Posts: 536
Mein Auto: 1984 318i
Quote:
Originally Posted by turbo86 View Post
im not grinding and shaving anything! im merley showing you pictures of the work i have had done.
the crank, rods, pistons, pressure plate and flywheel has all be proffesionally balanced and lightened by quasar engineers specialist engine builders based in stockport.
Quote:
Originally Posted by fcsteve View Post
are you actually weighing each part you shave weight off of or just machining and grinding parts willy nilly so its all unbalanced and blows up ?
Now who would just start hacking away at their rotating assembly for no reason. LOL

That makes ZERO sense.

BTW the engine would not blow up, something will get broken, nothing will blow up.

Last edited by First time; 04-02-2011 at 03:48 PM.
Reply With Quote
  #19  
Old 04-02-2011, 05:48 PM
fcsteve's Avatar
fcsteve fcsteve is offline
610EUROs
Location: pennsylvania
 
Join Date: Jan 2008
Posts: 6,950
Mein Auto: 90' 24v, 89' 325is
Quote:
Originally Posted by First time View Post
Now who would just start hacking away at their rotating assembly for no reason. LOL

That makes ZERO sense.

BTW the engine would not blow up, something will get broken, nothing will blow up.
you must have never viewed the ultimate dsm build thread. the kid was hack sawing critical parts, hand filing grooves into the head and a ton of crazy bad crap. never assume people arent completely screweing something up.

the bearings would likely go out prematurely from bad vibrations. .. no engine ever ACTUALLY blows up. but you still call a bad engine a blown engine dont you ?
__________________
if you want to lead the orchestra, you must turn your back on the crowd

build: http://www.bimmerfest.com/forums/sho...d.php?t=382667

Last edited by fcsteve; 04-02-2011 at 05:49 PM.
Reply With Quote
  #20  
Old 04-02-2011, 06:14 PM
downhiller's Avatar
downhiller downhiller is offline
livin large
Location: des moines
 
Join Date: Oct 2007
Posts: 6,967
Mein Auto: 2012 hypermotard 796
dont be so sure on blownin an engine

__________________
I know a lot about cars. I can look at a car's headlights and tell you exactly which way it's coming
Reply With Quote
  #21  
Old 04-02-2011, 06:18 PM
fcsteve's Avatar
fcsteve fcsteve is offline
610EUROs
Location: pennsylvania
 
Join Date: Jan 2008
Posts: 6,950
Mein Auto: 90' 24v, 89' 325is
ive seen a different vid of a tractor pull engine blowing up as well. driver was severely injured in the vid i saw tho.
__________________
if you want to lead the orchestra, you must turn your back on the crowd

build: http://www.bimmerfest.com/forums/sho...d.php?t=382667
Reply With Quote
  #22  
Old 04-03-2011, 01:38 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
crazy!

Quote:
Originally Posted by downhiller View Post
dont be so sure on blownin an engine


thats some crazy video. see the size of them turbos. can imagine him thinking lets just stick two on their for a laf.
Reply With Quote
  #23  
Old 04-03-2011, 01:43 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
had abit of a scare when i started her up last night. i could here a knocking when the engine was running.
bearings have gone in the alternator. thank f$%k its only the alternator.

although i know i torqued everythin up to spec i still get worried. lol
Reply With Quote
  #24  
Old 04-03-2011, 12:12 PM
First time's Avatar
First time First time is offline
INSANELY UNPREDICTABLE!
Location: in my house
 
Join Date: May 2010
Posts: 536
Mein Auto: 1984 318i
Wow cant believe so idiot would just hack saw crucial pieces of his crank. That blows my mind. He must have used wikipedia as his build guide lol.

I have never had a "blown" engine. I put them together correctly. Lol. Blown headgaskets a few. But thats a different story. I havent/will not refer a engine as blown up. It just doesnt make sense, well to me anyway. I will say that it is broken because thats what it is.


Sent from me, who else?
Reply With Quote
  #25  
Old 04-04-2011, 08:43 AM
turbo86 turbo86 is offline
hammer please
Location: derbyshire
 
Join Date: Mar 2011
Posts: 50
Mein Auto: bmw e30 318is
finishing up

just awaiting replacment alternator that hopefully im going to win on ebay tonight

started sanding the inlet manifold to take out the casting pours and polish up. already looks like an improvment.
Attached Thumbnails
Click image for larger version

Name:	IMG00254-20110404-1520.jpg
Views:	256
Size:	164.5 KB
ID:	273091   Click image for larger version

Name:	IMG00255-20110404-1521.jpg
Views:	339
Size:	153.6 KB
ID:	273092  
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 06:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms