M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: SW-BIMMER on March 07, 2009, 11:22:50 AM

Title: Head bolts??
Post by: SW-BIMMER on March 07, 2009, 11:22:50 AM

Does any one know the torque pounds of the head bolts??

Title: Head bolts??
Post by: tumbler on March 07, 2009, 11:33:05 AM

Just did this on my '93 318is.

Step 1 - tighten all the head bolts to 22 ft/lbs
Step 2 - tighten them all 90*
Step 3 - tighten an additional 90*

Make sure to tighten them in the correct pattern. Just do a search on here. There is plenty of info.

Title: Head bolts??
Post by: RED IS 91 on March 07, 2009, 11:34:15 AM

You have to do a procedure

(http://i141.photobucket.com/albums/r73/bogeyman700/img021.jpg)

(http://i141.photobucket.com/albums/r73/bogeyman700/img022.jpg)

Title: Head bolts??
Post by: SW-BIMMER on March 07, 2009, 11:49:58 AM

Thanks!!
I have the book bout i cant find it

Title: Head bolts??
Post by: RED IS 91 on March 07, 2009, 03:00:44 PM

Quote from: SW-BIMMER;67859

Thanks!!
I have the book bout i cant find it

 
You need the E36 manual for the m42 motor.
(http://i141.photobucket.com/albums/r73/bogeyman700/silvere36.jpg)

Title: Head bolts??
Post by: SW-BIMMER on March 07, 2009, 04:28:57 PM

yea that the one i have

Title: Head bolts??
Post by: Selfish on March 09, 2009, 09:58:12 PM

one question on the head removal-note: Did you have to remove the camshafts from their seats? in other words: Can the head bolts be removed (and re-positioned, and torqued) without removing the camshafts?
Also, what´s good at removing all the grime and dust and oil that builds up on these areas (cylinder head, valves, etc)?
I haven´t done this before.

Title: Head bolts??
Post by: nomad on March 09, 2009, 10:59:50 PM

you can leave the cams in but you need the special Torx socket that reaches down past them to the bolts...

Title: Head bolts??
Post by: SW-BIMMER on March 11, 2009, 02:12:26 PM

Well i took mine off i just clean them good n i just place some engine assembly lube on them

Title: Head bolts??
Post by: Selfish on March 11, 2009, 07:17:38 PM

yeah, I have that torx socket. I was concerned ´cause I read somewhere online about how hard it is to remove the cams by oneself, and how easily they break on removal if not done properly, making it almost mandatory a 2-person task. I try to read a lot about something that interests me, but also I tend not to believe everything I read, at least not blindly. So, how was your experience on this?

Title: Head bolts??
Post by: nomad on March 11, 2009, 09:20:05 PM

On the M20, I think so, on the M42, no - if you just back each cam bearing nut off 1/4 at a time then you'll be superfine.