M30 5spd

[Lurker27]

Both sets had wear when I checked them out @315k. It's cheap, do both, IMO.

[Jean]

This one is at 1/2 the mileage, I've read that these bottom ends usually don't wear out as much as the 4cyl models so maybe I'll just leave it alone.

I did order a new water pump/t-stat and about to order a new clutch kit. Are the e34 535i clutch kits the same as 635csi and e28 535i?

[yert315]

where are you going to get the clutch from? I have the 260 trans and I'm using an m5 clutch if that helps

[Jean]

From autohausaz, m5 clutch will be overkill (and will require m5 flywheel?) if the engine isn't boosted no?

[RickSloan]

no need for an m5 pressure plate with the m5 clutch, the m5 clutch kit relly isnt muc more money at all and im super happy with it

[Jean]

no need for an m5 pressure plate with the m5 clutch, the m5 clutch kit relly isnt muc more money at all and im super happy with it

$450 vs. $289

[RickSloan]

payed $320 for mine, pressure plate, clutch disc, and TOB

[Jean]

I am looking at autohausaz, got a link?

[Jean]

I used autohausaz and picked a 91 735i and it shows 11241258428 for a set of bearings, but according to realoem these are not for E32/E34.

Can someone confirm this?

http://www.realoem.com/bmw/showparts.do?model=HD13&mospid=47408&btnr=11_1170&hg=11&fg=20

What is the deal with RED and BLUE bearings? Do I have to get 6 of each?

[Jean]

Sent autohausaz an email to confirm if the part number was correct:

"Thank you for submitting your part inquiry with Autohaus Arizona. Part
number 11 24 1 258 428 / 6 would be the correct standard main bearing
set for the 1988 through 1992 BMW M30 engines used in the E32 735i and
E34 535i. This is a complete bearing set for the six cylinder engines
and is manufactured by Glyco, which is a division of Federal-Mogul."

[yert315]

From autohausaz, m5 clutch will be overkill (and will require m5 flywheel?) if the engine isn't boosted no?

You do not need an m5 flywheel to run the m5 clutch. I am running an e28 "light" flywheel and it lines up just fine. I did go the cheap route however - grip-force. I bought the e28 m5 stage 2 clutch kit, which came out to about $300 shipped. I have used these guys in a previous e30 I had and had no problems with them, other than a bad TOB that I replaced with an oem unit. The m5 kit came with a sachs pressure plate if that matters.

Just throwing it out there as an option.

[Jean]

Made some progress today, tore into the bottom end and cleaned up the pistons. Next week new piston rings/bearings are getting installed along with the rest of it if time permits.

Old timing rails after 160k miles:





Original rod bearings didn't show much wear







old vs new



can see the wear here





Chains didn't appear to be stretched



rods and pistons removed and marked



before cleaning




after some cleaning, the oil ring groove was a bitch to clean





close up of original piston




No wear noticed on the crank





cyl. walls



wtfbbq



That's it for today.

[Pinepig]

I never saw you break out that camera, how did I miss that?

[Jean]

I never saw you break out that camera, how did I miss that?

You probably was blinded again from welding your turbo manifold again

Rings are coming from the Deutschland... won't be in before this saturday :(

[Jean]

I ended up ordering std. rod and main bearings since everything is apart anyway. Tips on replacing rod/main bearings such as torque #s and order of things?

I only have an e30/e36 bentley manuals, I need to pick up an e34 (535i) manual I guess.