The comprehensive DOHC engine swap thread.

[Danny]

I know 4 plugs into the intake boot and 3 should be into the valve cover breather/CCV system?

[Jand3rson]

Awesome. Got it all figured out, thanks Danny!

[dude8383]

I know 4 plugs into the intake boot and 3 should be into the valve cover breather/CCV system?

Since we're on this topic, the amount of oil build up on my motor around the valve cover is ridiculous. Do any of you guys have the same problem? It feels like a really flimsy piece...

[I*Do*Werke]

OK, So we are at a whopping 74 pages and any noob (me included) can attest to the difficulty of finding complete information in over 1,000 posts. Is there a certain page which has the gold mine of information? A parts list is all I need

[crazyman]

try to Google it and look for the posting from here or on bimmer forums. Before my computer crashed I got my list of all the parts and things needed off of bimmer forums. Let me know if this helps yeah.

[Chrisv006]

OK, So we are at a whopping 74 pages and any noob (me included) can attest to the difficulty of finding complete information in over 1,000 posts. Is there a certain page which has the gold mine of information? A parts list is all I need

The other sticky had about all the information I needed to pull it off...Its hard to have a catch-all list as everyone's swap is a little different and every motor might need different maintence parts. You just need to pick your motor/trans combo first and go from there.


Its really not a hard swap to do with a some research and realoem.com :) I used the diagrams off realoem a LOT durring reassembly.

[Jand3rson]

BMWFans.info is 1000x better than RealOEM. MUCH better, clearer pictures, much easier to navigate, and just overall easier to use.

[bloodshot-e30]

alright my ? for the day...
what is the difference for the VC breathers behind the vanos hump between an M50 and M52

i have to use my M52 VC since my M50 on got owned.... and im thinking i can cut the little tab off the M50 tube thingy and it will fit in the hole or is there another way i can do this?

[Kristo]

how do you have connected heating hoses with m50 swap?
when I look this, there are no space to do it. intake is too big.

can someone tell me what hoses to use or some pics how do you do it?

[drumad]

alright my ? for the day...
what is the difference for the VC breathers behind the vanos hump between an M50 and M52

i have to use my M52 VC since my M50 on got owned.... and im thinking i can cut the little tab off the M50 tube thingy and it will fit in the hole or is there another way i can do this?

Some folks used a 1" heater hose from the VC to the PCV. Clamped of course.

I'll be doing the same.

[DTM190]

sub'd. Going to need it in a few weeks.

Guessing I will be playing a few rounds of "where does this go" as well

[A_Whelan]

Quick question, is the M50 OBDI only?

[Wishno87]

Quick question, is the M50 OBDI only?

Yes.

[A_Whelan]

Someone was trying to sell me an M50 OBDII and said they would include the parts so I can swap it to OBDI... What could this mean (besides they might be lying about what it is)

[Wishno87]

Its probably an M52. Pics?