My mate is in the process of a 24v conversion using an m52b28.
All going well so far, engines in, prop sorted, wiring and ecu and exhausts are with danthe, however the breather system is a bit of a mess.
What have other people done with theirs?
The dipstick tube used doesn't have the same connections as the original and we were wondering if you actually have to run all the gubbins that is under the inlet manifold or if you can bin it and just go for a catch tank with a breather?
Ideas would be gratefully recieved.
Thanks
M52B28 inlet breather system, keep it/bin it?
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tomislav
- E30 Zone Squatter

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'Assumption is the mother of all f**k ups'
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leeparkes
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Do you have an M50 or M52 manifold on it?
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place..
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rich318i
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JUST TAKE IT TO A.M.W, SE15 1DRtomislav wrote:My mate is in the process of a 24v conversion using an m52b28.
All going well so far, engines in, prop sorted, wiring and ecu and exhausts are with danthe, however the breather system is a bit of a mess.
What have other people done with theirs?
The dipstick tube used doesn't have the same connections as the original and we were wondering if you actually have to run all the gubbins that is under the inlet manifold or if you can bin it and just go for a catch tank with a breather?
Ideas would be gratefully recieved.
Thanks
JOB DONE!!!
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DanThe
- E30 Zone Team Member

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If you are using the M50 manifold, bin the oil separator and run the crank case breather back to the intake elbow, same as the M50 setup.tomislav wrote:My mate is in the process of a 24v conversion using an m52b28.
All going well so far, engines in, prop sorted, wiring and ecu and exhausts are with danthe, however the breather system is a bit of a mess.
What have other people done with theirs?
The dipstick tube used doesn't have the same connections as the original and we were wondering if you actually have to run all the gubbins that is under the inlet manifold or if you can bin it and just go for a catch tank with a breather?
Ideas would be gratefully recieved.
Thanks
If you are keeping the M52 for a while just weld a small tube onto the dipstick tube to run the oil drain to from the oil separator.
Beemerlad did a writeup of the M50 manifold swap, check the stickies at the top of the page
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tomislav
- E30 Zone Squatter

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- Location: Faversham, Kent
DONT WANT TO TAKE IT TO A M W, but thanks anyway lol.rich318i wrote:JUST TAKE IT TO A.M.W, SE15 1DRtomislav wrote:My mate is in the process of a 24v conversion using an m52b28.
All going well so far, engines in, prop sorted, wiring and ecu and exhausts are with danthe, however the breather system is a bit of a mess.
What have other people done with theirs?
The dipstick tube used doesn't have the same connections as the original and we were wondering if you actually have to run all the gubbins that is under the inlet manifold or if you can bin it and just go for a catch tank with a breather?
Ideas would be gratefully recieved.
Thanks
JOB DONE!!!
And thanks again with the info dan, how is the exhaust, wiring and ecu coming on? (amongst your already hectic life?!?!?)
I'll go have a look at the sticky
'Assumption is the mother of all f**k ups'
