M42 radiator swap complete!

[NC325iC]

What is everyone doing to keep the ps pump off the drain plug? Mine might fit a sheet of paper btw them, I have another ps pump with a smaller pulley center on it but I donno if it works.

anyone?

I wonder if you could relocate the drain and cut off the old one. I originally would have just shortened it but the plug on this thing is strange

[Gruelius]

do the m42 radiators fit early model cars?

i was going to fit a e36 one from a mates totalled car but the series 1 bodies dont have that hook on the radiator support..

[Stephen]

bout to press order on a slew of parts from blunt tech to do this on my eta. im switching to the late model water pump and will probably just modifty the m20 hose like White325is did for the upper one. Any other things need replacing on an early car?

[Gruelius]

so what hose do we use? my early style lower rad hose wont even fit over the barb on the radiator lol

[Gruelius]

nvm, saw it was specified in the 2nd page, $70 from bmw aust lol

[Gruelius]

easy as to bleed... just use your mouth :P

then again ive probably got a pocket of air in there somewhere..

[einstein57]

A lower m20 hose is about 4 inches long and connects to a metal pipe

Early model lower hose. You just need to shorten it. I'll do a nice write up when I install one in the another early model chasis pretty soon.

[bmw325ijohn]

What did you do about the hose that Whent to the resivior under neither the intake? Did u replace with straight hose

[Sagaris]

I simply cut the "T" hose that connects to the original M20 late model reservoir down a few inches so that it has a straight shot towards the reservoir outlet on the M42 radiator.Then I used a 1" (memory may be failing me on that size) ID straight piece of hose (~6-9" length) off the M42 reservoir outlet which connects to the cut "T" hose. You need a 1" to 3/4" reducer (or whatever the sizes are) to connect the two hoses. This is because the OE hoses flare up to a larger diameter at the connection point and generic heater hose is a constant diameter all the way through.

[Sagaris]

easy as to bleed... just use your mouth :P

then again ive probably got a pocket of air in there somewhere..

That's what I ended up doing too. Thought I was the only one

[TimWis]

im in the process of doing it right now... having the problem of the drain cock hitting the p/s pump... SMH or does it sit higher?

[TimWis]

What is everyone doing to keep the ps pump off the drain plug? Mine might fit a sheet of paper btw them, I have another ps pump with a smaller pulley center on it but I donno if it works.

im about to grind it down... deciding.....

[2mAn]

so in order to do this into an early model all you need is to get the late model water pump, the metal pipe that goes acros the front of the motor? anything else?? also is the lower radiator hose just the stock m20 late model one?

[eight~deuce]

Can the stock m20 fan be used or do you need to use an electric fan? Is it a space issue?

Edit: nevermind, just saw that you can retain the stock clutch fan.

[Ginger_e30]

I just bought an m42 radiator for my 325i and I was wondering, how do I keep my transmission cooler that is attached to my radiator? The tubes are screwed into it and the m42 radiatior has one on the front of it with a clap box that the tube go to but I'm not sure exactly what to do with them. Do I cut them and clamp them in or do I just use the as is?