clutch fan

[trackjunkie21]

Everywhere I read it says I can use the m20 clutch fan on an m50 swap with an m42 radiator, but noone knows for sure about the m42 fan, the clutch is the same between the two, but the m42 has a slightly smaller fan, you guys think it should work?

[nrubenstein]

If the fan is smaller, it should work.

I highly recommend the diesel euro fan, though. It's got a tough ring around the blades on the outside, which means that iy isn't going to come apart and shred stuff if you guess wrong about clearance.

[trackjunkie21]

If the fan is smaller, it should work.

I highly recommend the diesel euro fan, though. It's got a tough ring around the blades on the outside, which means that iy isn't going to come apart and shred stuff if you guess wrong about clearance.

would you happen to have a P/n? it's from an e30 correct?

[blackhawkimpact]

The m42 one is to thick. The m20 one is slimmer.

[cabin]

I was not aware that any clutch fan setup worked on an M42 radiator??? I thought the placement of the expansion tank gets in the way of having a clutch fan.

If this is possible, I would like to know the details.

[752dbl02]

Would an m20 clutch fan work with either an m20 or m50 radiator? I'm not quite sure which one I've got.

[Wanganstyle]

m20 = m50 radiator :) late model e30 rad pn = e36 radiator. even If you have the early style e30 radiator the e36 rad will pretty much pnp install.

[scottinAZ]

im running an aftermarket all aluminum E36 rad with the stock M20 fan and clutch. I have at MOST 1/2 inch of clearance between the two. I will most likely change to an electric puller fan shortly (when funds are available) to prevent radiator damage as the engine mounts age

[isra]

i had a late model e30 rad an it was hitting the clutchfan, so i used my early model rad
the slim one. the fan spins freely but it still rubs the rad, dont know if i did something wrong im using m20 fan. temp gauge is always on the middle mark even on hot days in traffic.

[Jand3rson]

Why even run an engine fan? Go with an electric.

[NWUnFitted]

Why even run an engine fan? Go with an electric.

Agreed :up:

[dude8383]

Why even run an engine fan? Go with an electric.

I'd say that in hotter climates you simply can't beat the effectiveness of the clutch fan. The electric fans don't hold a candle to it. Having said that, you could get a super powerful fan but it will sound like a friggin 10hp shop vac when it turns on.

[Dj Syco]

Atlanta GA and using stock(M20) electric fan. no problems.

[Danny]

I just wired my aux fan for constant on because I'm lazy as hell.

[trackjunkie21]

I went with an ffd puller in front, it turns on when the needle hits the halfway mark and the aux fan comes on at the same time. Very effective.