[BlueSuzy]

I have my sierra fan. Now i forget which way to put it back on.

Does the air change direction if the fan is put on the wrong way?

[Rockhopper]

yes. I'm not 100% sure only 90%, but I think it's supposed to draw air through your radiator towards your engine.

[royce]

doesnt matter which way you put it on it will still pull air through, but you need the correct edge leading or it wont be as good

[want33s]

You will notice the fan blades have one straight edge and one curvy edge.
Put the straight edge to the front.

Jas.

[BlueSuzy]

Ok. My fan has 1 straight edge, and one like a broken brittle plastic edge

[lump_a_charcoal]

It will only swap suck for blow if you start running your engine backwards.
I know you installed it, so there is a distinct possibility that you may have funked something up to that extent...

[BlueSuzy]

HAHAHA no im not that bad, Just seeing if i put it on the right way at the very beginning of the engine conversion a long time ago! May help with cooling alittle.

[want33s]

FRONT.... Faces radiator.


BACK.... Faces engine.

[BlueSuzy]

Ok just looked. My fan is the same. It is on backwards....

Now with the new radiator that is goin in..its going to affect the clearance because of the offset! AAArgh!

[BlueSuzy]

want33s wrote:

FRONT.... Faces radiator.


BACK.... Faces engine.

I call BS

YOU have it on the wrong way.

As you can see in the 1st pic. 4 Holes. With metal bushes. Look at the centre hole. It has a thin square plastic edging which supports the face of the alloy mounting block, then pokes through the hole. The other side does not!!

[Taff]

you have it the same way as jas.

look again

[BlueSuzy]

I did. Maybe you should look again.

All MY pics are from the back, the side that faces the engine. With the plastic support square,then alloy block, then bolts to the pulley.


Lip edge goes to radiator. Straight/internal gussets edge goes to engine.

Jas. Has Straight/internal gussets edge to radiator. Lip edge to engine.

I dont know how else to explain. every other way to explain it is confusing.
And im tired

[2stroker]

Hi Bluesuzy, mate the side with the 12 little gussets faces the raditaor, I double checked with a lady at work who has a 1994 sierra, she has had it from new, 51000km, original water pump, fan has never been off the engine.

[want33s]

You can fit your fan whichever way you like.

I'll stand by the pics I posted.

[BlueSuzy]

Then why the square plastic support?

[want33s]

BlueSuzy wrote:

Then why the square plastic support?

Who cares?

If the spacer was supposed to go the raised square bit you mention, the raised part would extend to the bolt holes.
If you put the raised bit to the spacer and then tighten the bolts you will bend and possibly damage the fan.
Jas.

[2stroker]

Yep you're right jas......try it BlueSuzy you will see it actually sits on better as well.

[Hybrid]

For the big picture who here really thinks there would be a substantial change in airflow either way? Fix your shroud blue.

[tanshi]

Just chuck it in reverse and it will blow the other way.

LMAO

[BlueSuzy]

New radiator is different. Shroud is fixed with a starlet thermo fan shroud. The motor is cutout of it. Will post pics later. Looks good atm.

Ok i will mount the fan you guy's way.
No matter how i think LOL