anyone know about the OHC 3.9L fan?

[falconizer_62]

i'm stripping down the block to lighten it and attaching only the bell to test fit it in my 62 falcon wagon. during the first test fit i had to cut the fan blades off because it was wedged and was lifting the car. i have never seen an attachment like that for a fan clutch before. is it by chance reverse thread? i looked at the other motor and i think i see where it comes apart. any removal tricks would be cool as well. all the accessories are off so i have to hold the pully with a screwdriver between the bolts.
little help?
p.s. anyone know where i can get a service manual for one of these?

 

[addo]

Talk to "ferros oxide" about the fan clutch.

There is a factory manual for the cars, should be about $80-$90 tops but not sure yet where to ask. Maybe "ford australia" forums?

 

[aussie7mains]

The clutch fan is indeed left hand thread, and you need a special tool which you can make, it grabs around the water pump pulley bolts so you can stop it turning, otherwise its straightforward.
The aftermarket service manuals are much cheaper than the factory ones.
If you search for Haynes servicemanuals you should find one easily enough.

 

[ferros oxide]

Falconizer,
glad to hear you are playing with a 3.9.
yes the fan hub is a reverse/left thread.
The correct way.
Is to fit a fabricated spanner to hold the waterpump hub by the bolts.
Fit a spanner to the cooling fan hub, loosen in the left thread rotation.
this is usually difficult due to a locking agent applied to the threads.
The way around this , jam something long, thin and strong in between the pulley bolts and the hub. Some times removing two of the bolts to gain better access. fit a spanner/shifting spanner and hit the end of the spanner with a soft hammer to undo the fan from the water pump pulley/hub.
Noel

 

[falconizer_62]

thank you!! very helpful. yes, it's true i am building a 3.9 with a holley 600 and headers on it. any issues that i should look for when tearing it down? any places known to crack?.
so far i like to motor a lot. there are a lot of cool design features and it seems pretty bullet proof.
peace

 

[OzHemi]

I've got a great big wrench if you don't have one that will fit over the fan clutch (just got back from another looooong day running around)

 

[aussie7mains]

Theres nothing untoward about the 3.9l, its fairly bulletproof, the only issue I know of is cyclinder head corrosion at the rear of the face, around the two water holes. Only minor thing is the plastic timing chain guides which can break up on really high milage engines (above 400000km)
This is fairly easily fixed with TIG welding and straightening.
Otherwise alls well.
Why do you want to use a 600 four barrel? Is your multi point or single point EFI, why not use that? Also the stock exhaust manifold is entirely adequate up to around 170kw and is used by ford on all the XR6 engines, I have one of the AU VCT engines in a falcon which goes quite well.
A7M

 

[falconizer_62]

i have both the multi point and tbc engines. the multi point manifold won't fit between the shock towers. i would have to do a mustang II set-up, which is a lot of work and expense for induction. the tbc seems pretty small, but the manifold can be hogged out a bit and a carb mounted. the multi point also has the lower mounted AC compressor which is right at the frame rail as well as poor access to the distributer and coil and other things mounted on the right side. i also think that the motor looks pretty good stripped down in 60's style as it will be going in a 62 vehicle. the plans are still pretty wide open at this point though.
one thought, i'm fitting everything with a 3 speed auto. when i do it for real i will have a 4 speed auto w/ overdrive. any place on the trans i need to look for extra clearance between the 3 and 4 speeds?
thanks for all the help. i feel like i could use "3.9L for dummies"
well, time to go work on it!!! i'll put up some more pics soon
peace.

 

[falconizer_62]

got the tools....
all went well. thanks again