I have an 86 f150, 4.9l. - Right hand thread. I am in the process of replacing the water pump Abe crankshaft pulley. Radiator is removed.b

The fan clutch bolt is completely rounded off and I am trying to figure out how im the world I can proceed on my work.

The fan is right hand threaded. I tried to use the specialized removal tool and it bent up around where it came into contact with the bolt. I then tried to chisel it free with a 3lb mallet and a long chisel. All that seems to accomplish is making deep indentations and further destroying the bolt.

I am not opposed to getting a sawzall at this point. I don't have air so air chisels are out of the question. This thing is fused on here!

What else can be done? Where do I cut?

 

i have pull the water pump with clutch fan together. So I can get it in a vice. If you can get the water pump in a vice you can use a pipe wrench to get it lose.

 

I would like to see a picture of what you are trying to get off.
I ask because all the clutch part of the fan is bolted to the water pump with 4 nuts.
Once off the pump you unbolt the fan from the clutch part, move old fan to new clutch part and bolt it back to water pump.


BTW if you have been beating on this clutch with it on the pump on the motor buy a new pump as you have beating on the pump bearings & seal and that is not good.
Dave ----

 

+1 on that. I was going to suggest unbolting the pump, clutch, and fan as an assembly. From there you could tackle the disassembly at your workbench, instead of fighting with it in the narrow space behind the radiator. But Dave brings up an excellent point that your water pump is probably trashed. As cheap as a water pump is, I wouldn't gamble on a now suspect unit.

You may have to pull the radiator for access to remove the pump/clutch/fan assembly.

 

I added a pic to the original post.

How do I go about removing it all in one go? I know there are 4 bolts holding the water pump on but they're a little hard to get to. I'm assuming that the belts would need to be removed in order to get to them, right?

 

What happens if you remove the 4 bolts holding the pulleys to the H2O pump?

 

Doesn't the fan clutch thread onto the shaft/snout of the water pump?
The pulley will then be trapped between the flange it bolts to and the clutch hub that is seized to the shaft.

 

I think I would continue with trying to split the nut (maybe with a better hardened chisel) being as how the water pump is going to need replaced, given the hammering it's taken so far. I looked for a open "C" style nut splitter but it seems they only go to 3/4". Maybe apply some heat, then chisel.

 

Yes it does. Wondering if it will allow better access to water pump bolts.

 

Have you tried a nut splitter? I've had good luck with them. I'm not sure you can get one in there though.

https://www.amazon.com/Silverline-Fo...SIN=B000LFXN94

 

Maybe a C frame type: https://www.amazon.com/OTC-4576-Univ...SIN=B000KSTCGU

 

I have never seen one like that.
The person that thought that up should be slapped!
The ones I have seen has the clutch flange on the outside of the WP pulley not between the pulley & pump flange!
Dave ----

 

At this point, your water pump and clutch are probably junk, so bring out the torch. Even a propane torch is enough. Heat the nut up and put a good wrench or vise grips on and hit with a hammer. They usually spin free then.

 

Being it's v-belt I'm pretty sure it's left handed ...

-Enjoy
fh : )_~

 

I am prone to using the wrong jargon when it comes to threads, but on the 4.9L engine [1984 - 1986], this nut is "backwards" of what is considered normal. [lefty - tightie]