Recent content by Boi

To revive a dead thread in case anyone is interested: The cause of fan-clutch rattle is due to the holes for the guide pins on the internal piston being slightly out of round, allowing a small amount of movement of the fan assembly relative to the belt driven assembly when the clutch is...

Since I can only attached 20 images in a post, I will continue the rest here: Front support assembly with ground sleeve protruding from the center. Note the white writing: "surface". Damage seals on front support assembly. The source of the needle bearings. This was a bearing inside the...

Hello all, It has been a been quite an interesting endeavor, but the work is finally complete. The transmission for my M923A2 has been resurrected from the dead by my father and I, repaired on the side of a public road, with little more than a box of tools. I figured I should post the journey...

Yes! It was worth every bit of effort to get them; they look great.

UPDATE: After sending the woman at SOS the military standard document and disputing her erroneous claims by citing applicable statutes, I was given the green-light to get a title and registration for the vehicle. I have resubmitted the paperwork and should see a shiny new set of OM plates in a...

Great, thank you. The woman at SOS has yet to return my call, but when I get in touch with her I will first try employing the document and laws. If she still does not help, I will give Dan a call and see what he can do. I will report on my results.

Hello, Has anyone else had success in titling and registering an M923A2 in Illinois? (Former Military Vehicle registration -- Original Military (OM) Plates) I have a 1991 BMY-Harsco M923A2 and this one lady at the Secretary of State (SOS) is giving me a hard-time regarding titling of the...

I'm not sure I understand what you mean. Are you talking the nuts that hold the fan to the clutch? Or are you talking about hardware that holds the fan blades together? When mounting the fan to the clutch I made sure the nuts were snugged up. If this is the part you are referring to, I will go...

I don't think so. Before installation I examine each blade for looseness or damage, and after installation I pushed and pulled on them and confirmed that nothing was loose. It could be one of the three bearings in the clutch. I added grease to one of the two bearings in the fan-housing; the...

I reinstalled the fan clutch today and took the vehicle for a drive. This is both good and bad news. The good news is installation was quick and everything was functioning afterward. The "bad" news is that the rattle has diminished significantly, but not ceased entirely. The fan seems to be...

Hi Jerryv, I don't plan on using a new belt. The one that was installed still has a lot of life left on it, so I will replace it when it needs to be. :-D As for the reassembly: What I started off with was putting the piston/thrust plate in the housing for the fan. I lightly greased both...

Alright, here is my progress so far. I have completely disassembled the clutch, keeping in mind its function as I examined the parts. I am not yet certain what would be causing the rattling. It may be some of the bushings/spacers that I found... they were a bit loose, but I can't imagine they...

I don't have that issue, but having just taken the clutch apart I think I have an answer for you. Short answer is that one clutch face is sealed by two o-rings. On the bell for the fan, there is a small opening through which air goes to provide pressure that counteracts a spring that keeps the...

EDIT: Found it as an Evans FC200158, same one as Brasco (post 4) has in this thread. It is probably because the studs were rusty, but I was able to unscrew all but two studs instead of just removing the nuts. Looks like I'll have to get some red loctite on it when reinstalling. I'll have to...

I found that the fan is tight to the clutch with no movement perpendicular to the axis; it spins freely by hand without binding or wobble. It is only when it comes on and the engine is under load at idle that it sounds like someone is clanking metal plates together.