Accessory drive seal

[engineer233]

Ok, this should be rather simple but as always for me I'm having trouble. I don't have the correct tm's for this and can't seem to find anything on here, so here goes. I have a M923 with a NHC-250. The accessory drive seal is pouring . So far I have loosened the nut on the front of the pulley , removed the fan shroud, removed the fan and power steering belts. All that is left is the water pump belt. I am completely lost on this. I cant find anyway what so ever to loosen this belt for removal. I know when someone answers this for me I will feel stupid cause it is probably really easy . Oh well it wont be the first time. Please help..

 

[nk14zp]

You need to loosen the bolts that are holding the pump and then turn the pump.
The pump is eccentric for tightening/loosening the belts.

 

[nk14zp]

And you should order a new copper washer/ring that goes under the pump.

 

[WillWagner]

And you should order a new copper washer/ring that goes under the pump.

Yup, it'll leak after you touch it. Make sure to get a new wear sleeve too.

 

[engineer233]

Thanks for the heads up on the leak. This would have drove me crazy if I had got it all back together and then found out. Where would be the best place to order these parts ?

 

[5tondeuce]

Hi,
Did you get a new seal and wear ring or just the seal? I did the same job a while ago and the wear ring was toast also.

 

[engineer233]

I got a seal and wear ring. Also cummins sent a small L shaped seal?gasket? I really don't know where it goes yet.

 

[5tondeuce]

The "L "shaped gasket goes in the keyway to keep the oil from leaking out along the shaft. I only noticed this because when I was doing mine the L shaped gasket fell out. Hope this helps

 

[engineer233]

Thanks, this will help . It is so small you could miss this very easy. Along with ordering the copper washer for the water pump, will I need a pump gasket or can you change the washer without disturbing the pump gasket ?

 

[73m819]

how about the p/n for the seal, ware ring, lillle L shaped thing and the water pump copper ring, because when I replace the front gear cover/motor mount on the WW, I will need to ALL of these and a few more things, thanks

 

[5tondeuce]

Hi Ron,
I have a few part#s from cummins:
Wear ring 190397 $20.02, Seal 211255 $44.59. Sorry thats all i have, I did not replace the lillle L shaped thing , no leaks.

 

[WillWagner]

Thanks, this will help . It is so small you could miss this very easy. Along with ordering the copper washer for the water pump, will I need a pump gasket or can you change the washer without disturbing the pump gasket ?

The copper ring is the gasket. Slather it with anti sieze and it'll be easier to adjust the belts the next time you need to do it.

 

[engineer233]

The wear sleeve is pn# 190397 , The keyway seal is pn# 3008947 , The drive seal is pn# 3004316. I bought my parts from Worldwide Equipment here local. They have stores in Ky,Oh,Tn,Wv. The local store here has been the most helpful place I have dealt with so far in finding parts for my M923. All of this total was $50.

 

[engineer233]

I have another problem or two and need some advice. I got the accessory drive pulley of and found it to be cracked in the back next to the keyway. Set this aside and started to try and remove the drive seal. This to didn't go so well. After 40 minutes it now looks like a mess and still wont come out . What are my options or helpful hints on getting this out and finding another pulley ?

 

[engineer233]

When I called Worldwide Equipment I gave them the CPL # , S.O. # , and the Engine # that was stamped into the data plate on the accy drive . They contacted Cummins direct and made sure these were the correct parts for my engine.

 

[Ord22]

keep us posted, thanks