Re: Don’s 1937 (120) 138CD Deluxe Touring Limo
Posted by Don B On 2024/4/18 20:44:15
I finally decided to bite the bullet and try repacking my water pump. I got it done and definitely learned some tricks along the way.
I started with the packing nut pretty well bottomed out.
This is where it ended up after adding four strands of 1/8 in graphite packing. The shaft was in good shape and I now have a lot of room to tighten if needed. I am very appreciative to the suggestion by others on this site to slip a piece of heavy cardboard between the fan and radiator before I started. That undoubtedly prevented some damage.
I found that cutting the head off a bolt to use as as guide stud when reinstalling the fan was a HUGE help.
While I had the coolant drained, I also added a new heater tube and a support strap tied into the air cleaner support. I also replaced my heater shutoff valve. I took the old one apart to look at it closer and found it was pretty well shot. The new valve has handle which will be much easier to use as well.
After doing this, I now won’t have any worries about replacing the water pump if/when it ever needs it down the road. I do have a benefit of a new front motor mount, so I can get to all the bolts without having to jack up the engine.
Just for grins, I decided to clean up the old shutoff valve.
As you can see, the bolt is totally shot and won’t seal up no matter what.
I started with the packing nut pretty well bottomed out.
This is where it ended up after adding four strands of 1/8 in graphite packing. The shaft was in good shape and I now have a lot of room to tighten if needed. I am very appreciative to the suggestion by others on this site to slip a piece of heavy cardboard between the fan and radiator before I started. That undoubtedly prevented some damage.
I found that cutting the head off a bolt to use as as guide stud when reinstalling the fan was a HUGE help.
While I had the coolant drained, I also added a new heater tube and a support strap tied into the air cleaner support. I also replaced my heater shutoff valve. I took the old one apart to look at it closer and found it was pretty well shot. The new valve has handle which will be much easier to use as well.
After doing this, I now won’t have any worries about replacing the water pump if/when it ever needs it down the road. I do have a benefit of a new front motor mount, so I can get to all the bolts without having to jack up the engine.
Just for grins, I decided to clean up the old shutoff valve.
As you can see, the bolt is totally shot and won’t seal up no matter what.
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