paul

Well-known Member
Combining beans yesterday, the coolant gauge started dropping.

Well, that ain’t right.

Went back and looked, little green stream weeping down the engine. Sigh.

Drove to the shop, hard to tell what is leaking, of course figure it’s the water pump, but you never know a hose or something squirting in the same area.

Wife was nice enough to start the engine a few times while I watched, wipe away between starts.

Yea, water pump. It was after 6pm, started taking it apart but didn’t get all that far. radiator too close, can’t get the fan, the fan bolts, the spacer, or nothing out all interlock too close.

this morning looked it up and was only 1 water pump listed for the M2, called the dealer and after looking they had one on the shelf! Whew.

Got it, got a part off their salvage machines I needed that took a while. The rock trap door latch deal.

Got home finished taking the old pump off. 4 bolts and I could lean the radiator out enough to get the fan and all out.

Then my heart sank. One of the 5 water pump bolts seemed loose, but wouldn’t thread out. Eventually it came out and. No threads, it was broken off. Oh no. Old rust, it had been that way a long time.

Couldn’t get the pump broke free from the big flange bracket it is mounted to. Looked close and it had a whole lot of goo stuff where a gasket should be.

Ended up taking the big flange bracket off the engine block, only 3 bolts. With the glued on pump on it.

Oh thank goodness, this exposed 3/4 inch of the broken off bolt that threads through the bracket and into the engine block. I can access it with a rod wrench or some such! Oh that made my day so much better. I was just sick about the broken off bolt I assumed would be resealed into the block.

Out on the bench, I could now knock the pump loose from the big flange and clean up all the goo they had on it.

So, clearly, the bolt broke and the previous owner just put it all together with goo and the broken bolt held in with goo and hoped for the best. It looks like it weeped or oozed coolant from that weak spot where it didn’t clamp together well enough.

Yea, this took me all day. About an hour drive one way to get the pump. And I’m slow and old.

At least it worked out. There were lots of places I was wondering what I was getting into with a simple water pump replace.
 
Combining beans yesterday, the coolant gauge started dropping.

Well, that ain’t right.

Went back and looked, little green stream weeping down the engine. Sigh.

Drove to the shop, hard to tell what is leaking, of course figure it’s the water pump, but you never know a hose or something squirting in the same area.

Wife was nice enough to start the engine a few times while I watched, wipe away between starts.

Yea, water pump. It was after 6pm, started taking it apart but didn’t get all that far. radiator too close, can’t get the fan, the fan bolts, the spacer, or nothing out all interlock too close.

this morning looked it up and was only 1 water pump listed for the M2, called the dealer and after looking they had one on the shelf! Whew.

Got it, got a part off their salvage machines I needed that took a while. The rock trap door latch deal.

Got home finished taking the old pump off. 4 bolts and I could lean the radiator out enough to get the fan and all out.

Then my heart sank. One of the 5 water pump bolts seemed loose, but wouldn’t thread out. Eventually it came out and. No threads, it was broken off. Oh no. Old rust, it had been that way a long time.

Couldn’t get the pump broke free from the big flange bracket it is mounted to. Looked close and it had a whole lot of goo stuff where a gasket should be.

Ended up taking the big flange bracket off the engine block, only 3 bolts. With the glued on pump on it.

Oh thank goodness, this exposed 3/4 inch of the broken off bolt that threads through the bracket and into the engine block. I can access it with a rod wrench or some such! Oh that made my day so much better. I was just sick about the broken off bolt I assumed would be resealed into the block.

Out on the bench, I could now knock the pump loose from the big flange and clean up all the goo they had on it.

So, clearly, the bolt broke and the previous owner just put it all together with goo and the broken bolt held in with goo and hoped for the best. It looks like it weeped or oozed coolant from that weak spot where it didn’t clamp together well enough.

Yea, this took me all day. About an hour drive one way to get the pump. And I’m slow and old.

At least it worked out. There were lots of places I was wondering what I was getting into with a simple water pump replace.
Been there last year on the White 8900.
This year has been.... Nuts as well. GG Wes
1000006394.jpg

Got back to running, Bailey ( my 21 yr old)is making progress. GG Wes
 
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At least you found the problem in a hurry. I had a New Idea 701 Uni with a 292 Chevy in it. It started leaking coolant one time and I don't just mean a little bit. It was hard to see the back side of the engine because it sat so close to the husking bed. I even thought for a while that the block had cracked. It never crossed my mind that there was a bypass hose between the water pump and thermostat housing on the back side and down under where you really had to be looking to find it. That hose had split.
 
GG that truck looks familiar. I drove for USF Dugan before Yellow bought them. Their colors were orange hood white cab. I drove one of those Volvos the first couple of years that I was there.
 
Finding enough bolt shank to grab onto is surely a good day. I'm sure you know this already, but don't even attempt to turn it out without hitting the area with a torch first and getting lots of heat in there. If it's seized and weak from rust and you end up breaking it off flush, suddenly it's a very bad day again.
 
GG that truck looks familiar. I drove for USF Dugan before Yellow bought them. Their colors were orange hood white cab. I drove one of those Volvos the first couple of years that I was there.
Funny enough. We call this, The orange crush...
It came from KS, farm had sons dealing with truck salvage etc. Chassis had been a trash truck in its former glory, eight speed, Eaton. Big cam Cummins. They had fixed it back up with the bed, and put your hood to the truck!
GG Wes
 
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