​​​​​​​

Durant Motors Internet Forum

Our Purpose

  Preserve the automobiles manufactured by the Durant Motor Company, provide enjoyment for each member with meets, tours & technical assistance.


This forum is provided by the Durant Motors Automobile Club located at durantmotors.org





How to Add Pictures 

General Discussion Forum
Start a New Topic 
Author
Comment
Water Pump Question

I am not familiar with the '32 DeVoux (40A engine) water pump...I have the pump apart and will install a new stainless shaft and bronze bearings...I see that this water pump has no grease cups over the bearings for lubercation, It has been center drilled in that area but nothing more....Did they stop using grease cups in the later engines and depend on some type of water additive/lubricant? Or I am wondering if the machinist who built this pump was running late for his coffee break and the grease cups never got installed? The old shaft does show conciderable wear at the end bearing...(If grease cups were not originaly used would I want to install Oilite bronze bearings?)

Where Are You From? Leavenworth, WA / Yuma, AZ

Do You own a car built by Durant? Several

Re: Water Pump Question

Bill- I've seen them with the small "flip top" grease fitting and with the larger conventional cups with the screw down winged tops. I've also seen them with the holes not drilled and with the grease cups blocked off by the undrilled bearing. I had a new shaft made for mine with new bearings pressed in and a new "hat" made for the large adjusting nut to press the graphite rope against. Not sure what type of bearing material used. I think someone in the club has the flexible connection reproduced for the water pump to generator connection.

Where Are You From? Orygun

Do You own a car built by Durant? 1930 6-14

Re: Water Pump Question

Thanks Ross,

Yes, It looks like the holes were drilled through the pump housing with a beveling center drill (no threads) and the bearings themselves are not drilled to block off the passage....No telling how many hours it may have taken to wear out...I seam to have problems at times with water leaking back through grease cups so I am tempted to go back together with the pump the way it was, fit the bearings a little on the loose side and add a water pump lubricant to the cooling system...Any thoughts or suggestions?

I have been making my own flexible drive hoses using 2wire hydraulic hose, I have my parts house cut them to the exact length, then use a dramel grinding tool to do a nice job drilling the holes (the wire is tough) also to install the shorter length hoses you do need to remove the pump to slip them on as they are stiff, or install them at a time that you have the pump off.

Where Are You From? Leavenworth, WA / Yuma, AZ

Do You own a car built by Durant? Several

Re: Water Pump Question

Hi Bill.
Not sure i would add water lubricant as can plug the radiator tubes, and our systems are not pressurized so with a new snug bushing should be OK and they make a grease impregnated bushing for our old type water pumps. Just some ideas.
Lance Haynes
San Diego Ca :relaxed:

Where Are You From? San Diego, CA

Do You own a car built by Durant? Yes a bunch of them

Re: Water Pump Question

Bill- What do you think of using Evans waterless coolant? Would seem to be great for our pressureless systems in vehicles that can sit for an extended period of time.

Where Are You From? Orygun

Do You own a car built by Durant? 1930 6-14

Re: Water Pump Question

My 32 22A has exactly the same idea as the De Vaux. No fittings either side of the pump, just indents as you describe for a drop of oil.

Where Are You From? Ottawa Ont

Do You own a car built by Durant? 1932 Dominion built 614 Sedan

Re: Water Pump Question

Norm,

I thought the same thing at first, but if you think about it, if the bushing/bearing were drilled to accept oil, then you would also have water leaking back out of the indented hole....I read where , after telling him that it couldn't be done Chrysler in 1930 developed the self lubricating sleeve bearing(or what some refer to as an oilite bearing)to use in "water pumps" and spring shackles.... The old bearings in this '32 DeVoux pump are bronze and could be oilite...Wonder if this was the beginning of the end on using grease cups on water pumps?

Where Are You From? Leavenworth, WA / Yuma, AZ

Do You own a car built by Durant? Several

Re: Water Pump Question

Ross
Bill- What do you think of using Evans waterless coolant? Would seem to be great for our pressureless systems in vehicles that can sit for an extended period of time.
Ross,

This Evens waterless coolant has a lot of good review on Amazon, I don't know much about it other than what I am reading, but Reading some of the reviews it looks like your engine will run maybe 15 degrees hotter...The good news, its boiling point is 375 degrees, the bad news, will our old cars vapor lock more readly on hot days? Also, since it will not mix with water I think you would always need to carry along an extra supply in case of a coolant leak...It's also a little spendy....I don't know, I am a little on the skeptical side, I say "let Mikie try it first"

Where Are You From? Leavenworth, WA / Yuma, AZ

Do You own a car built by Durant? Several

Re: Water Pump Question

Yeah Bill, I have bought some Evans for the Durant, but I haven't used it yet. The prep is kind of a pain. Ideally they want you to get all the water out of the system, so the best time would be when you are doing something major to the motor, such as a valve job.It costs more, but it advertised as lifetime, so that may be a wash. I had an event with the 6-14 where it got overheated and spewed coolant all over the front of the car,which was a mess,as well as being hard on the rest of the equipment! Leno uses it in his vehicles, and whatever someone may think of him, it must work in his hands in his multi million dollar collection.Ross

Where Are You From? Orygun

Do You own a car built by Durant? 1930 6-14

Re: Water Pump Question

Bill .. thought the same thing after I hit the submit tab on the mail and rushed off to work at the church. Got out the 614 owners manual and the only thing we do with the water pump is turn the packing nut up to stop any leaks, should they occur. Winter Lubrication … Use lighter oil in spring shackles, clutch throw out bearing and break parts to prevent possibility of damage and seizure. And yes they misspelled brake as break. Under Brake Lubrication spelled correctly) The brakes require no lubrication other than a few drops of engine oil every 500 miles on the brake rod connections all located at the brake cross shaft, hand brake lever and foot brake pedal.

Must be what you read.
Oilite is a porous bronze or iron alloy commonly impregnated with an oil lubricant and used in bearings. The original Oilite and Oilite Plus are bronze alloys, while Super Oilite and Super Oilite 16 are iron-based. Oilite was developed by Chrysler in 1930, originally for use in bearings for water pumps and spring shackles, and without oil as the porous filter element in gasoline filters. Chrysler sold approximately 500,000 Oilite bearings in 1930 and approximately 2.5 million the next year. The Super Oilite was introduced in 1932. Overall sales of all Oilite material in 1932 was seven million; this rose to 18 million in 1933. Oilite was a profit center for Chrysler during this time. Currently, the Oilite trademark belongs to Beemer Precision.

Composition
Oilite is formed using powder metallurgy so that tiny pores are present in the metal. The pores are then vacuum impregnated with an oil to improve the material’s bearing ability. The material holds approximately 20% oil by volume. The most common lubricant is SAE 30 oil.
Due to the porous structure, machining Oilite poses a special situation. To machine Oilite, the cutting tool must be—and stay—sharp; therefore, tungsten carbide is often used. The sharp tool preserves the open-pore structure, because a dull tool would smear the material and close up the pores that are on the surface adjacent to the journal, which is where the lubrication needs to be. Reaming is not recommended, but can be done with an extremely sharp tool. Honing and grinding should not be performed on any surface that is in contact with the journal as these processes always smear the pores.

Where Are You From? Ottawa Ont

Do You own a car built by Durant? 1932 Dominion built 614 Sedan

Re: Water Pump Question

Norm, that is the same article, however I never bothered to read the last part...Interesting that they don't recommend that you ream an oilite bearing, that's just what I was planning on doing to give the pump running clearance...I just recieved the oilite bearings from McMasters...Sure enough they have an exact 5/8"(.625) I.D., my new Stainless steel shaft has exactly the same O.D. (.625) so, no clearance...I didn't realize it but after measuring the unworn ends on a coupla old original shafts, they measure (.620 ) or .005 thousands under 5/8" for running/grease clearance....So guess the shaft will go back into the lathe.

Where Are You From? Leavenworth, WA / Yuma, AZ

Do You own a car built by Durant? Several

Re: Water Pump Question

Typical man thing, who reads the instructions ha ha. Then we use the excuse they always add extra parts or it was made wrong at the factory. :innocent:

Where Are You From? Ottawa Ont

Do You own a car built by Durant? 1932 Dominion built 614 Sedan

 

The Durant Motors Automobile Club